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 [Search a list of Patent Appplications for class 4]   CLASS 4,BATHS, CLOSETS, SINKS, AND SPITTOONS
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SECTION I - CLASS DEFINITION

This class includes bathing apparatus, water-closets, dry closets, urinals, bed-pans, spittoons, closet tanks or cisterns, and ventilating and disinfecting apparatus for the above-noted apparatus and for sewers, except such devices as have been especially provided for in other classes.

Search the classes in References to Other Class, below, for art relating to this class (4).

SECTION II - SUBCLASS REFERENCES TO THE CURRENT CLASS

SEE OR SEARCH THIS CLASS, SUBCLASS:

238,250, 335+, 338, 408, 436, 468, 473, and 486, for seat-operated devices.
238,469, 473, and 486, for lid-operated devices.
248,360, and 388, for dash-pots.

SECTION III - REFERENCES TO OTHER CLASSES

SEE OR SEARCH CLASS:

5, Beds,   subclasses 60+ for an invalid bed, subclasses 81.1+ for means to lift and transfer an invalid independent of a bed and subclass 90 for an invalid bed with a toilet.
15, Brushing, Scrubbing, and General Cleaning,   subclasses 104.03+ for mechanical or gaseous pressure devices for hammering, cutting, scraping, loosening or flushing deposits from conduits, pipes or tubes; and subclasses 406+ for an air blast soot blower for tubing.
16, Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, etc.),   subclasses 221+ .
49, Movable or Removable Closures,   subclasses 381+ for an obstructive structure that bars traffic through a passage and is mounted to (1) move in a regular, repetitive, predetermined path, or (2) be taken away.
52, Static Structures (e.g., Buildings),   subclasses 34+ for a prefabricated bathroom.
68, Textiles: Fluid Treating Apparatus,   subclasses 216+ for a hand held pounder with plunger.
119, Animal Husbandry,   subclasses 161+ for a waste toilet or related device.
126, Stoves and Furnaces,   subclasses 344 through 363.1for a liquid heater that may include a kettle, a steam generator, stove pipe for use with a stove, and a domestic water heater or boiler (e.g., kitchen boiler, range boiler, etc.) for use with a stove or furnace.
134, Cleaning and Liquid Contact With Solids,   subclasses 22.11+ for internal surface treatment of pipe etc., subclass 24 for internal surface treatment of hollow work with movable fluid applying nozzle and/or with plugging or sealing of work passage or opening, subclass 166 for a conduit cleaner, subclass 167 for a conduit cleaner with movably or flexibly mounted spray or jet applying conduits or nozzle, subclass 168 for a conduit cleaner with a pump and movable nozzle, and subclass 169 for a conduit cleaner using a pump.
137, Fluid Handling,   subclass 240 for a system in which a material (e.g., a chemical or physical agent) different from the fluent material of the system is introduced to clean parts of the system, subclasses 247.41+ for U-shaped liquid trap seal, subclasses 312+ for leakage or drip collecting, subclass 362 for a floor drain, subclasses 386+ for a liquid level condition responsive device in means to receive an accumulation thereof (float actuated inlet valve for a toilet tank), subclasses 577+ for a tank with a movable or adjustable outlet or overflow pipe, subclasses 615+ for an articulated faucet or spout, subclass 800 for a nozzle or spout with a removable closure member, subclass 801 for a faucet or spout, and subclasses 861+ for flow control means for branched passages.
138, Pipes and Tubular Conduits,   subclasses 89+ for a closure or plug for a pipe and subclass 90 for a closure or plug having means to introduce pressurized fluid into the pipe.
181, Acoustics,   subclasses 233+ for a fluid conducting motion silencer and especially subclass 234 for a flush closet type.
210, Liquid Purification or Separation,   subclasses 632 , 638, 660+, 696+, 702+, and 749+ for processes of chemical treatment for purification or separation, and subclasses 198.1+ for apparatus for purification or separation with additional treating material.
220, Receptacles,   and see the notes to the main class definition for receptacles and see the notes to subclass 200 for closures in other classes.
221, Article Dispensing,   appropriate subclasses for a general article dispensing mechanism.
222, Dispensing,   appropriate subclasses for dispensing means in general, and subclasses 67+ for a float that follows the material level and actuates a dispenser.
226, Advancing Material of Indeterminate Length,   subclasses 120+ for a mechanism that intermittently moves material and subclasses 127+ for a manual material mover (e.g., a dispenser) mechanism.
236, Automatic Temperature and Humidity Regulation,   subclasses 12.1+ for apparatus that mixes two or more supplies at dissimilar temperatures where one supply is controlled according to the temperature of the mixed fluid or the temperature of one of the fluid supplies.
239, Fluid Sprinkling, Spraying, and Diffusing,   subclasses 225.1+ for a jet that continuously moves relative to the support during spraying, subclasses 398+ for the combining of separately supplied fluids, subclass 428.5 for liquid flow entraining atmospheric air into the stream and Digest 13 for a tube cleaner.
241, Solid Material Comminution or Disintegration,   appropriate subclasses for comminutors, per se, especially subclass 46.013 for an under-sink disposal including mounting structure to support the disposal under a sink. Combinations of such devices with sinks and the like are classified in Class 4.
242, Winding, Tensioning, or Guiding,   subclasses 578+ for a delivery roll holder (e.g., a dispenser) mechanism or subclasses 538+ for a winding machine mechanism with a supply roll.
248, Supports,   subclasses 129 , 146, 241, 274.1, and 311.2+.
249, Static Molds,   subclass 58 for molding apparatus for forming closet fixtures.
251, Valves and Valve Actuation,   subclass 12 for flush valves of the fluid actuated or retarded type, subclasses 153+ for valves combined with inlet or outlet structure comprising a single flow path, especially subclass 155 for a valve associated with a nozzle or spout, subclasses 213+ for a mechanical movement actuator and especially subclasses 231+ for a lever type mechanical movement actuator, subclass 340 for a valve actuator surrounding a nozzle, and subclasses 349+ for an inlet or outlet element which serves as a valve actuator.
261, Gas and Liquid Contact Apparatus,   subclasses 75+ for device specifically designed to produce an intimate contact between a gas and a liquid, and Digest 75 for a device using flowing liquid to aspirate gas.
285, Pipe Joints or Couplings,   subclass 8 for a slip-on coupling for a faucet, subclass 46 for an escutcheon for a pipe joint or coupling, subclass 64 for a static building construction support for a pipe joint or coupling, subclasses 125.1+ for means to provide a coupling for several lines, subclasses 134.1+ for a U-shaped fitting, subclasses179+ for an elbow joint and subclass 193 for an end that pierces or penetrates a side or a plate.
297, Chairs and Seats,   subclasses 219.1+ for a connected pad or cover (e.g., a slipcover) and Digest 10 for a chair or seat with occupant arising assistance.
312, Supports: Cabinet Structure,   subclasses 228 and 229 for cabinets with washbasins and drains. Also see 2(a) of the Class Definition.
401, Coating Implements With Material Supply,   appropriate subclasses, particularly subclasses 196+ , 261+ and 268+ for a coating implement with material supply, used for cleaning.
403, Joints and Connections,   appropriate subclasses for joints and connections in general.
414, Material or Article Handling,   subclass 921 for handicapped person handling.
417, Pumps,   appropriate subclasses for a pump of general utility, per se, which may be used to clear an obstruction but is not adapted for use on a bath, flush closet, sink, or drain pipe.
418, Rotary Expansible Chamber Devices,   appropriate subclasses for a rotary expansible chamber pump, per se.
422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,   subclasses 1+ for a process to disinfect, preserve, deodorize, or sterilize, and subclasses 243+ for apparatus to treat a solid article or material with a fluid chemical.
424, Drug, Bio-Affecting and Body Treating Compositions,   subclasses 40+ for a composition that is usually incompletely burned or at least has a chemical reaction to project the composition into the air as a smoke, mist, or aerosol, and subclasses 76.1+ for a deodorant, disinfectant, or olfactory desensitizer composition.
454, Ventilation,   for ventilating devices not peculiar to the subject matter of this class, subclass 43 for a flue heater, subclass 48 the ventilation of an exterior vault or manhole cover, subclasses 83+ for ventilation of rail vehicles in general, and subclasses 1+, 115+, 162+, and 341+ for exhaust type ventilating devices associated with roof structure.
510, Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions,   for cleaning compositions having a particular shape or structure to adapt them for use, search subclasses 109+ for compositions tailored for a specific utility (e.g., toilet soap bars, including packages); for cleaning compositions of general utility, search subclasses 406 and 439 for packaged compositions, subclasses 382+ for antiseptic or biocidal compositions, and subclasses 440 and 447+ for shaped, barlike compositions.
601, Surgery: Kinesitherapy,   particularly subclasses 154+ for a device or method therefor which may be structurally similar to a Class 4 bathing device which provides medical treatment to the body for a named ailment or injury thereof. Generic terms such as "treatment"", "therapy"", "massage"", "hydrotherapy"", "hydromassage"", etc. are to be interpreted broadly for placement in Class 4 lacking a disclosed body treatment for a named medical condition or physical injury. Exceptions to this rule comprise generically disclosed and claimed hydrotherapy of dental tissue or genitalia, or a device for applying a force which imparts a specific motion to the body or portion thereof which shall be classified in Class 601.

SUBCLASSES

[List of Patents for class 4 subclass 111.1]    111.1With heating means:
 This subclass is indented under subclass 449.  Device having means for elevating the temperature of material discharged to the closet to dry or burn the same.

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221,for sewer gas conducted to a furnace or to a fluid fuel burner.

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110, Furnaces,   subclasses 235+ for incinerators of refuse material.
424, Drug, Bio-Affecting and Body Treating Compositions,   subclasses 40+ for a composition that is usually incompletely burned or at least has a chemical reaction to project the composition into the air as a smoke, mist, or aerosol, and subclasses 76.1+ for a deodorant, disinfectant, or olfactory desensitizer composition.
  
[List of Patents for class 4 subclass 111.2]    111.2And cyclic control means:
 This subclass is indented under subclass 111.1.  Device wherein means is provided to regulate the sequence within which operations occur or the length of time required for the performance of any particular operation.

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110, Furnaces,   subclass 191 for refuse burners having cyclic control means.
  
[List of Patents for class 4 subclass 111.3]    111.3Having seat actuator or interlock:
 This subclass is indented under subclass 111.2.  Device wherein the position of the seat either initiates actuation of an operation or allows the operation to be initiated.
  
[List of Patents for class 4 subclass 111.4]    111.4Fluid fuel burner:
 This subclass is indented under subclass 111.1.  Device wherein means is provided for supplying a combustible gas or liquid to the combustion chamber to effect incineration of the waste material.
  
[List of Patents for class 4 subclass 111.5]    111.5Electric:
 This subclass is indented under subclass 111.1.  Device wherein an electric heating means is used to effect combustion of the material discharged to the closet.

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110, Furnaces,   subclass 250 for refuse incinerators having electric heating means.
  
[List of Patents for class 4 subclass 111.6]    111.6And separate drying zone:
 This subclass is indented under subclass 111.1.  Device wherein moisture is driven off the material prior to its introduction into an incinerating region.

SEE OR SEARCH CLASS:

110, Furnaces,   subclasses 224+ for refuse incinerators having drying means.
  
[List of Patents for class 4 subclass 114.1]    114.1Urinal:
 This subclass is indented under subclass 458.  Subject matter wherein the closet is for receiving urine as distinguished from fecal matter.
  
[List of Patents for class 4 subclass 144.1]    144.1Urinal:
 This subclass is indented under subclass 449.  Subject matter means for receiving urine only.

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301+,for a urinal with a liquid flush.

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600, Surgery,   particularly subclasses 573+ for a urinal disclosed for use in collecting a specimen for a diagnostic purpose.
604, Surgery,   particularly subclasses 327+ for a device for collecting a bodily discharge, e.g., urine, and which is (a) attached to or worn on the body for any reason, including for the convenience of the user, or (b) used to receive the urinary discharge from a patient suffering from a urinary control ailment, e.g., incontinence. An unclaimed article of clothing, e.g., underpants, may be used to attach the device to the body of the user.
  
[List of Patents for class 4 subclass 144.2]    144.2Disposable, entirely or a portion:
 This subclass is indented under subclass 144.1.  wherein receiver is designed to be taken away as a unit or a part may be removed.
  
[List of Patents for class 4 subclass 144.3]    144.3Contacting and conforming to anatomy:
 This subclass is indented under subclass 144.1.  Subject matter wherein the receiver is designed to touch and have the same form as the structure of the body.
  
