1. Machines or structures adapted to be completely or partially
sustained by the air (e.g., winged aircraft, helicopters, parachutes,
kites, balloons, etc.),
2. Machines or structures adapted to be propelled and guided
or stabilized through the air (e.g., projectiles with fins, guided
missiles, etc.),
3. Machines or structures adapted to be placed in an orbit
or which substantially operate outside the earth"s atmosphere
(e.g., satellites, space vehicles, etc.),
4. Subcombinations of the machines or structures of 1-3, above,
not classified elsewhere (guidance and control, aircraft structures,
etc.),
5. Devices ancillary to the use of the machines or structures
of 1-3 above, not classified elsewhere (e.g., mooring devices, etc.),
and
6. Processes or methods peculiarly related to 1-5 above and
not provided for elsewhere.
SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
This class excludes toy or model aeronautical devices unless
the invention is such that it also applies logically to full sized
devices for actual use in carrying persons or cargo. For toy or
model airplanes, etc., see Class 446, Amusement Devices: Toys,
subclass 56.
This class excludes motor vehicles for travel on land or water,
and which vehicles are supported above said land or water by a relatively
thin cushion of air between the vehicle and the land or water, such
cushion of air being generated by the motor vehicle (e.g., ground
effect machines). For a motor vehicle of the surface effect type,
see Class 180, Motor Vehicles, subclasses 116+.
This class provides, in subclasses 76+, the generic
subclass for the automatic steering of mobile craft in two or three
dimensions. See subclasses 175+ where the control apparatus
includes electrical devices or apparatus. See the search notes
to these subclasses for the other subclasses which provide for motion
and/or steering control and a statement as to the line
between the classes.
Arrangements of aircraft to permit their handling by hoists
are found in this class, subclass 1. For similar arrangements on
other articles, see Class 220, Receptacles, subclass 1.5+ and
Class 294, Handling: Hand and Hoist-Line Implements, subclass 74,
and indented subclasses.
Gas cells or balloon envelope distinguished only by the coating
on, or by the structure of the fabric or textile are placed in Class
428, Stock Material or Miscellaneous Articles, appropriate subclasses;
see especially subclasses 175+, 190, 193, and 196+ for
a single or plural layer sheet or web embodying mechanically interengaged
strands (e.g., weave or knit), and subclasses 411.1+ for
a composite, web or sheet characterized only by the composition
of the layers.
Ammunition and Explosives,
subclasses 337+ for parachute flares, subclass 387 for parachute-carried
drop bombs, subclass 405 for aerial mines, and subclasses 504+ for
parachute-containing projectiles.
Internal-Combustion Engines,
subclasses 41.56+ for devices for cooling internal combustion engines
by means of air including cowling devices for the engines to provide
for directing the cooling air against the engine parts to be cooled
and subclasses 41.63+ for combinations of impellers with
driving means are ordinarily classified in Class
Fluid Reaction Surfaces (i.e., Impellers), appropriate subclasses for impellers such as traction
propellers, pusher propellers, helicopter and freely rotating rotors
as well as these impellers combined with their driving means, whether
recited, per se, or in combination with such aircraft structure
as is necessary to mount the impellers.
Education and Demonstration,
subclass 111 , 186, and 239+ for devices for training
in the use of navigational instruments or for such devices when
combined with training devices for aircraft operation, per se.
This subclass is indented under the class definition. Compound aeronautical machines consisting of two or more
complete machines of the same or different types acting together
to provide a single result or to be mutually interdependent. This
subclass also includes aeronautical machines combined with complete land
or water vehicles, which may be separable from the aeronautical
machine for independent operation during its use as a land or water
vehicle.
(1)
Note. This subclass includes complete aeronautical machines
cooperating with other complete aeronautical machines to provide
landing or launching facilities on one machine for the other.
This subclass is indented under subclass 2. Compound aeronautical machines comprising two or more complete
machines of the same or different types, arranged in tandem, and attached
together so that one may tow or propel the others, or arranged to
cooperate to provide sustentation and propulsion.