[List of Patents for class 4 subclass 144.4]    144.4Spout only:
 This subclass is indented under subclass 144.1.  Subject matter wherein the receiver is in the shape of a pipe or tube.
  
[List of Patents for class 4 subclass 209]    209VENTILATION:
 This subclass is indented under the class definition.  The general miscellaneous subclass for devices for ventilation of apparatus included in this class.

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111.1+,for ventilation of a dry closet having heating means to dry or burn human waste material.
219+,for ventilation of a sewer.
306,for ventilation (i.e., noxious fume removal) of a urinal type flush closet.
347+,for ventilation (i.e., noxious fume removal) of a flush closet.
472,for ventilation of a dry closet having a valved bowl.
475,for ventilation of a dry closet having a two receptacles, one being a subchamber.
477,for ventilation of a dry closet having a receptacle inside an enclosure that includes a closet seat.
479,for ventilation of a dry closet having a receptacle such as a bowl, pot, bag, or etc.

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454, Ventilation,   for ventilating devices not peculiar to subject matter of this class, particularly subclasses 341+ for ventilating devices which exhaust stale air from a room.
  
[List of Patents for class 4 subclass 210]    210Railway car:
 This subclass is indented under subclass 209.  Devices for ventilating railway-car closets.

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454, Ventilation,   particularly subclasses 83+ for the ventilation of rail vehicles, in general.
  
[List of Patents for class 4 subclass 211]    211House plumbing:
 This subclass is indented under subclass 209.  Systems of piping for apparatus relating to this class used in a house having ventilating structure combined therewith.

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219+,for means to ventilate a sewer.
252.1+,for a flush closet bowl support, coupling, seal, or fastener.

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137, Fluid Handling,   for fluid handling apparatus in general, see particular subclasses 357+ for fluid handling devices combined with building structure.
138, Pipes and Tubular Conduits,   for pertinent subclass(es) as determined by schedule review.
285, Pipe Joints or Couplings,   subclasses 125.1+ for multiple outlet fittings, subclasses 134.1+ for a U-type fitting, and subclass 179 for elbow fittings of general utility.
  
[List of Patents for class 4 subclass 213]    213Electric-motor pump:
 This subclass is indented under subclass 209.  The air and gases are carried away by an air pump operated by an electric motor.

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310, Electrical Generator or Motor Structure,   appropriate subclasses for electric motor structure.
318, Electricity: Motive Power Systems,   appropriate subclasses, for electric motor control systems.
  
[List of Patents for class 4 subclass 214]    214Water-motor pump:
 This subclass is indented under subclass 209.  The pump is operated by a water motor.
  
[List of Patents for class 4 subclass 215]    215Water-jet pump:
 This subclass is indented under subclass 209.  The gases are removed by a water-jet pump.

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417, Pumps,   subclasses 151+ for jet pump structure, per se.
  
[List of Patents for class 4 subclass 216]    216Bowl structure or vent valve:
 This subclass is indented under subclass 209.  The general miscellaneous structure of a bowl provided with a ventilator, not provided for in preceding subclasses. Also includes the valve structure controlling the vent pipe.

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348+,for a flush closet with a ventilated bowl.
  
[List of Patents for class 4 subclass 217]    217Seat structure:
 This subclass is indented under subclass 209.  Closet seats provided with ventilating means.
  
[List of Patents for class 4 subclass 218]    218Roof outlet:
 This subclass is indented under subclass 209.  The structure of the roof connection with the vent pipe.

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285, Pipe Joints or Couplings,   subclasses 42+ for roof flashing.
454, Ventilation,   for ventilating devices not peculiar to subject matter of this class, particularly subclasses 1+ , 115+, 162+, and 341+ for exhaust-type ventilating devices, in general, which are associated with roof structure.
  
[List of Patents for class 4 subclass 219]    219Sewer:
 This subclass is indented under subclass 209.  Means for ventilating sewers.

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211,for house systems.
  
[List of Patents for class 4 subclass 220]    220Disinfecting:
 This subclass is indented under subclass 219.  Sewer ventilators provided with disinfecting apparatus.

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221,for sewer gas conducted to a furnace or to a fluid fuel burner.
222+,for general disinfecting or chemical dispensing apparatus.

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422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,   subclasses 1+ for a process to disinfect, preserve, deodorize, or sterilize, and subclasses 243+ for apparatus to treat a solid article or material with a fluid chemical.
424, Drug, Bio-Affecting and Body Treating Compositions,   subclasses 40+ for a composition that is usually incompletely burned or at least has a chemical reaction to project the composition into the air as a smoke, mist, or aerosol, and subclasses 76.1+ for a deodorant, disinfectant, or olfactory desensitizer composition.
  
[List of Patents for class 4 subclass 221]    221Burner:
 This subclass is indented under subclass 219.  The sewer gases are conducted to a furnace or to a fluid-fuel burner.

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222+,for general disinfecting or chemical dispensing apparatus.

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424, Drug, Bio-Affecting and Body Treating Compositions,   subclasses 40+ for a composition that is usually incompletely burned or at least has a chemical reaction to project the composition into the air as a smoke, mist, or aerosol, and subclasses 76.1+ for a deodorant, disinfectant, or olfactory desensitizer composition.
454, Ventilation,   subclass 43 for a flue heater and subclass 48 for exterior vault or manhole covers.
  
[List of Patents for class 4 subclass 222]    222DISINFECTION:
 The general subclass for disinfecting apparatus pertaining to this class not provided for in any of the following subclasses: 111.1, 220, 221, 261, 294, 309, or 459.
(1) Note. This subclass also includes a dispensed material that can deodorize, clean, or color.

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111.1+,for a dry closet having a drying or burning means.
220+,for a sewer, a ventilator provided with disinfecting apparatus.
261,for a spittoon provided with disinfecting apparatus.
294,for a closure adapted to be placed over the waste outlet of a sink or bath having a disinfectant means.
309,for a urinal only, including a disinfecting or deodorizing means.
459,for a dry closet using a chemical for disinfection.
464+,for a dry closet having a magazine containing granular material and means for discharging a portion to the bowl.

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210, Liquid Purification or Separation,   subclasses 632 , 638, 660+, 696+, 702+, and 749+ for processes of chemical treatment for purification or separation, and subclasses 198.1+ for apparatus for purification or separation with additional treating material.
422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,   subclasses 1+ for a process to disinfect, preserve, deodorize, or sterilize, and subclasses 243+ for apparatus to treat a solid article or material with a fluid chemical.
424, Drug, Bio-Affecting and Body Treating Compositions,   subclasses 40+ for a composition that is usually incompletely burned or at least has a chemical reaction to project the composition into the air as a smoke, mist, or aerosol, and subclasses 76.1+ for a deodorant, disinfectant, or olfactory desensitizer composition.
510, Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions,   for cleaning compositions having a particular shape or structure to adapt them for use, search subclasses 109+ for compositions tailored for a specific utility (e.g., toilet soap bars, including packages); for cleaning compositions of general utility, search subclasses 406 and 439 for packaged compositions, subclasses 382+ for antiseptic or biocidal compositions, and subclasses 440 and 447+ for shaped, barlike compositions.
  
[List of Patents for class 4 subclass 222.1]    222.1With screen:
 This subclass is indented under subclass 222.  Subject matter including means to strain material from a drain outlet.
  
[List of Patents for class 4 subclass 223]    223Dispensing to bowl:
 This subclass is indented under subclass 222.  The disinfectant is dispensed directly to the bowl.

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225.1,for dispensing to bowl through overflow.
226.1,for dispensing to bowl through flush pipe.
227.1+,for dispensing to bowl through the water in flush tank.
464+,for a dry closet having a magazine containing granular material and means for discharging a portion to the bowl.
  
[List of Patents for class 4 subclass 224]    224Combined with flusher:
 This subclass is indented under subclass 223.  The dispenser acts in combination with and generally after the device which flushes out the bowl.
  
[List of Patents for class 4 subclass 225.1]    225.1Dispensing to overflow of flush tank:
 This subclass is indented under subclass 222.  Subject matter wherein the apparatus discharges a chemical into a structure which prevents spill over in the reservoir, containing flush water used to wash out a closet bowl, by discarding the excess to the bowl for the purpose of disinfecting, deodorizing, cleaning, or coloring the water.
  
[List of Patents for class 4 subclass 226.1]    226.1Dispensing to or dispenser in flush pipe:
 This subclass is indented under subclass 222.  Subject matter wherein the apparatus discharges a chemical into a conduit which conducts flush water from a source of water under pressure to a closet bowl of a flush closet for the purpose of disinfecting, deodorizing, cleaning, or coloring the water.
  
[List of Patents for class 4 subclass 227.1]    227.1Dispensing to water in flush tank:
 This subclass is indented under subclass 222.  Subject matter wherein the apparatus discharges a chemical into the reservoir of water, used to wash out a closet bowl, of a flush closet for the purpose of disinfecting, deodorizing, cleaning, or coloring the water.
  
[List of Patents for class 4 subclass 227.2]    227.2Float actuated:
 This subclass is indented under subclass 227.1.  Subject matter wherein the dispenser is activated by a member that is buoyed by and which uses the rise or fall of the water level in the flush tank to discharge a chemical into the water of the flush tank for the purpose of disinfecting, deodorizing, cleaning, or coloring the water.
  
[List of Patents for class 4 subclass 227.3]    227.3Valve:
 This subclass is indented under subclass 227.2.  Subject matter wherein the float actuates a device to control the flow of the chemical from the dispenser into the water of the flush tank for the purpose of disinfecting, deodorizing, cleaning, or coloring the water.

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222, Dispensing,   subclasses 67+ for a float that follows the material level and actuates a dispenser.
  
[List of Patents for class 4 subclass 227.4]    227.4Water level actuated:
 This subclass is indented under subclass 227.1.  Subject matter wherein the dispenser is activated by the rise or fall of the water level in the flush tank to discharge the chemical into the water of the flush tank for the purpose of disinfecting, deodorizing, cleaning, or coloring the water.

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227.2+,for a float actuated dispenser.
  
[List of Patents for class 4 subclass 227.5]    227.5Static dispenser (i.e., no moving part):
 This subclass is indented under subclass 227.4.  Subject matter wherein the dispenser is a passive structure (having no moving parts) that is actuated by the rise or fall of the water level in the flush tank to discharge a chemical into the water of the flush tank for the purpose of disinfecting, deodorizing, cleaning, or coloring the water.

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227.1,for a static dispenser that constantly saturates the flush water with a chemical.
  
[List of Patents for class 4 subclass 227.6]    227.6Having a flush water dosing chamber:
 This subclass is indented under subclass 227.5.  Subject matter wherein the dispenser has an enclosed space for the chemical to mix with the flush water received from the flush tank to form a concentrated solution that is to some degree isolated from the water in the flush tank during the quiescent period between flushes and is then discharged during flushing or filling for the purpose of disinfecting, deodorizing, cleaning, or coloring the water.
  
[List of Patents for class 4 subclass 227.7]    227.7With a siphon:
 This subclass is indented under subclass 227.6.  Subject matter wherein the dispenser uses the suction created by the weight of falling water to discharge the concentrated solution in the dosing chamber into the flush water of the flush tank for the purpose of disinfecting, deodorizing, cleaning, or coloring the water.
  
[List of Patents for class 4 subclass 228.1]    228.1Dispensing to air from closet:
 This subclass is indented under subclass 222.  Subject matter wherein the apparatus is disclosed for use with a closet to discharge a chemical into the atmosphere surrounding the closet for the purpose of disinfecting or deodorizing the air.

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220+,for a sewer ventilator provided with disinfecting apparatus.
  
[List of Patents for class 4 subclass 229]    229Chemical holder in seat:
 This subclass is indented under subclass 222.  The closet seat is provided with a chemical holder.
  
[List of Patents for class 4 subclass 230]    230Chemical holder in lid:
 This subclass is indented under subclass 222.  The closet-seat lid is provided with a chemical holder.

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470,
  
[List of Patents for class 4 subclass 231]    231Chemical holder suspended in bowl:
 This subclass is indented under subclass 222.  The holder is suspended in the closet bowl.
  
[List of Patents for class 4 subclass 232]    232Chemical chamber formed in bowl:
 This subclass is indented under subclass 222.  The closet bowl is constructed with a chamber for chemicals.
  
[List of Patents for class 4 subclass 233]    233Seat and cover treating:
 This subclass is indented under subclass 222.  Means are provided for washing, cleaning or disinfecting the seat or cover, or both.
  
[List of Patents for class 4 subclass 234]    234SEAT AND LID:
 This subclass is indented under subclass 222.  The combination of a closet seat with its lid.

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237,for seats, 242, for covers and 251, for operators.
  
[List of Patents for class 4 subclass 235]    235Plural seats:
 This subclass is indented under subclass 234.  More than one seat is provided for the closet.

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239,
  
[List of Patents for class 4 subclass 236]    236Hinges:
 This subclass is indented under subclass 234.  The invention resides in means for hinging both the seat and lid.

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240,for seat hinges.

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16, Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, etc.),   subclass 365 for other hinges for pivotally connecting three or more members.
  
[List of Patents for class 4 subclass 237]    237SEAT:
 This subclass is indented under the class definition.  The structure of the closet seat.

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234,for seats and covers combined, and 98 and 217.
  
[List of Patents for class 4 subclass 238]    238Subclosure, seat operated:
 This subclass is indented under subclass 237.  Closures for the hole in the seat operated by movement of the seat when occupied.

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485,
  
[List of Patents for class 4 subclass 239]    239Superposed:
 This subclass is indented under subclass 237.  The seat is one adapted to be placed over the closet seat, either for sanitary reasons or for the use of children, or is adapted to be employed on a vessel.

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235,for a closet bowl having more than one seat.
245.1+,for a sanitary seat cover.
246.1+,for an opener or closer for a closet seat or lid.

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297, Chairs and Seats,   subclasses 188.09+ for a seat having a receptacle of general utility thereunder, and subclasses 250.1+, for a seat detachably connected to a subjacent seat. An apertured seat having means to connect it to a subjacent apertured seat is classified in this class (4).
  
[List of Patents for class 4 subclass 240]    240Hinges:
 This subclass is indented under subclass 237.  The invention resides in the hinging of the closet seat.

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236,and 241.

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16, Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, etc.),   subclasses 221+ for hinges of general application.
  
[List of Patents for class 4 subclass 241]    241Counterbalanced or spring biased:
 This subclass is indented under subclass 237.  Means for counterbalancing or causing a seat to be swung upward, generally by a weight or spring.

SEE OR SEARCH THIS CLASS, SUBCLASS:

248,
  
[List of Patents for class 4 subclass 242.1]    242.1LID:
 This subclass is indented under the class definition.  Subject matter comprising a cap that closes the opening of a seat or a closet bowl of the closet.

SEE OR SEARCH THIS CLASS, SUBCLASS:

234,for a lid combined with a seat.

SEE OR SEARCH CLASS:

297, Chairs and Seats,   subclasses 219.1+ for a connected pad or cover (e.g., a slipcover).
  
[List of Patents for class 4 subclass 243.1]    243.1MECHANISM POSITIONS COVER ON SEAT:
 This subclass is indented under the class definition.  Subject matter comprising a machine that places a shield on a seat having an opening to a closet bowl and blankets the seat rim leaving the opening clear for the purpose of providing user access to the closet and a sanitary surface upon which to sit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

244.1+,for a device that dispenses a sanitary cover.
245.1+,for a sanitary cover.

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226, Advancing Material of Indeterminate Length,   subclasses 120+ for a mechanism that intermittently moves material.
242, Winding, Tensioning, or Guiding,   subclasses 550+ for a machine for unwinding elongated material and subclasses 590+ for a coil holder.
  
[List of Patents for class 4 subclass 243.2]    243.2Tubular type cover:
 This subclass is indented under subclass 243.1.  Subject matter wherein the mechanism is of the type that uses a hose shaped shield that encloses the rim of the seat and may have a longitudinal slot to enable it to be slipped over the seat"s rim to provide a sanitary surface upon which to sit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

245.2,for a tubular shaped cover for seat.
  
[List of Patents for class 4 subclass 243.3]    243.3Single continuous roll of flat covers:
 This subclass is indented under subclass 243.1.  Subject matter wherein the mechanism is of the type that uses only one sheet of flexible material having a row of consecutive shields formed thereon and wound into a tubular form so that successive shields are positioned on the seat providing a sanitary surface upon which to sit.
  
[List of Patents for class 4 subclass 244.1]    244.1COVER DISPENSER:
 This subclass is indented under the class definition.  Subject matter comprising an apparatus for the disbursement of a shield to blanket the rim of a closet seat while leaving the opening in the seat clear for user access to the closet while sitting upon a sanitary surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

243.1+,for a dispenser also having means to place a sanitary cover upon the seat of a closet.
245.1+,for a sanitary cover.

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221, Article Dispensing,   appropriate subclasses for a general article dispensing mechanism.
226, Advancing Material of Indeterminate Length,   subclasses 120+ for a mechanism that intermittently moves material and especially 127+ for a manual material-mover (e.g., a dispenser) mechanism.
242, Winding, Tensioning, or Guiding,   subclasses 550+ for a machine for unwinding elongated material and subclasses 590+ for a coil holder.
  
[List of Patents for class 4 subclass 244.2]    244.2Continuous roll:
 This subclass is indented under subclass 244.1.  Subject matter wherein the device uses only one sheet of flexible material having a row of consecutive shields formed thereon and wound into a tubular form so that a single shield may be extracted to blanket the rim of a closet seat while leaving the opening in the seat clear for user access to the closet while sitting upon a sanitary surface.
  
[List of Patents for class 4 subclass 244.3]    244.3Pad mounted on seat:
 This subclass is indented under subclass 244.1.  Subject matter wherein the device uses shields stacked up on top of each other, aligned and mounted to the closet seat so that an old shield may be removed and a new shield exposed, and blankets the closet seat rim leaving the opening clear to provide user access to the closet while sitting upon a sanitary surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

245.3+,for means to mount a cover on a seat.
  
[List of Patents for class 4 subclass 245.1]    245.1COVER FOR SEAT:
 This subclass is indented under the class definition.  Subject matter comprising an article manually placed over or upon a seat of a closet to protect the seat or to aid the user (e.g., comfort, boost, or sanitation) and leave the opening in the seat clear to provide a user access to the closet.
(1) Note. A cover provides for the opening in a seat while a lid closes off the seat and its opening.

SEE OR SEARCH THIS CLASS, SUBCLASS:

239,for a seat adapted to be placed over a closet seat.
243.1+,for a mechanism that positions a sanitary cover on a seat of a closet.
244.1+,for a sanitary cover dispenser.

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297, Chairs and Seats,   subclasses 219.1+ for a connected pad or cover (e.g., a slipcover).
  
[List of Patents for class 4 subclass 245.2]    245.2Tubular type:
 This subclass is indented under subclass 245.1.  Subject matter wherein the cover is hose shaped to enclose the rim of the closet seat and may have a longitudinal slot to enable it to be slipped over the seat"s rim which leaves the opening in the seat clear to provide the user access to the closet.
(1) Note. This does not include a cover that envelopes the entire seat.

SEE OR SEARCH THIS CLASS, SUBCLASS:

243.2,for a mechanism that positions a tubular sanitary cover on the seat of a closet.
  
[List of Patents for class 4 subclass 245.3]    245.3Securing means:
 This subclass is indented under subclass 245.1.  Subject matter wherein the cover has means that may be separate from or a part of the cover to hold it to the closet seat and leave the opening in the seat clear to provide the user access to the closet.

SEE OR SEARCH THIS CLASS, SUBCLASS:

243.1+,for a mechanism that positions and holds a cover to a seat.
244.3,for covers stacked up on top of each other, aligned and mounted to the seat.
245.2,for a cover structure that is inherently secure by enclosing the seat rim.
  
[List of Patents for class 4 subclass 245.4]    245.4Adhesive:
 This subclass is indented under subclass 245.3.  Subject matter wherein the securing means is a gummed or sticky surface that holds the cover to or in alignment with the closet seat and leaves the opening in the seat clear to provide the user access to the closet.
  
[List of Patents for class 4 subclass 245.5]    245.5Peripheral:
 This subclass is indented under subclass 245.3.  Subject matter wherein the securing means extends substantially around the inner or outer rim of the closet seat to secure the cover to the seat and leaves the opening in the seat clear to provide the user access to the closet.

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242.1,for a peripheral securing means for a lid covering.
  
[List of Patents for class 4 subclass 245.6]    245.6Specific material:
 This subclass is indented under subclass 245.1.  Subject matter wherein the cover is disclosed as being made out of a definite substance (e.g., paper, plastic, rubber or cloth) and leaves the opening in the seat to provide the user access to the closet.
(1) Note. This does not include an article which as disclosed as being made out of a generic substance (e.g., a "flexible", "disposable", or "destructible" material).
  
[List of Patents for class 4 subclass 245.7]    245.7Plastic or rubber:
 This subclass is indented under subclass 245.6.  Subject matter wherein the cover is disclosed as made out of plastic or rubber and leaves the opening in the seat clear to provide the user access to the closet.

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Dig. 8,,for a rubber seat.
  
[List of Patents for class 4 subclass 245.8]    245.8Paper:
 This subclass is indented under subclass 245.6.  Subject matter wherein the cover is disclosed as made out of paper and leaves the opening in the seat clear to provide the user access to the closet.

SEE OR SEARCH THIS CLASS, SUBCLASS:

243.1+,for a mechanism that positions a paper cover on a seat.
244.1+,for a paper cover dispenser.
  
[List of Patents for class 4 subclass 245.9]    245.9Having dependent member in closet bowl:
 This subclass is indented under subclass 245.8.  Subject matter wherein the cover has a portion of itself hanging down into the bowl and leaves the opening in the seat clear to provide the user access to the closet.
(1) Note. This dependent member may serve a purpose such as preventing the user from contacting the inside of the closet bowl, protecting the inside of the closet bowl from urination or defecation, or as drag anchor to pull the rest of the cover into the closet bowl when it is flushed.
  
[List of Patents for class 4 subclass 246.1]    246.1OPENER OR CLOSER FOR A CLOSET SEAT OR LID:
 This subclass is indented under the class definition.  Subject matter comprising means to assist a user in moving that part of closet providing support and access for a user to the closet, and the cap; which are both articulated to the closet; from one position to another.

SEE OR SEARCH THIS CLASS, SUBCLASS:

241,for a seat having a counterbalancing weight or spring biasing means urging it to an upward position.
243.1,for a mechanism that moves a seat from one position to another when putting a sanitary cover on the seat.
  
[List of Patents for class 4 subclass 246.2]    246.2Fluid mechanism:
 This subclass is indented under subclass 246.1.  Subject matter wherein the means uses fluid as a source of power or to transmit force to assist the user in moving the seat or lid from one position to another.
  
[List of Patents for class 4 subclass 246.3]    246.3Lever operated opener:
 This subclass is indented under subclass 246.1.  Subject matter wherein the user actuates one end of a body having a fixed axis or fulcrum which is mechanically linked to the seat or lid and is manipulated by the user in moving the seat or lid from one position to another.
  
[List of Patents for class 4 subclass 246.4]    246.4Four bar link:
 This subclass is indented under subclass 246.3.  Subject matter wherein the mechanical link includes two members that are each connected to a stationary rotatable joint and have a rod connected to the members by rotatable joints, where one of the members is a lever manipulated by the user while the other member or rod is or is in contact with the seat or lid, so that the motion of the lever is transmitted by the mechanical link to move the seat or lid from one position to another.
  
[List of Patents for class 4 subclass 246.5]    246.5Using a seat or lid for a link:
 This subclass is indented under subclass 246.4.  Subject matter wherein the seat or lid is the other member or rod of the four bar link so that the motion of the lever is transmitted by the by the mechanical link to move the seat or lid from one position to another.
  
[List of Patents for class 4 subclass 248]    248BUFFERS AND DASHPOTS:
 This subclass is indented under the class definition.  Means for preventing injury to parts of a closet by means of a buffer or dashpot applied to the relatively moving parts.

SEE OR SEARCH THIS CLASS, SUBCLASS:

360,and 388+, for a dashpot controlled outlet valve.

SEE OR SEARCH CLASS:

188, Brakes,   subclasses 297+ for a dashpot or shock absorber or general utility.
  
[List of Patents for class 4 subclass 249]    249FLUSH-VALVE OPERATORS:
 This subclass is indented under the class definition.  The miscellaneous subclass for devices for operating flush valves or supply valves.

SEE OR SEARCH THIS CLASS, SUBCLASS:

405+,for flush valve actuator and linkage.

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137, Fluid Handling,   subclasses 624.11+ for programmer or time controlled valves of general utility.
222, Dispensing,   subclasses 59+ for cut-offs operated by rate of flow responsive mechanism.
251, Valves and Valve Actuation,   for valve actuators in general, particularly subclasses 12+ for fluid operated or retarded valves.
  