Land Vehicles,
subclasses 400+ for miscellaneous vehicle trains, these subclasses
having draft devices, per se, even though disclosed solely for towing
one aircraft from another.
This subclass is indented under the class definition. Subject matter including means which operates inherently
to compensate for undesired changes in attitude or which operates
to affect the trajectory or course of an unmanned aerial missile.
(1)
Note. The term "missile" in the above definition
includes: (a): (1) a device explosively propelled through and from the
barrel of a gun or (2) a device carrying an explosive which explosive
when actuated either (a) detonates to destroy or damage the carrying
device, or (b) burns or combusts within the carrying device to (1)
release the products of combustion to the atmosphere, or (2) generate
a gas to eject an object or substance from the carrying device,
or (3) generate heat within the carrying device which damage or
partly damages the carrying device; (b) a device having a payload
and an attached reaction motor for propelling payload through the
earth"s atmosphere. The reaction motor comprises a means
for producing a motive fluid and a means for ejecting said fluid (see
1-8 Notes Class 60, Power Plants, subclasses 200.1+).
(2)
Note. This definition excludes aircraft which are sustained
by air. For such subject matter see this class, subclasses 4+.
(3)
Note. Where the "missile" is disclosed as
having utility for manned flight the patent is excluded under this
definition and is classified in this class, subclasses 75.1- 99.9.
(4)
Note. Where the "missile" (manned or unmanned)
is (1) disclosed as a body which is to be placed in orbit around
the earth (i.e., satellite) or (2) solely disclosed as a vehicle
for use in outer space interplanetary travel, it is classified in this
class, subclass 1.
(5)
Note. This definition excludes explosive devices designed
to be dropped from the air or watercraft on an objective below, known
as "drop bombs". Such subject matter is classified
in Class 102, Ammunition and Explosives, subclasses 382+.
(6)
Note. This definition excludes a missile having a payload
for display or amusement (e.g., fireworks or toy novelties) with
a reaction motor driven by the products of combustion. Pyrotechnic
rockets are classified in Class 102, Ammunition and Explosives,
subclasses 347+.
(7)
Note. This definition further excludes a pyrotechnic (firework
creating flash, noise or smoke) device of general utility having
a vane, a wing, parachute, balloon or propeller. Such subject matter
is classified in Class 102, Ammunition and Explosives, subclasses
335+ and 367+.
(8)
Note. This definition further excludes a rocket having a
toy, amusement or display (nonpyrotechnic) payload with a reaction
motor driven by other than products of combustion. Such a rocket
is classified in Class 446, Amusement Devices: Toys, subclass 56.
Data Processing: Vehicles, Navigation, and Relative
Location,
subclasses 3+ for computer systems for vehicle control or vehicle
condition indication and subclasses 200+ for computations
in the application of navigation.
This subclass is indented under subclass 3.1. Subject matter comprising means whereby the attitude or
the trajectory of the missile is controlled from a command source
originating at a point remote from the missile.
Electricity: Motive Power Systems, appropriate subclasses for remotely controlled electric
motors, particularly
subclass 16 for motors controlled by space transmitted electromagnetic
or electrostatic energy, subclass 128 for reciprocating motor and
subclass 460 for motors in general controlled by sound, supersonic waves
or vibration, subclass 471 for motors controlled by infra red or
heat waves and subclass 480, for motors controlled by radiant energy
(light waves).
This subclass is indented under subclass 3.11. Subject matter comprising a wire connected between a moving
missile and the command source and used to convey a signal to control the
attitude or the flight path of the missile.
This subclass is indented under subclass 3.11. Subject matter in which the missile is directed to a target
by a beam of electromagnetic wave energy which is transmitted from
the command source to the target.
Electricity: Motive Power Systems,
subclass 16 for electric motors supplied or controlled by space
transmitted electromagnetic or electrostatic energy (e.g., radio
waves).
Communications: Electrical,
subclasses 539.1 through 539.32for alarm systems including a radio link, subclass
825 for selective and remote electrical control systems, subclass 825.72
for remote control utilizing radio waves, and subclasses 870.01-870.44
for telemetering systems.
This subclass is indented under subclass 3.1. Subject matter wherein the trajectory or stability of the
missile is controlled by a command signal originating inside the
missile.
(1)
Note. The command signal inside the missile may depend upon
some source outside the missile which is radiating energy but which
is not varied for the purpose of influencing the missile. For example,
the source may be wave energy from the sun, the stars, the earth"s
magnetic field, etc.
Data Processing: Vehicles, Navigation, and Relative
Location,
subclasses 3+ for computing systems for vehicle control or vehicle
condition indication and subclasses 200+ for computations
in the application of navigation.
This subclass is indented under subclass 3.15. Subject matter in which means are provided for detecting
light waves (includes visible and infrared rays) and a communication
link is provided between the detecting means and the command source
in the missile.
Ammunition and Explosives,
subclass 384 for drop bombs having direction controlling means
which may include a detector sensitive to infrared or visible rays.
This subclass is indented under subclass 3.16. Subject matter in which the light rays are compared with
a record located inside the missile (e.g., a film strip or photograph).
Radiant Energy,
subclasses 548 and 559.01+ for optical or prephotocell systems
having a web, or a web strand in the optical path, and subclasses 555+ for
a record in the optical path.
This subclass is indented under subclass 3.15. Subject matter in which means are provided for detecting
radio waves and a communication link is provided between the detecting
means and the command source in the missile.
Communications: Directive Radio Wave Systems and
Devices (e.g., Radar, Radio Navigation), appropriate subclasses for radio wave communication systems,
especially
subclass 417 for direction finding receivers. See Class 343,
Communications: Radio Wave Antennas, subclasses 700+ for
radio wave antennas.
This subclass is indented under subclass 3.15. Subject matter in which automatic guidance is achieved by
means of self-contained automatic controlling devices that respond
to acceleration producing forces.
Electricity: Motive Power Systems,
subclasses 580+ for position servomechanisms for single axis vehicular guidance
systems, and subclasses 648+ for position servomechanisms responsive
to inertial, direction or inclination measuring instruments.
This subclass is indented under subclass 3.1. Apparatus wherein the missile is rotated about its longitudinal
axis during the flight of said missile for maintaining stability
by means on the missile which reacts with the atmosphere (e.g.,
fin, etc.) or a fluid reaction jet issuing from said missile.
(1)
Note. This definition excludes a "missile" where
the sole means to rotate it is the coaction between pregrooved rifling band
and a rifled barrel and the engraved grooves on the band are disclosed
for the purpose of reacting with the atmosphere to aid in the rotation
of the missile, such a missile is classified in Class 102, Ammunition
and Explosive Devices, along with conventional rifling bands which
may inherently perform the same function.
Ammunition and Explosives,
subclass 348 for pyrotechnic rockets having vane of fin structure
and subclass 339 for pyrotechnic rockets with means to cause rotation
of the rocket by gas discharge.
This subclass is indented under subclass 3.1. Subject matter where the stabilizing means is an external
aerodynamic surface mounted on the missile.
(1)
Note. Nominally recited fin structure on a missile is excluded
from this subclass, and is classified in the appropriate missile
subclass in Class 102, Ammunition and Explosives.
This subclass is indented under subclass 3.24. Subject matter wherein the stabilizing means as a unit is
movable along the longitudinal axis of the missile from a first
position to a second position.
This subclass is indented under subclass 3.27. Subject matter wherein the stabilizing surface rotates about
an axis perpendicular to an axis parallel to the longitudinal axis
of the missile.
This subclass is indented under the class definition. Miscellaneous aeronautical machines which ordinarily weigh
more than the air which they displace, and depend therefore on some aerodynamic
action for their sustentation. This includes combination types
not provided for below.
(1)
Note. This subclass also includes machines strapped directly
to the body of a person, but propelled by mechanical means.
This subclass is indented under subclass 4. Aeronautical machines sustained by aerodynamic action on
airfoils, having also provision for continuous or temporary additional
sustentation by buoyant gas.