[List of Patents for class 4 subclass 250]    250Seat operated:
 This subclass is indented under subclass 249.  The valve is operated by movement of the seat.
(1) Note. See special structures in this class, subclasses 238, 408, 468, 473, and 486.
  
[List of Patents for class 4 subclass 251.1]    251.1DRIP CATCHER:
 This subclass is indented under the class definition.  Subject matter comprising means for collecting water trickling down from a flush closet such as a urinal, closet bowl or tank.

SEE OR SEARCH CLASS:

137, Fluid Handling,   subclasses 312+ for drip collecting means.
  
[List of Patents for class 4 subclass 251.2]    251.2For flush closet tank only:
 This subclass is indented under subclass 251.1.  Subject matter wherein the drip catcher is solely for use in collecting water trickling down from the flush closet tank.

SEE OR SEARCH THIS CLASS, SUBCLASS:

901,for a covering for a flush closet tank.
  
[List of Patents for class 4 subclass 252.1]    252.1FLUSH CLOSET BOWL SUPPORT, COUPLING, SEAL OR FASTENER:
 This subclass is indented under the class definition.  Subject matter comprising a means to bear or hold up, to join a waste pipe in fluid communication with, to prevent the escape of fluid from or to secure a flush closet bowl.

SEE OR SEARCH THIS CLASS, SUBCLASS:

643+,for a support for a sink.

SEE OR SEARCH CLASS:

285, Pipe Joints or Couplings,   for a pipe joint or coupling in general, and especially subclasses 56+ for a floor supported flush closet type and subclass 64 for a static building construction support.
  
[List of Patents for class 4 subclass 252.2]    252.2Support for a wall hung closet bowl:
 This subclass is indented under subclass 252.1.  Subject matter wherein the means to bear or hold up suspends, from a building partition, the flush closet bowl.
  
[List of Patents for class 4 subclass 252.3]    252.3Adjustable:
 This subclass is indented under subclass 252.2.  Subject matter wherein the wall hung closet bowl support is adaptable in the plane parallel to the wall to align a waste pipe with the discharge opening of the closet bowl or an intermediary coupling for the discharge opening of the closet bowl.
  
[List of Patents for class 4 subclass 252.4]    252.4Flange with aperture for fastener:
 This subclass is indented under subclass 252.1.  Subject matter wherein the coupling for the flush closet bowl, which provides for the fluid flow communication between the closet bowl discharge and the waste pipe, has a projecting rim with an opening or slot for a securing member to hold the coupling to the closet bowl.
  
[List of Patents for class 4 subclass 252.5]    252.5Having a seal:
 This subclass is indented under subclass 252.4.  Subject matter wherein the coupling having a flange has a gasket between the closet bowl discharge or waste pipe to prevent fluid from escaping from the waste pipe or the closet bowl.
  
[List of Patents for class 4 subclass 252.6]    252.6Seal structure detail:
 This subclass is indented under subclass 252.1.  Subject matter wherein significance is attributed to the claimed particulars of the means to prevent the escape of fluid between the coupling, the fastener or the flush closet bowl.

SEE OR SEARCH THIS CLASS, SUBCLASS:

252.1+,for the coupling, the fastener or the closet bowl disclosing a nominal seal structure.
  
[List of Patents for class 4 subclass 253]    253CLOSET-BOWL CLOSURES:
 This subclass is indented under the class definition.  Closures secured to the bowl to prevent its use.
  
[List of Patents for class 4 subclass 254]    254CLOSET HEAD, FOOT, AND BODY RESTS:
 This subclass is indented under the class definition.  Devices for resting the body or parts thereof when the closet is being used.

SEE OR SEARCH THIS CLASS, SUBCLASS:

185,

SEE OR SEARCH CLASS:

297, Chairs and Seats,   for a body rest for an occupant of a seat of that class, i.e., subclasses 391+ for headrest, subclasses 411.2+ for armrest, and subclasses 423.1+ for a knee-, leg-, or footrest.
  
[List of Patents for class 4 subclass 255.01]    255.01OBSTRUCTION REMOVER:
 This subclass is indented under the class definition.  Subject matter comprising apparatus specialized to clean or clear an obstacle within or clear an obstacle from a drain pipe of a sink, bath, or flush closet.

SEE OR SEARCH THIS CLASS, SUBCLASS:

694,for means to block the overflow preventing water from flowing into or gas escaping from the overflow.

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15, Brushing, Scrubbing, and General Cleaning,   subclasses 104.03+ for mechanical or gaseous pressure devices for hammering, cutting, scraping, loosening or flushing deposits from conduits, pipes or tubes; and subclasses 406+ for an air blast soot blower for tubing.
68, Textiles: Fluid Treating Apparatus,   subclasses 216+ for a hand held pounder with plunger.
134, Cleaning and Liquid Contact With Solids,   subclasses 22.11+ for internal surface treatment of pipe etc., subclass 24 for internal surface treatment of hollow work with movable fluid applying nozzle and/or with plugging or sealing of work passage or opening, subclass 166 for a conduit cleaner, subclass 167 for a conduit cleaner with movably or flexibly mounted spray or jet applying conduits or nozzle, subclass 168 for a conduit cleaner with a pump and movable nozzle, and subclass 169 for a conduit cleaner using a pump.
137, Fluid Handling,   subclass 240 for a system in which a material (e.g., a chemical or physical agent) different from the fluent material of the system is introduced to clean parts of the system.
138, Pipes and Tubular Conduits,   subclasses 89+ for a closure or plug for a pipe and subclass 90 for a closure or plug having means to introduce pressure.
239, Fluid Sprinkling, Spraying, and Diffusing,   subclass Digest 13 for a tube cleaner.
  
[List of Patents for class 4 subclass 255.02]    255.02Piston:
 This subclass is indented under subclass 255.01.  Subject matter wherein the apparatus uses a piston in fluid communication with the obstruction to agitate the fluid to clean or clear the obstruction within or clear the obstruction from the drain pipe of the sink, bath or flush closet.

SEE OR SEARCH THIS CLASS, SUBCLASS:

694,for means to block the overflow preventing water from flowing into or gas escaping from the overflow.

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417, Pumps,   appropriate subclasses for a pump of general utility, per se, which may be used to clear an obstruction but is not adapted for use on a bath, flush closet, sink or drain pipe.
418, Rotary Expansible Chamber Devices,   appropriate subclasses for a rotary expansible chamber pump, per se.
  
[List of Patents for class 4 subclass 255.03]    255.03With one way valve:
 This subclass is indented under subclass 255.02.  Subject matter wherein the apparatus has a device in the fluid communication with the piston and the obstruction to make the fluid flow in one direction to clean or clear the obstruction within or clear the obstruction from the drain pipe of the sink, bath, or flush closet.
  
[List of Patents for class 4 subclass 255.04]    255.04Connected to a source of external fluid under pressure:
 This subclass is indented under subclass 255.01.  Subject matter wherein the apparatus includes a conduit with one end connected to an external source of fluid under pressure while the other end is brought into fluid communication with an opening on the sink, bath or flush closet pipe to clean or clear the obstruction within or clear the obstruction from the drain pipe of the sink, bath, or flush closet.

SEE OR SEARCH CLASS:

285, Pipe Joints or Couplings,   subclass 8 for a slip-on coupling for a faucet.
  
[List of Patents for class 4 subclass 255.05]    255.05With force cup (e.g., a plunger):
 This subclass is indented under subclass 255.04.  Subject matter wherein the other end of the conduit has a flexible cup or head used to close the opening and flexed to provide additional fluid pressure to clear the obstruction from the drain pipe of the sink, bath or flush closet.
  
[List of Patents for class 4 subclass 255.06]    255.06With flow control valve:
 This subclass is indented under subclass 255.04.  Subject matter wherein the apparatus includes a device to control the flow of fluid between the external source of fluid under pressure to the obstruction, to clear the obstruction from the drain pipe of the sink, bath, or flush closet.
  
[List of Patents for class 4 subclass 255.07]    255.07With means to block or clear the overflow:
 This subclass is indented under subclass 255.04.  Subject matter wherein the apparatus includes means to close an overflow during obstruction removal (i.e. to prevent loss of fluid pressure) or is used to remove an obstruction from the overflow.

SEE OR SEARCH THIS CLASS, SUBCLASS:

255.01+,for another type of obstruction remover having means to block or clear the overflow.
694,for means to block the overflow preventing water from flowing into or gas escaping from the overflow.
  
[List of Patents for class 4 subclass 255.08]    255.08With head structure that grips drain opening or pipe:
 This subclass is indented under subclass 255.04.  Subject matter wherein the other end of the conduit has a gripping structure at its other end that fastens it to the drain opening or pipe to clear the obstruction from the drain pipe of the sink, bath, or flush closet.

SEE OR SEARCH THIS CLASS, SUBCLASS:

255.01+,for another type of obstruction remover having a head structure that grips the drain opening.
  
[List of Patents for class 4 subclass 255.09]    255.09With head structure that increases velocity or turbulence:
 This subclass is indented under subclass 255.04.  Subject matter wherein the other end of the conduit has a head designed to boost the rate of change or violence of the flow into the opening to clear the obstruction from the drain pipe of the sink, bath, or flush closet.
  
[List of Patents for class 4 subclass 255.11]    255.11Force cup (e.g., a plunger):
 This subclass is indented under subclass 255.01.  Subject matter wherein the apparatus includes a flexible cup that is placed over the opening and manually flexed to agitate fluid to clean or clear the obstruction within or clear the obstruction from the drain pipe of the sink, bath, or flush closet.

SEE OR SEARCH THIS CLASS, SUBCLASS:

255.01+,for other cup like structure having a force or sealing function.
  
[List of Patents for class 4 subclass 255.12]    255.12With one way valve:
 This subclass is indented under subclass 255.11.  Subject matter wherein the force cup has a device that will make the fluid flow in one direction to clean or clear the obstruction within or clear the obstruction from the drain pipe of the sink, bath, or flush closet.
  
[List of Patents for class 4 subclass 256.1]    256.1DEBRIS CATCHER FOR A FLUSH CLOSET, OR A CLEAN OUT PLUG:
 This subclass is indented under the class definition.  Subject matter comprising either a collector for a flush closet that intercepts miscellaneous foreign objects before they can clog a trap or sewer line; or an access with a fitted sealing cover for a sink, bath, or flush closet that provides an entrance to a trap or a sewer line.

SEE OR SEARCH THIS CLASS, SUBCLASS:

255.01,for an agitating obstruction remover that attaches to the clean out opening.
255.04,for an obstruction remover that attaches to the clean out opening.
286+,for a debris catcher or a plug for a sink.

SEE OR SEARCH CLASS:

138, Pipes and Tubular Conduits,   subclasses 89+ for a plug or closure relating to a pipe or pipe fitting.
220, Receptacles,   subclasses 200+ for a plug or closure having a more general use.
  
[List of Patents for class 4 subclass 258]    258SPITTOONS:
 This subclass is indented under the class definition.  Devices to receive and dispose of sputa or expectorations.
(1) Note. For ash receivers, see Class 131, Tobacco, subclasses 231+ Class 220 Receptacles, appropriate subclasses, particularly subclasses 501+ for a receptacle having intercommunicable compartments, and subclasses 910+ for cross reference art collections of table-top trash or ash containers.

SEE OR SEARCH CLASS:

126, Stoves and Furnaces,   subclass 32 for spittoon attachments to cooking stoves.
  
[List of Patents for class 4 subclass 259]    259Pocket:
 This subclass is indented under subclass 258.  Receptacles carried in a person"s pocket or attached to the person.
  
[List of Patents for class 4 subclass 260]    260Bar:
 This subclass is indented under subclass 258.  Spittoons for saloon bars.
  
[List of Patents for class 4 subclass 261]    261Disinfecting:
 This subclass is indented under subclass 258.  Spittoons provided with disinfecting apparatus.

SEE OR SEARCH THIS CLASS, SUBCLASS:

222+,for general disinfecting or chemical dispensing apparatus.
  
[List of Patents for class 4 subclass 262]    262Flushing:
 This subclass is indented under subclass 258.  Spittoons having means for washing away the sputa.
  
[List of Patents for class 4 subclass 263]    263Dental:
 This subclass is indented under subclass 262.  Spittoons specialized for the use of dentists.
  
[List of Patents for class 4 subclass 264]    264Rotary member:
 This subclass is indented under subclass 263.  Either the bowl or the plate in the bowl for receiving the sputa or the flush nozzle rotates.
  
[List of Patents for class 4 subclass 265]    265Hand pump:
 This subclass is indented under subclass 262.  The water is supplied by a hand pump.
  
[List of Patents for class 4 subclass 266]    266Flush valve and outlet valve:
 This subclass is indented under subclass 262.  The spittoon is provided with a water-supply valve and discharge valve cooperating in operation.
  