(1)
Note. For airships partially sustained by airplane wings,
see this class, subclass 25.
This subclass is indented under subclass 4. Aeronautical machines having provision for sustentation
in part or entirely by aerodynamic action on airfoils in fixed relation
to the machines, having also provision for sustentation or vertical
lift by means of screw propellers arranged to develop a substantial component
of thrust in a vertical direction.
(1)
Note. For helicopters without airplane wings, see this class,
subclasses 17.11+.
(2)
Note. For lighter-than-air craft partially sustained by helicopter
propellers, see this class, subclass 26.
This subclass is indented under subclass 6. Aeronautical machines , which may be altered so that the
major sustaining agency is either the aerodynamic action upon airfoils
in fixed relation to the machine or the vertical component of thrust
developed by screw propellers. This includes machines which are
designed to be operated without change, either as airplanes or as
helicopters, and also machines in which some parts of their arrangement
are altered for this purpose.
(1)
Note. Aeronautical machines sustained at all times by both
airplane and helicopter action, but providing for slight variations
in the effect of one or the other sustaining agency, are classified
in this class, subclass 6.
This subclass is indented under subclass 4. Aeronautical machines having provision for sustentation
in part or entirely by aerodynamic action on airfoils in fixed relation
to the machines, and having also sustaining elements having radially
extending airfoil blades, the sustaining elements being rotatable
about substantially vertical axes by the reaction of the relative
wind on the airfoil blades.
(1)
Note. For machines having only auto-rotating wings for sustentation,
see this class, subclasses 17.11+.
(2)
Note. For the rotating sustaining wings, per se, see this
class, subclass 39.
This subclass is indented under subclass 4. Aeronautical machines having provision for sustentation
in part or entirely by aerodynamic action on airfoils in fixed relation
to the machines, having also provision for sustentation or vertical
lift by the downward thrust developed by rotating paddle wheels.
These paddle wheels may also provide a part or all of the forward
propulsion.
(1)
Note. For machines sustained by paddle wheels alone, see
this class, subclasses 19 and 20.
(2)
Note. For airships partially sustained by paddle wheels,
see this class, subclass 27.
This subclass is indented under subclass 4. Aeronautical machines having provision for sustentation
in part or entirely by aerodynamic action on airfoils in fixed relation
to the machines, having also provision for sustentation or vertical
lift by substantially cylindrical members rotating about substantially
horizontal axes and reacting with the relative wind to produce a
downward component of thrust.
(1)
Note. For machines sustained by cylindrical rotors alone,
see this class, subclass 21.
This subclass is indented under subclass 4. Aeronautical machines having provision for sustentation
in part or entirely by aerodynamic action on airfoils in fixed relation
to the machines, having also provision for sustentation or vertical
lift by the downward thrust developed by flapping or reciprocating
blades attached to the machines. These blades may also be the propelling
agents.
(1)
Note. For machines sustained by beating wings alone, see
this class, subclass 22.
(2)
Note. For lighter-than-air craft partially sustained by beating
wings, see this class, subclass 28.
(3)
Note. For beating wing construction, per se, see this class,
subclass 72.
This subclass is indented under subclass 4. Aeronautical machines having provision for sustentation
in part or entirely by aerodynamic action on airfoils in fixed relation
to the machines, having also provision for the sustention by the
reaction to the downward movement of restricted masses or jets by
air or other fluid, the forward propulsion of the machines may also
be derived from movement of the same or similar masses or jets of
air or other fluid.
This subclass is indented under subclass 12.1. Apparatus wherein the peripheral surface of either the aeronautical
machine or the airfoil therefor is substantially in the form of
a circle.
This subclass is indented under subclass 12.1. Apparatus wherein the aeronautical machine comprises separate
and distinct power plants or motive means, at least one of the motive
means being used solely for forward or horizontal propulsion and
at least one other motive means solely for lift or vertical propulsion.
This subclass is indented under subclass 12.1. Apparatus comprising an airfoil structure having an adjustable
power plant or motive means thereon to provide a variable directional
thrust to the machine, at least one component or direction of thrust
being capable of providing lift to the machine.