[List of Patents for class 4 subclass 267]    267Covered:
 This subclass is indented under subclass 258.  The spittoon is provided with a cover.
  
[List of Patents for class 4 subclass 268]    268Floor orifice:
 This subclass is indented under subclass 267.  The spittoon is located in a hole in the floor of a building, car, or vehicle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

275,
  
[List of Patents for class 4 subclass 269]    269Valved outlet:
 This subclass is indented under subclass 268.  The outlet is provided with a valve.

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266,and 276.
  
[List of Patents for class 4 subclass 270]    270Receptacle:
 This subclass is indented under subclass 268.  The spittoon has a closed bottom.

SEE OR SEARCH THIS CLASS, SUBCLASS:

269,and 277.
  
[List of Patents for class 4 subclass 271]    271Hand operated:
 This subclass is indented under subclass 267.  The cover is operated by mechanism actuated by hand.
  
[List of Patents for class 4 subclass 272]    272Pedal operated:
 This subclass is indented under subclass 267.  The cover is operated by a pedal.
  
[List of Patents for class 4 subclass 273]    273Two-part cover:
 This subclass is indented under subclass 272.  The cover consists of two similar parts conjoined.
  
[List of Patents for class 4 subclass 274]    274Flexible material and holder:
 This subclass is indented under subclass 267.  The spittoon is made of flexible material generally paper, and the holder has a cover.

SEE OR SEARCH THIS CLASS, SUBCLASS:

259,and 285.
  
[List of Patents for class 4 subclass 275]    275Floor orifice:
 This subclass is indented under subclass 258.  The spittoon is placed in a hole in the floor of the building or car.

SEE OR SEARCH THIS CLASS, SUBCLASS:

268,
  
[List of Patents for class 4 subclass 276]    276Valved outlet:
 This subclass is indented under subclass 275.  A valve controls the outlet of the spittoon.

SEE OR SEARCH THIS CLASS, SUBCLASS:

266,and 269.
  
[List of Patents for class 4 subclass 277]    277Receptacle:
 This subclass is indented under subclass 275.  The spittoon has a closed bottom.

SEE OR SEARCH THIS CLASS, SUBCLASS:

270,
  
[List of Patents for class 4 subclass 278]    278Agitator:
 This subclass is indented under subclass 258.  Means are provided for moving the part receiving the sputa into the liquid or for moving the liquid in the spittoon to wash the sputa down.
  
[List of Patents for class 4 subclass 279]    279Reversible:
 This subclass is indented under subclass 258.  The spittoon is provided with a plurality of inlet openings for the sputa and either one may be uppermost.

SEE OR SEARCH THIS CLASS, SUBCLASS:

280,281, 283, and 284, for different types of anti-spilling spittoons.
  
[List of Patents for class 4 subclass 280]    280Floor controlled valve:
 This subclass is indented under subclass 258.  The inlet is provided with a valve generally closed by a spring. The valve is opened by a member connected to it when the member comes into contact with the floor on which the spittoon rests.
  
[List of Patents for class 4 subclass 281]    281Gravity controlled valve:
 This subclass is indented under subclass 258.  The valve governing the inlet to the spittoon is normally open; but if the spittoon is tipped over the valve will close.

SEE OR SEARCH THIS CLASS, SUBCLASS:

284,
  
[List of Patents for class 4 subclass 282]    282Positively operated inlet valve:
 This subclass is indented under subclass 258.  The inlet valve is positively actuated.
  
[List of Patents for class 4 subclass 283]    283Trapped liquid:
 This subclass is indented under subclass 258.  The construction is such that if the spittoon is upset the liquid will be trapped and prevented from spilling.
  
[List of Patents for class 4 subclass 284]    284Gravity receptacle:
 This subclass is indented under subclass 258.  The receiver is mounted in a frame or holder, so that gravity will operate on the counter-weighted receptacle to keep it upright when the holder is overturned.

SEE OR SEARCH THIS CLASS, SUBCLASS:

279,
  
[List of Patents for class 4 subclass 285]    285Flexible material and holder:
 This subclass is indented under subclass 258.  The receptacle is made of flexible or paper material and is generally placed in a cup or holder.

SEE OR SEARCH THIS CLASS, SUBCLASS:

259,and 274.
  
[List of Patents for class 4 subclass 286]    286STRAINER, STOPPER, PLUG OR CLOSURE:
 This subclass is indented under the class definition.  The miscellaneous subclass for strainers, closures and stoppers, for basins, sinks, tubs or other specialized strainer or stopper structure classified in this class.
(1) Note. A stopper is distinguished from a valve by being bodily removable from the sink or bath structure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

256.1,for a debris catcher or clean out plug for a flush closet.
292,for strainers, per se, or if of general application, see search notes below.
295,for a closure or stopper that enters the waste outlet of a sink or bath.
652,for a sink or bath having a drain and strainer.

SEE OR SEARCH CLASS:

210, Liquid Purification or Separation,   especially subclasses 348+ for strainers of general application.
241, Solid Material Comminution or Disintegration,   subclass 32.5 for a comminuting apparatus including a sink drain stopper interlock and subclass 46.016 for a comminuting apparatus in combination with stopper or strainer in combination with a garbage disposal inlet.
  
[List of Patents for class 4 subclass 287]    287Combined strainer, plug, or valve:
 This subclass is indented under subclass 286.  The strainer is combined with a plug, valve or other closure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

693,for a drain valve or plug having the operating means inside sink or bath.
  
[List of Patents for class 4 subclass 288]    288Combined strainer and pipe coupling:
 This subclass is indented under subclass 286.  The strainer is combined with the coupling uniting the outlet pipe to the receptacle.
  
[List of Patents for class 4 subclass 289]    289Strainers in series:
 This subclass is indented under subclass 286.  The water passes through a plurality of strainers arranged in series.
  
[List of Patents for class 4 subclass 290]    290Strainer, receptacle:
 This subclass is indented under subclass 286.  The strainer is in the form of a dish or receptacle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

289,
  
[List of Patents for class 4 subclass 291]    291Depending:
 This subclass is indented under subclass 290.  The receptacle strainer is suspended in the outlet conduit of the receptacle tub, sink or basin.

SEE OR SEARCH THIS CLASS, SUBCLASS:

289,
  
[List of Patents for class 4 subclass 292]    292Strainer:
 This subclass is indented under subclass 286.  Consists of a single strainer.

SEE OR SEARCH THIS CLASS, SUBCLASS:

289,290, 291, and 650+.

SEE OR SEARCH CLASS:

210, Liquid Purification or Separation,   subclasses 348+ for strainers or filters of general utility.
  
[List of Patents for class 4 subclass 293]    293Closure:
 This subclass is indented under subclass 286.  Closures adapted to be placed over the outlet of the receptacle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

668+,for a condition responsive drain valve plug or closure.
671+,for a supply outlet combined with a drain valve plug or closure for a sink or bath.
679+,for a drain valve having a plug or closure.
  
[List of Patents for class 4 subclass 294]    294Disinfecting:
 This subclass is indented under subclass 293.  The closure is provided with disinfecting means for holding a disinfectant.

SEE OR SEARCH THIS CLASS, SUBCLASS:

222+,for a general disinfecting or chemical dispensing apparatus.
  
[List of Patents for class 4 subclass 295]    295Plugs:
 This subclass is indented under subclass 286.  The closure or stopper enters the outlet of the receptacle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

287,for a strainer combined with a plug, valve or other closure.
668+,for a condition responsive drain valve plug or closure.
671+,for a supply outlet combined with a drain valve plug or closure for a sink or bath.

SEE OR SEARCH CLASS:

215, Bottles and Jars,   subclasses 355+ for stopper type closures.
  
[List of Patents for class 4 subclass 300]    300Flush closet:
 This subclass is indented under the class definition.  Subject matter receptacle for receiving bowel material and/or a liquid handling means to assist the removal of the bowel material from the receptacle.
(1) Note. The liquid handling can be a rapid flow of liquid or liquid to assist the removal of the bowel material.
(2) Note. The liquid can have a gas, e.g., air, added to it, the gas is usually to save the amount of water used.
(3) Note. A subcombination of basic subject matter of this subclass and the indented subclasses that is specialized for use in a flush closet is proper for this subclass and the indented subclasses unless otherwise provided for in another class, e.g., tank outlet valve, however, a tank inlet valve is elsewhere. See Search notes below.
(4) Note. Patents issued prior to 1950 have not in all instances been classified by their claimed disclosure so the placement of these patents does not necessarily indicate lines of classification.

SEE OR SEARCH CLASS:

137, Fluid Handling,   for a tank inlet valve.
181, Acoustics,   subclasses 233+ for a fluid conducting motion silencer and especially subclass 234 for a flash closet type.
251, Valves and Valve Actuation,   for a tank inlet valve.
  
[List of Patents for class 4 subclass 300.1]    300.1With toilet tissue holder:
 This subclass is indented under subclass 300.  Subject matter which includes a toilet tissue receptacle combined with a flush closet or a portion thereof.
(1) Note. The portion of a flush closet includes a flush tank, a flush tank bowl, or a flush toilet seat.
(2) Note. Included are roll-type and sheet-type toilet tissue receptacles.

SEE OR SEARCH THIS CLASS, SUBCLASS:

443+,for receptacles and devices for washing the perineum region of the human body.
661,for devices not elsewhere classified to clean the perineum region with toilet tissue.

SEE OR SEARCH CLASS:

206, Special Receptacle or Package,   subclasses 389+ for roll or reel material.
242, Winding, Tensioning, or Guiding,   subclasses 564+ for a motor driven dispenser of wound material, and subclasses 590+ for a mounted dispenser for wound material.
312, Supports: Cabinet Structure,   subclasses 34.2 , 34.3, 34.4, 34.7, 34.8, and 34.18+ for continuous strip material.
  
[List of Patents for class 4 subclass 300.2]    300.2With bedpan rinser:
 This subclass is indented under subclass 300.  Subject matter including a water closet bowl and a water nozzle (a) built into the closet bowl, or (b) connected to part of the closet bowl"s water supply system, or (c) being separate from the closet bowl or the closet bowl"s water supply wherein the water from the nozzle washes a bedpan and the wash water from the bedpan empties into the water closet which can dispose of the waste water by flushing the waste water down the toilet drain.
(1) Note. The water closet may be structurally formed to support a bedpan in or on the closet for the purpose of cleaning the bedpan.

SEE OR SEARCH THIS CLASS, SUBCLASS:

450+,for bedpans and accessories for bedpans.
  
[List of Patents for class 4 subclass 300.3]    300.3With splash guard or water baffle:
 This subclass is indented under subclass 300.  Subject matter which includes a device to prevent or minimize splashing of fluids as a result of use of the water closet to direct the flow of water within the water closet.
(1) Note. Included are the baffle or the splash guard, per se.

SEE OR SEARCH THIS CLASS, SUBCLASS:

415,for water-saving devices used with flush closet tanks.

SEE OR SEARCH CLASS:

210, Liquid Purification or Separation,   subclass 285 for an embedded baffle in a particulate material type separator, and subclass 521 for superposed baffles in a gravitational separator.
239, Fluid Sprinkling, Spraying, and Diffusing,   subclasses 461+ for flow-deflecting means, particularly subclasses 518+ for a deflector and terminal flow element.
  
[List of Patents for class 4 subclass 301]    301Urinals only:
 This subclass is indented under subclass 300.  Subject matter having means to receive urine solely.
(1) Note. This and indented subclasses will take plural receptacles where one receptacle is for urine only.
(2) Note. For a supply tank and/or control means only for flushing a urinal, see search notes below.
(3) Note. This and indented subclasses provide for a urinal receptacle and flushing means or a receptacle adapted to be flushed with a liquid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

353+,for tanks and control means for flushing.
449+,for urinals which do not use a fluid flush.
  
[List of Patents for class 4 subclass 302]    302Flush actuation automatically responsive to condition:
 This subclass is indented under subclass 301.  Subject matter having means to cause a flushing device to operate when an automatic condition occurs.
(1) Note. Flushing means actuated by an indirect means, e.g., opening a door, lighting a light, is proper for this area, but if the flushing means is actuated by a person pushing an electric switch, lever, or button the patent is placed lower in the schedule.

SEE OR SEARCH THIS CLASS, SUBCLASS:

308,for a pedal actuated flush.
313,for automatic flush means of general use.
367,for fluid or electric actuated flush.
405+,for direct actuated flush means.
  
[List of Patents for class 4 subclass 303]    303Periodic flush:
 This subclass is indented under subclass 302.  Subject matter wherein the flushing device is actuated at recurrent intervals, e.g., as often as a certain condition is reached.
(1) Note. The periodic flush can take place after a direct flush.

SEE OR SEARCH CLASS:

137, Fluid Handling,   subclasses 396+ for a self-emptying tank periodically emptied in response to filling, and subclass 624.14 for self-cycling programmed valves.
  
[List of Patents for class 4 subclass 304]    304By radiant energy responsive means:
 This subclass is indented under subclass 302.  Subject matter wherein the flushing device is actuated by the breaking of radiant energy waves.
  
[List of Patents for class 4 subclass 305]    305By electric condition responsive means:
 This subclass is indented under subclass 302.  Subject matter wherein the flushing device is actuated by an electric current.
  
[List of Patents for class 4 subclass 306]    306Ventilated, i.e., noxious fume removal:
 This subclass is indented under subclass 301.  Subject matter including means for removing gases having a disagreeable odor.
(1) Note. The subject matter of this subclass is not intended to include only handling of air or gas which affects the flow of the flushing liquid or waste material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

209+,for general ventilation of this class type.
347+,for ventilation of odor from a bowl.
  
[List of Patents for class 4 subclass 307]    307Folding type:
 This subclass is indented under subclass 301.  Subject matter having structure to allow the urinal to be moved from an operative position to an inoperative position.

SEE OR SEARCH THIS CLASS, SUBCLASS:

312,for a folding bowl type.
  
[List of Patents for class 4 subclass 308]    308Pedal actuated flush:
 This subclass is indented under subclass 301.  Subject matter including a flushing device which is actuated by foot.

SEE OR SEARCH THIS CLASS, SUBCLASS:

249,for a flush actuator of the class type.
405+,for a flush actuator and a tank structure.

SEE OR SEARCH CLASS:

251, Valves and Valve Actuation,   subclass 295 for a pedal actuator.
  
[List of Patents for class 4 subclass 309]    309With disinfectant means:
 This subclass is indented under subclass 301.  Subject matter including means for disinfecting or deodorizing.
(1) Note. The disinfectant or deodorant may also be housed in a screen device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

222+,for a general disinfecting or chemical dispensing apparatus.

SEE OR SEARCH CLASS:

210, Liquid Purification or Separation,   subclasses 632 , 638, 660+, 696+, 702+, and 749+ for processes of chemical treatment for purification or separation, and subclasses 198.1+ for apparatus for purification or separation with additional treating material.
422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,   subclasses 1+ for a process to disinfect, preserve, deodorize or sterilize, and subclasses 243+ for apparatus to treat a solid article or material with a fluid chemical.
424, Drug, Bio-Affecting and Body Treating Compositions,   subclasses 40+ for a composition that is usually incompletely burned or at least has a chemical reaction to project the composition into the air as a smoke, mist, or aerosol, and subclasses 76.1+ for a deodorant, disinfectant, or olfactory desensitizer composition.
510, Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions,   for cleaning compositions having a particular shape or structure to adapt them for use, search subclasses 109+ for compositions tailored for a specific utility (e.g., toilet soap bars, including packages); for cleaning compositions of general utility, search subclasses 406 and 439 for packaged compositions, subclasses 382+ for antiseptic or biocidal compositions, and subclasses 440 and 447+ for shaped, barlike compositions.
  
[List of Patents for class 4 subclass 310]    310Vertical type:
 This subclass is indented under subclass 301.  Subject matter wherein the means to receive urine has a slab or wall that is substantially vertical with respect to the rest of the structure.
  
[List of Patents for class 4 subclass 311]    311Bowl type:
 This subclass is indented under subclass 301.  Subject matter wherein the means to receive urine is a hollow shaped receptacle open at the top.
  
[List of Patents for class 4 subclass 312]    312Folding type:
 This subclass is indented under subclass 300.  Subject matter having an arrangement for moving the closet from an operative position to an inoperative position, usually smaller.

SEE OR SEARCH THIS CLASS, SUBCLASS:

307,for a urinal type folding device.
  
[List of Patents for class 4 subclass 313]    313With automatic flush responsive means:
 This subclass is indented under subclass 300.  Subject matter including means to cause a flushing device to operate when an automatic condition occurs.
(1) Note. A person actuating an electric switch or other type lever or button device to cause a flush is not automatic and patents are placed lower in the schedule.

SEE OR SEARCH THIS CLASS, SUBCLASS:

302,for a urinal type automatic flush device.
405+,for manual type flush devices.
  
[List of Patents for class 4 subclass 314]    314With indicator:
 This subclass is indented under subclass 300.  Subject matter including means for informing the operation of some condition of the closet.

SEE OR SEARCH CLASS:

116, Signals and Indicators,   appropriate subclasses for mechanical signals or indicators.
340, Communications: Electrical,   appropriate subclasses for electric signals.
  
[List of Patents for class 4 subclass 315]    315With disposable container:
 This subclass is indented under subclass 300.  Subject matter having a receiver for waste material which is designed to be taken away from the closet.

SEE OR SEARCH THIS CLASS, SUBCLASS:

321,for a holding tank wherein the removal of waste material is by a positive means.
  
[List of Patents for class 4 subclass 316]    316Reduced gravity environment type:
 This subclass is indented under subclass 300.  Subject matter having an arrangement which will permit the closet to be operated at a lower pressure or near zero gravity.
  
[List of Patents for class 4 subclass 317]    317With recirculating means:
 This subclass is indented under subclass 300.  Subject matter including means to pump a liquid in a closed system and means for filtering the waste material so that the liquid can be used for another flush.
(1) Note. This system is self-contained and operation does not depend upon connection to an outside source of liquid after being charged or to a sewer system for discharge.
  
[List of Patents for class 4 subclass 318]    318Including specified filtering means:
 This subclass is indented under subclass 317.  Subject matter wherein the filter is a particularly described means to remove or separate solid particles, impurities, etc., from a liquid by passing it through a porous substance.
  
[List of Patents for class 4 subclass 319]    319With macerator:
 This subclass is indented under subclass 300.  Subject matter including means for breaking up a solid waste material into smaller particles.
(1) Note. The means for breaking up the solid waste material may be a pump, if the purpose of the pump is for dividing the waste material.

SEE OR SEARCH CLASS:

241, Solid Material Comminution or Disintegration,   appropriate subclasses for comminutors, per se.
  
[List of Patents for class 4 subclass 320]    320Including additional treatment:
 This subclass is indented under subclass 319.  Subject matter having additional means to modify the waste material.
  
[List of Patents for class 4 subclass 321]    321With holding tank:
 This subclass is indented under subclass 300.  Subject matter including a storage receptacle for waste material after discharge from the flush closet, and for subsequent positive waste material removal by external means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

315,for a storage receptacle which is bodily removed from the flush closet for the disposing of the waste material.
  
[List of Patents for class 4 subclass 322]    322And heater:
 This subclass is indented under subclass 321.  Subject matter including means for introducing heat to the tank for the purpose of warning, preventing freezing and/or sterilizing the contents of the tank.
  
[List of Patents for class 4 subclass 323]    323And valve for emptying:
 This subclass is indented under subclass 321.  Subject matter including means by which the flow of waste material from the tank may be started or regulated.
  
[List of Patents for class 4 subclass 324]    324Manual selection of the amount of flush:
 This subclass is indented under subclass 300.  Subject matter having means external of a tank by which an operator may flush the closet in a chosen operational mode and elements connected to a flush valve.
(1) Note. The elements inside the tank which may be adjusted for different flushes are elsewhere. See search notes below.
(2) Note. Included in this subclass is a mode where an operator actuates the flush and the flush is stopped by elements inside the tank. Another mode is where an operator must hold the flush actuator for the time the flush is required.

SEE OR SEARCH THIS CLASS, SUBCLASS:

249+,for flush valve actuators.
378+,for adjustable means inside a tank to change the flush cycle.
  
[List of Patents for class 4 subclass 325]    325Alternate unicyclic flush:
 This subclass is indented under subclass 324.  Subject matter wherein the manual means for selectively controlling the flush is an arrangement for releasing either substantially all or a preselected portion of a quantity of liquid held in a flush tank. Each release completes a cycle and the operator must start another cycle.
  
[List of Patents for class 4 subclass 326]    326Plural flush valves:
 This subclass is indented under subclass 325.  Subject matter having more than one flush valve wherein they are arranged for selectively releasing either all or a preselected portion of the water in the tank.

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16, Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, etc.),   subclass 365 for other hinges for pivotally connecting three or more members.
  
[List of Patents for class 4 subclass 327]    327In axial alignment:
 This subclass is indented under subclass 326.  Subject matter wherein the flush valves are positioned such that their axes are in alignment.
  
[List of Patents for class 4 subclass 328]    328Tank and bowl with plural connections, one being pneumatic:
 This subclass is indented under subclass 300.  Subject matter wherein there is more than one pipe between the tank and bowl, one being for gas or air.

SEE OR SEARCH THIS CLASS, SUBCLASS:

368+,for a tank with an outlet siphon which includes an air release pipe.
  
[List of Patents for class 4 subclass 329]    329Low profile tank and bowl:
 This subclass is indented under subclass 300.  Subject matter wherein the tank extends only a small distance above the top of the bowl or is even with the top of the bowl.
(1) Note. The water levels in the tank and bowl are substantially equal.
  
[List of Patents for class 4 subclass 330]    330Seat actuated flush:
 This subclass is indented under subclass 329.  Subject matter wherein the outlet valve is operated by elements connected to a seat.

SEE OR SEARCH THIS CLASS, SUBCLASS:

408+,for a seat actuated outlet valve of general use.
  
[List of Patents for class 4 subclass 331]    331Float controlled valve:
 This subclass is indented under subclass 329.  Subject matter having means in the tank to control a valve by a buoyant device.

SEE OR SEARCH CLASS:

137, Fluid Handling,   subclasses 386+ for liquid level responsive valves.
  
[List of Patents for class 4 subclass 332]    332Pressure flush:
 This subclass is indented under subclass 329.  Subject matter wherein the tank is hermetically sealed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

354+,for a pressure tank of general use.
  
[List of Patents for class 4 subclass 333]    333Normally empty tank:
 This subclass is indented under subclass 300.  Subject matter wherein the tank does not have liquid in it until a valve is actuated.
(1) Note. Usually the supply valve is open and the outlet valve is closed by common actuating means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

366,for a common actuating means for the supply and outlet valves.
  
[List of Patents for class 4 subclass 334]    334Pressure tank:
 This subclass is indented under subclass 333.  Subject matter wherein the tank is hermetically sealed and the air is compressed as the liquid fills the tank.

SEE OR SEARCH THIS CLASS, SUBCLASS:

354+,for a pressure tank where the liquid in the tank is at the same pressure as the liquid supply pressure.
  
[List of Patents for class 4 subclass 335]    335With seat actuated valve:
 This subclass is indented under subclass 334.  Subject matter including a seat which, when moved, operates a valve to supply liquid to the tank and/or operates the outlet valve from the tank.

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338+,for seat actuated valves where the tank is not under pressure.
408,for a seat actuated outlet valve.
  
[List of Patents for class 4 subclass 336]    336And siphon bowl:
 This subclass is indented under subclass 335.  Subject matter having a siphon discharged bowl to receive the liquid from an outlet valve of the tank.

SEE OR SEARCH THIS CLASS, SUBCLASS:

421+,for a siphon discharge bowl.
  
[List of Patents for class 4 subclass 337]    337And drain means:
 This subclass is indented under subclass 335.  Subject matter having means to drain the liquid from the tank supply and/or valves after a flush.

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339,for drain means where the tank is not under pressure.

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137, Fluid Handling,   subclass 302 for freeze protection means.
  
[List of Patents for class 4 subclass 338]    338With seat actuated valve:
 Subject matter under Class 333 including a seat which, when moved, operates a valve to supply liquid to the tank and/or operates the outlet valve from the tank.

SEE OR SEARCH THIS CLASS, SUBCLASS:

335+,for a seat operated valve where the tank is under pressure.
408,for a seat actuated outlet valve.
  
[List of Patents for class 4 subclass 339]    339And drain means:
 This subclass is indented under subclass 338.  Subject matter having means to draw the liquid from the tank supply line and/or valves after a flush.

SEE OR SEARCH THIS CLASS, SUBCLASS:

337,for drain means and a pressure tank.

SEE OR SEARCH CLASS:

137, Fluid Handling,   subclass 302 for freeze protection means.
  
[List of Patents for class 4 subclass 340]    340Plural receptacles:
 This subclass is indented under subclass 300.  Subject matter having more than one means for receiving liquid or a single means with more than one opening to receive the waste material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

461,for plural dry closets.
  
[List of Patents for class 4 subclass 341]    341Diverse:
 This subclass is indented under subclass 340.  Subject matter wherein the receptacles are different in shape or function, e.g., one for waste material and the other for welting paper, or the receptacles are different in size.
  
[List of Patents for class 4 subclass 342]    342Separate and distinct:
 This subclass is indented under subclass 340.  Subject matter wherein the receptacles are each set apart from each other and not joined together.
  
[List of Patents for class 4 subclass 343]    343Overhead tank with bowl:
 This subclass is indented under subclass 300.  Subject matter wherein the tank is mounted at a much higher level than the top of the bowl, and not supported by the bowl structure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

409,for an overhead tank.
  
[List of Patents for class 4 subclass 344]    344Siphon bowl:
 This subclass is indented under subclass 343.  Subject matter having a siphon discharge bowl to receive the liquid from an outlet valve of the tank.

SEE OR SEARCH THIS CLASS, SUBCLASS:

421+,for a siphon discharge bowl.
  
[List of Patents for class 4 subclass 345]    345Plural flush, preliminary or subsequent:
 This subclass is indented under subclass 300.  Subject matter wherein in addition to a main flush means there is provided an additional flush before or after the main, the additional flush is actuated by the operation of the main flush.
  
[List of Patents for class 4 subclass 346]    346Including plural compartments in tank:
 This subclass is indented under subclass 345.  Subject matter wherein the tank has more than one compartment.

SEE OR SEARCH THIS CLASS, SUBCLASS:

363,for plural compartment tanks of general use.
  
[List of Patents for class 4 subclass 347]    347Ventilated, i.e., noxious fume removal:
 This subclass is indented under subclass 300.  Subject matter including means for removing gases having disagreeable odor.
(1) Note. The subject matter of this subclass is not intended to include only handling of air or gas which affects the flow of the flushing liquid or waste material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

209+,for general ventilation of the class type.
306,for urinal type ventilation.

SEE OR SEARCH CLASS:

454, Ventilation,   for ventilating devices not peculiar to subject matter of this class, particularly subclasses 341+ for ventilating devices which exhaust stale air from a room.
  
[List of Patents for class 4 subclass 348]    348Bowl:
 This subclass is indented under subclass 347.  Subject matter wherein the gas removing means is connected to the bowl or an adjunct thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:

420+,for bowl structure.
  
[List of Patents for class 4 subclass 349]    349Unitary with flush supply to bowl:
 This subclass is indented under subclass 348.  Subject matter wherein some portion of the means providing liquid to flush the bowl also forms part of the gas removal means.
(1) Note. For purpose of this subclass, the liquid providing means is not deemed to include the tank.
  
[List of Patents for class 4 subclass 350]    350Unitary with discharge from bowl:
 This subclass is indented under subclass 348.  Subject matter wherein the gas removing means is connected to the discharge from the bowl.
  
[List of Patents for class 4 subclass 351]    351Trap or siphon:
 This subclass is indented under subclass 350.  Subject matter wherein the gas removing means is directly connected to a trap or siphon.
  
[List of Patents for class 4 subclass 352]    352Annular ventilator:
 This subclass is indented under subclass 348.  Subject matter wherein the gas removing means has an intake which includes a channel subtending a portion of the cross section of the bowl in a horizontal plane and is usually located below the rim.
  
[List of Patents for class 4 subclass 353]    353Tank only:
 This subclass is indented under subclass 300.  Subject matter wherein the fluid handling means includes structure for holding a flushing fluid.

SEE OR SEARCH CLASS:

137, Fluid Handling,   subclasses 386+ for float controlled supply valves for closet tanks, and subclasses 624.11+ for timer controlled flush valves.
251, Valves and Valve Actuation,   subclasses 12+ for flush closet valves.
  
[List of Patents for class 4 subclass 354]    354Pressure tank:
 This subclass is indented under subclass 353.  Subject matter wherein the tank is hermetically sealed and is to be filled with a fluid at the same pressure as the supply line.

SEE OR SEARCH THIS CLASS, SUBCLASS:

334+,for a pressure tank that is normally empty.
  
[List of Patents for class 4 subclass 355]    355Float released outlet valve:
 This subclass is indented under subclass 354.  Subject matter wherein an outlet valve is held open by a detent of other device and is released, to close, by a float.

SEE OR SEARCH THIS CLASS, SUBCLASS:

379,for delay means to close an outlet valve.
  
[List of Patents for class 4 subclass 356]    356Float outlet valve:
 This subclass is indented under subclass 354.  Subject matter wherein an outlet valve is buoyant or is held open by a buoyant device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

392,for an outlet valve connected to a float.
395+,for a float type outlet valve.
  
[List of Patents for class 4 subclass 357]    357Free floating:
 This subclass is indented under subclass 356.  Subject matter where in the float is not directly connected to the tank.

SEE OR SEARCH THIS CLASS, SUBCLASS:

396,for a free floating outlet valve.
  
[List of Patents for class 4 subclass 358]    358With guide (e.g., a cage):
 This subclass is indented under subclass 357.  Subject matter wherein the float is restrained for movement within a defined zone in the tank.

SEE OR SEARCH THIS CLASS, SUBCLASS:

397+,for an outlet valve and guide means.
  
[List of Patents for class 4 subclass 359]    359Valve held open by flow:
 This subclass is indented under subclass 354.  Subject matter wherein an outlet valve is held open by the liquid flow or pressure acting against a valve, piston, or diaphragm.

SEE OR SEARCH THIS CLASS, SUBCLASS:

397,for a flow responsive element to hold an outlet valve open.
  
[List of Patents for class 4 subclass 360]    360Dashpot controlled outlet valve:
 This subclass is indented under subclass 354.  Subject matter having retarding mechanism to control the closing of an outlet valve.

SEE OR SEARCH THIS CLASS, SUBCLASS:

388,for retarding mechanism for an outlet valve.
  
[List of Patents for class 4 subclass 361]    361Pneumatic or hydraulic adjustability:
 This subclass is indented under subclass 354.  Subject matter wherein the amount of liquid in the tank is controlled by means to change the fluid and/or air pressure in the tank.
  
[List of Patents for class 4 subclass 362]    362By air under pressure:
 This subclass is indented under subclass 354.  Subject matter wherein a gaseous medium is used to aid in expelling the liquid from the tank.
  
[List of Patents for class 4 subclass 363]    363With plural compartments:
 This subclass is indented under subclass 353.  Subject matter including more than one section for holding flushing fluid.
(1) Note. A series of tanks with a common connection is regarded as a tank with plural compartments.
(2) Note. Valves and floats which have sections for holding fluid for the purpose of controlling or actuating the flushing action are not regarded as subject matter of this subclass. The compartments must hold an appreciable amount for flushing fluid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

378+,for valves or floats which have means for holding a fluid.
415,for a tank designed to save fluid.
  
[List of Patents for class 4 subclass 364]    364Single tank with divider:
 This subclass is indented under subclass 363.  Subject matter wherein the compartments of the tank are formed by one tank and a partition in the tank.
  
[List of Patents for class 4 subclass 365]    365Pivotal compartment:
 This subclass is indented under subclass 363.  Subject matter wherein one of the compartments is mounted for turning about an axis.

SEE OR SEARCH CLASS:

222, Dispensing,   subclass 160 for a movably mounted supply container.
  
[List of Patents for class 4 subclass 366]    366With simultaneous common actuating means for supply and outlet valves:
 This subclass is indented under subclass 353.  Subject matter including a single means for moving an inlet and outlet valve at the same time to cause liquid to flow into and out of the tank at the same time.
(1) Note. If common means move an inlet and outlet valve but fluid does not flow from both at the same time, at actuation, the patents are in subclass 378.

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378+,for inlet and outlet valves opened and closed at the same time.
435+,for inlet and outlet valves actuated by common means in a bowl.

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137, Fluid Handling,   subclass 391 for liquid level sensing means (e.g., a float) which controls both the inflow and the outflow of a tank.
  
[List of Patents for class 4 subclass 367]    367By fluid or electrical means:
 This subclass is indented under subclass 366.  Subject matter wherein the means for moving the valves include pneumatic or hydraulic means or an electric device.
  
[List of Patents for class 4 subclass 368]    368With outlet siphon:
 This subclass is indented under subclass 353.  Subject matter including a flow passage comprising two branches or legs of unequal length by which a liquid can be transferred to a lower level over an intermediate elevation by the pressure of the atmosphere in forcing the liquid up the shorter branch or leg immersed in it while the excess of weight of the liquid in the longer branch or leg causes a continuous flow.

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328,for a tank with outlet siphon and a bowl.

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137, Fluid Handling,   subclasses 123+ for discharge type siphons.
  
[List of Patents for class 4 subclass 369]    369Including means to relieve trapped air:
 This subclass is indented under subclass 368.  Subject matter having means to reduce trapped air pressure, in the siphon, to initiate liquid flow through the siphon.

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137, Fluid Handling,   subclasses 136+ for periodic discharge siphons which include means for releasing trapped air for initiating the flow of liquid through the siphon.
  
[List of Patents for class 4 subclass 370]    370By releasing trapped air:
 This subclass is indented under subclass 369.  Subject matter wherein the air escapes into the atmosphere directly and lowers the pressure to cause liquid flow through the siphon.
(1) Note. If the air is forced out with the liquid or allowed to expand, the patents are not proper for this subclass.

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369,for means to force air out with the liquid.
371,for means to allow the air to expand.
  
[List of Patents for class 4 subclass 371]    371By raising trapped air housing:
 This subclass is indented under subclass 369.  Subject matter wherein the air pressure is lowered by moving the device holding the trapped air in an upward direction so as to allow the air to expand and initiate liquid flow through the siphon.

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368,for means to raise a housing covering a siphon where the raising causes a vacuum to cause liquid flow.
  
[List of Patents for class 4 subclass 372]    372Including means to immerse siphon:
 This subclass is indented under subclass 368.  Subject matter wherein at least a part of the siphon is movable so that a surge of liquid will fill the siphon when the siphon is moved below the normal liquid level in the tank to initiate flow through the siphon.
  
[List of Patents for class 4 subclass 373]    373Pump starter:
 This subclass is indented under subclass 368.  Subject matter where in the liquid is forced into the siphon by a piston or plunger which is in a cylinder and initiates fluid flow through the siphon.
(1) Note. The cylinder may be part of the siphon.

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375,for means to raise the overall fluid level in the tank.

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137, Fluid Handling,   subclasses 147+ for a pump to start liquid flow in a siphon.
  
[List of Patents for class 4 subclass 374]    374Jet starter:
 This subclass is indented under subclass 368.  Subject matter wherein a stream of liquid is discharged directly into the siphon to cause initiation of liquid flow.
(1) Note. The stream of liquid is other than the liquid in the tank.

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373,for liquid, from the tank, forced into the siphon by a pump.
  
[List of Patents for class 4 subclass 375]    375Including means to raise liquid level:
 This subclass is indented under subclass 368.  Subject matter having means to cause the upper surfaces of the liquid in the tank to be elevated above its normal level to cause initiation of liquid flow through the siphon.
(1) Note. If only a part of the upper surface of the liquid is raised, e.g., in bell housing, the patents are in subclasses 368+.
(2) Note. The liquid level is raised by not adding more liquid.

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368+,for raising only part of the liquid level.

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137, Fluid Handling,   subclass 145 for means to start a siphon by applying pressure to a liquid.
  
[List of Patents for class 4 subclass 376]    376Valve starter:
 This subclass is indented under subclass 368.  Subject matter having a flow control stopping means which, when open, initiates liquid flow through the siphon by induction.
  
[List of Patents for class 4 subclass 377]    377By moving siphon:
 This subclass is indented under subclass 376.  Subject matter wherein one leg or branch of the siphon is movable to cause the liquid flow by induction.
  
[List of Patents for class 4 subclass 378]    378With outlet valve:
 This subclass is indented under subclass 353.  Subject matter including a liquid flow control means to permit a quantity of flushing liquid to pass from the tank to the bowl. The flow control means includes a solid element movable from a position blocking the cross section opening of a liquid outlet pipe by covering or entering the outlet pipe, which position is referred to as the seated position of the valve.

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324,for a similar device having manual selection of the amount of flush liquid.
  
[List of Patents for class 4 subclass 379]    379With delay of valve closing:
 This subclass is indented under subclass 378.  Subject matter including means to maintain the valve in an open condition until some predetermined condition occurs.

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355,for a float released outlet valve in a pressure tank.
  
[List of Patents for class 4 subclass 380]    380By pressure of suction control of valve:
 This subclass is indented under subclass 379.  Subject matter wherein the movable element is held open by the direct application of pressure or suction to the movable element.

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407,for tank outlet valves actuated by pressure variation.
  
[List of Patents for class 4 subclass 381]    381By float releasable latch:
 This subclass is indented under subclass 379.  Subject matter wherein the valve is held open by a locking element upon flushing. The locking element is controlled by a float so as to be disabled by tank liquid level reaching a predetermined position.
  
[List of Patents for class 4 subclass 382]    382Tiltable or pivoted valve body:
 This subclass is indented under subclass 381.  Subject matter wherein the valve blocking element is moved from its seated position with a motion having a component other than parallel to the length of the outlet pipe at its opening. The element may turn about a fixed axis through a portion thereof.

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392+,for a swinging valve.
  
[List of Patents for class 4 subclass 383]    383With overflow through valve closure:
 This subclass is indented under subclass 381.  Subject matter including a tubular conduit mounted in and passing through the valve blocking element to conduct liquid above a predetermined level through the valve.

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390,for an overflow through a tank valve closure.
  
[List of Patents for class 4 subclass 384]    384Latched actuator:
 This subclass is indented under subclass 381.  Subject matter wherein the valve is held open by locking of an element of the actuating means in an appropriate position.
(1) Note. The valve stem of a discharge valve is not considered to be an element of the actuating means.
  
[List of Patents for class 4 subclass 385]    385By varying weight releasable latch:
 This subclass is indented under subclass 379.  Subject matter wherein the valve is held open by a locking element upon flushing. The locking element is controlled by an element, the weight of which varies in accordance with tank liquid level and which disables the locking element at a predetermined liquid level.
(1) Note. The weight may vary by displacement of the flushing fluid by the element, retention of fluid by the element, or drainage of the fluid from a receptacle type element.

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137, Fluid Handling,   subclass 134 for dumping tanks employed as starters for siphons, and subclass 396 for self-emptying tanks controlled by auxiliary dumping tanks.
  
[List of Patents for class 4 subclass 386]    386By shifting weight:
 This subclass is indented under subclass 379.  Subject matter having a weight movable in response to the level of liquid in the tank, which weight sequentially holds the valve open and then closes the valve in response to the falling liquid level during flush.

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363+,for a similar device in which the weight includes a liquid filled container.
  
[List of Patents for class 4 subclass 387]    387By flow responsive element in valve outlet:
 This subclass is indented under subclass 379.  Subject matter wherein a flow actuated element in the valve outlet prevents the valve from closing until the flow has stopped or decreased below a predetermined valve.

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359,for an outlet valve held open by flow in a pressure tank.
  
[List of Patents for class 4 subclass 388]    388By retarding mechanism, e.g., dashpot:
 This subclass is indented under subclass 379.  Subject matter having means to damp the motion of the valve blocking element into the seated position.

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360,for a dashpot controlled outlet valve in a pressure tank.

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188, Brakes,   subclasses 297+ for a dashpot of general use.
  
[List of Patents for class 4 subclass 389]    389With overflow through valve closure:
 This subclass is indented under subclass 388.  Subject matter including a tubular conduit mounted in and passing through the valve blocking element to conduct liquid above a predetermined level through the valve.

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390+,for an overflow through a tank valve closure.
  
[List of Patents for class 4 subclass 390]    390With overflow through valve closure:
 This subclass is indented under subclass 378.  Subject matter including a tubular conduit mounted in and passing through the valve blocking element to conduct liquid above a predetermined level through the valve.

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383,for a similar device in which the valve is held open by a float releasable latch.
389,for a similar device in which valve seating is delayed by a motion retarding mechanism.
  
[List of Patents for class 4 subclass 391]    391Float connected or float type valve:
 This subclass is indented under subclass 390.  Subject matter wherein either the valve is buoyant in the flushing liquid or is rigidly connected to a body buoyant in the flushing liquid.

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394,and 395+, respectively, for such devices including float connected and float type valves, respectively, without an overflow through the valve bodies.
  
[List of Patents for class 4 subclass 392]    392Swinging:
 This subclass is indented under subclass 378.  Subject matter wherein the valve is caused to follow a curved path by an element having one end attached thereto and its other end fixedly attached to the tank or structure element therein.

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382,for a swinging valve which is released by a float.
  
[List of Patents for class 4 subclass 393]    393Pivoted:
 This subclass is indented under subclass 392.  Subject matter wherein the element attached to the valve is rigid and is relatively rotatable about a fixed axis with respect to a stationary element.
  
[List of Patents for class 4 subclass 394]    394Connected to float:
 This subclass is indented under subclass 378.  Subject matter wherein a float is rigidly connected to the valve.

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356,for a float connected to a outlet valve in a pressure tank.
391,for an outlet valve having an overflow through the valve body.
  
[List of Patents for class 4 subclass 395]    395Float type:
 This subclass is indented under subclass 378.  Subject matter wherein the valve blocking element is buoyant in the flushing liquid.

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356,for float type outlet valve in a pressure tank.
391,for an outlet valve having an overflow through the valve body.
394,for an outlet having a float rigidly connected to the valve.
  
[List of Patents for class 4 subclass 396]    396Free floating during flush:
 This subclass is indented under subclass 395.  Subject matter wherein the valve blocking element has no element fixedly attached thereto and is returned to its seated position by suction of the liquid draining out through the valve seat.

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357,for a free floating outlet valve in a pressure tank.
398,for a free floating valve which has an element fixedly attached to it, or in a cage.
  
[List of Patents for class 4 subclass 397]    397Having seating guide:
 This subclass is indented under subclass 395.  Subject matter includes means to limit lateral valve motion as the valve approaches the seated position.

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358,for an outlet valve with a guide in a pressure tank.
393,for a pivoted outlet valve.
396,for a static guide means for a free floating outlet valve.
  
[List of Patents for class 4 subclass 398]    398Cage type:
 This subclass is indented under subclass 397.  Subject matter having an openwork structure or frame to confine the outlet valve to limit its lateral motion.

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358,for an outlet valve with a guide, e.g., cage in a pressure tank.
396,for a free floating outlet valve.
  
[List of Patents for class 4 subclass 399]    399Valve moves relative to guide through bottom of valve:
 This subclass is indented under subclass 397.  Subject matter having a guide extending upwardly from a valve seat, and the valve has an opening in the bottom which cooperates with the guide as it approaches the seated position.

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390,for a fixed guide through the bottom of a valve which may be an overflow pipe.
  
[List of Patents for class 4 subclass 400]    400Valve attached seating element enters discharge pipe:
 This subclass is indented under subclass 397.  Subject matter having a projecting element rigidly connected to and depending from the valve and positioned within the discharge pipe when the valve is in its seated position.
(1) Note. The term "projecting element" may refer to an element distinct from the valve body or may be a section of the valve body other than the seating surface.
(2) Note. A projecting element maintained in a stationary position from the discharge pipe and entering the valve is not classified in this subclass.

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399,for a valve with a stationary guide positioned in the discharge pipe.
  
[List of Patents for class 4 subclass 401]    401Plural static guides:
 This subclass is indented under subclass 397.  Subject matter having more than one stationary guide element.
  
[List of Patents for class 4 subclass 402]    402Having liquid receptacle open upwardly:
 This subclass is indented under subclass 395.  Subject matter wherein the valve has a recess on the top surface to hold liquid to cause the valve to seat.
  
[List of Patents for class 4 subclass 403]    403Hollow:
 This subclass is indented under subclass 395.  Subject matter wherein the valve body is formed with a cavity therein.
(1) Note. A cavity intended solely to receive solid material, including other mechanical elements is not, of itself, sufficient for placement in this subclass.

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397,for a similar device in which the valve also has a seating guide.
  
[List of Patents for class 4 subclass 404]    404Open at bottom:
 This subclass is indented under subclass 403.  Subject matter wherein the valve body has an area on the bottom where air or liquid can enter the cavity.
  
[List of Patents for class 4 subclass 405]    405Actuator:
 This subclass is indented under subclass 378.  Subject matter having particularly described means to effect operation of the flush valve.

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249+,for a general device for actuating a flush device without linkage.
  
[List of Patents for class 4 subclass 406]    406Electrical:
 This subclass is indented under subclass 405.  Subject matter wherein the actuator is energized by an electric current.

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302,for an automatic flush actuator which includes electric devices in a urinal system.
313,for an automatic flush actuator which includes electric devices in a stool system.
  
[List of Patents for class 4 subclass 407]    407Pneumatic or hydraulic:
 This subclass is indented under subclass 405.  Subject matter wherein the actuation is effected by a variation in fluid pressure or flow.

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302,for an automatic actuated flush device which includes pneumatic or hydraulic means.
367,for a device which simultaneously actuates a tank supply and flush valve.
  
[List of Patents for class 4 subclass 408]    408Seat actuated:
 This subclass is indented under subclass 405.  Subject matter wherein the valve is actuated by motion of a closet seat.

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335+,for a pressure tank where the valve is actuated by a seat.
338,for a normally empty tank where the valve is actuated by a seat.
411,for linkage external to the tank operated other than by a seat.
436,for a seat actuated valve in a bowl.
  
[List of Patents for class 4 subclass 409]    409With overhead tank:
 This subclass is indented under subclass 408.  Subject matter including a flush tank mounted above a bowl and not supported by bowl structure.

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343,for an overhead tank and a bowl.
  
[List of Patents for class 4 subclass 410]    410Button type:
 This subclass is indented under subclass 405.  Subject matter having an element mounted on and extending through the tank wall which is movable toward or away from the tank to cause a mechanism therein to actuate the valve.

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406,for a push button device which actuates an electrical device to cause a flush.
407,for a push button device which actuates a pneumatic or hydraulic device to cause a flush.
408+,for a push button device which actuates a flush valve by a seat.
  
[List of Patents for class 4 subclass 411]    411Portion of linkage external to tank:
 This subclass is indented under subclass 405.  Subject matter wherein the motion of a handle is transmitted to the flush valve by a mechanical linkage, a portion of which linkage is positioned externally of the tank.
(1) Note. For purposes of this classification, a handle, an extension thereof, or a flexible connection thereto are not considered portions of a linkage. However, a pivot or a connection between relatively movable elements are considered portions of a linkage, which located exteriorly of the tank, will cause placement in this subclass.

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408+,for linkage external to tank actuated by a seat.
  
[List of Patents for class 4 subclass 412]    412Including flexible linkage element in tank (e.g., chain or cord):
 This subclass is indented under subclass 405.  Subject matter wherein the valve is actuated by a mechanism including a mechanical linkage in the tank, which linkage includes a flexible force transmitting element such as a chain or cord.
  
[List of Patents for class 4 subclass 413]    413Including articulated rigid linkage:
 This subclass is indented under subclass 405.  Subject matter wherein the valve is actuated by a mechanism having a mechanical linkage in the tank, which linkage includes plural, relatively movable, rigid force transmitting elements.
  
[List of Patents for class 4 subclass 414]    414Having stationary pivot within tank:
 This subclass is indented under subclass 413.  Subject matter wherein an element of the linkage, other than a handle or shaft thereof, rotates about an axis which is fixed with respect to the tank.
  
[List of Patents for class 4 subclass 415]    415Water saver:
 This subclass is indented under subclass 353.  Subject matter having an arrangement for reducing the amount of liquid used in flushing.
  
[List of Patents for class 4 subclass 416]    416With lining:
 This subclass is indented under subclass 353.  Subject matter including a covering for the inner surface of the tank or a receptacle placed close to the tank inner surface to minimize tank sweating.
(1) Note. This subclass includes tank liners, per se.

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220, Receptacles,   subclasses 23.9 , 62.21, 574.3, 495.01+, and 908.1+ for a receptacle having a liner.
229, Envelopes, Wrappers, and Paperboard Boxes,   subclasses 117.27+ and 164.2 for a paperboard box having a lining.
  
[List of Patents for class 4 subclass 417]    417With connector or seal:
 This subclass is indented under subclass 353.  Subject matter including means to connect a tank and bowl together and/or means to prevent leakage of fluid between the tank and bowl.
  
[List of Patents for class 4 subclass 418]    418Cover or housing for connector or seal:
 This subclass is indented under subclass 417.  Subject matter having means to enclose the connector and/or seal.
  
[List of Patents for class 4 subclass 419]    419With support:
 This subclass is indented under subclass 453.  Subject matter including structure for holding the tank against the force of gravity.

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52, Static Structures (e.g., Buildings),   subclasses 262+ for spaced vertical supports with transverse member, e.g., floor on legs.
248, Supports,   appropriate subclasses for supports of more general application.