This subclass is indented under subclass 12.1. Apparatus wherein there is provided means on the aeronautical
machine adjustable to a position for deflecting the direction of
travel of exhaust fluid produced by the motive means, the deflector
means when positioned to deflect the exhaust fluid providing a vertical
or lifting force to the aeronautical machine for vertical or short
take-offs and landings (V/STOL).
This subclass is indented under subclass 12.1. Apparatus wherein the airfoil fixed to the aeronautical
machine is provided with an arched or other undulating configuration
for confining, channeling or otherwise affecting, at least in part,
the flow of sustention fluid therepast.
This subclass is indented under subclass 13. Aeronautical machines of the self-propelled airplane type
which carry an explosive or other destructive charge to be set off
or liberated by contact with a distant target or by the meeting of
other desired conditions. These machines are ordinarily unmanned
and are therefore controlled either automatically or by such means as
radiant energy from a remote point. This subclass also includes
devices of this same type performing useful rather than destructive
work at a distance.
This subclass is indented under subclass 13. Aeronautical machines of the airplane type propelled by
the reaction to the movement of restricted masses or jets of air
or other fluids.
(1)
Note. For the automatic control of aircraft and other mobile
devices, see the search notes below.
This subclass is indented under subclass 13. Aeronautical machines of the airplane type, having no mechanical
propulsion and deriving their forward motion entirely from a component
of the force of gravity along the line of flight.
(1)
Note. For disclosure of similar machines, propelled by manual
operated means, see this class, subclass 64.
This subclass is indented under subclass 4. Aircraft which are sustained in the air by a thrust produced
by one or more wings or blades rotating about a substantially vertical
axis.
(1)
Note. This type of aircraft is technically called a gyroplane
and includes (1) helicopters, wherein the wings or blades are normally
mechanically driven, and (2) the autorotating wing type, wherein
the wings or blades rotate because of the aerodynamic forces acting
on them due to the forward speed of the aircraft, the forward motion
being caused by a tractor impeller, jet or other propulsion means.
(2)
Note. The rotary wing may be provided with modifying means
whereby the thrust is varied in intensity or direction.
(3)
Note. This subclass and indented subclasses provide for a
rotary wing which is significantly combined with the aircraft, i.e.,
when more structure of the aircraft is recited than is necessary
to mount the propulsion or steering means. In the following instances,
the aircraft is considered to be significantly recited: (a) Mounting
or attachment of a motor or power plant to the frame or body in
a particular relation or location with respect to the body. (b)
The impeller drive gearing or shaft is located in a specific relation
to the aircraft.
This subclass is indented under subclass 17.11. Gyroplanes in which means responsive to a condition of the
aircraft controls the rotary wing system.
(1)
Note. The condition responsive means of this subclass comprises
separate and distinct controlling means and does not include those
rotary wings which are automatically controlled by a condition of
the rotary wing itself, e.g., free blade type.
(2)
Note. The mere forward motion of the aircraft is not significant
aircraft structure as set forth in (3) Note, subclass 17.11, this
class.
Fluid Reaction Surfaces (i.e., Impellers),
subclasses 27+ and 31+ for automatic controls for impellers where
no aircraft combination is claimed, especially subclass 40 for impeller
control responsive to relative medium flow velocity (e.g., vehicle speed,
etc.) and subclasses 103+ and 131+ for free blade-type
impellers. See (2) Note above.
This subclass is indented under subclass 17.11. Gyroplanes having means other than the rotor to allow lowering
of the aircraft or in which the rotor is adjustable to allow the
aircraft to be safely lowered.
This subclass is indented under subclass 17.11. Gyroplanes combined with (1) landing gear, (2) aircraft
mooring devices, (3) nonaerial propelling devices, and (4) nonaerial
steering means.
(1)
Note. The nonaerial propelling and/or steering means
of this subclass is directed to devices auxiliary to or other than
the aircraft rotor to effect propulsion and/or steering
while on land or water.
This subclass is indented under subclass 17.11. Gyroplanes combined with means in addition to the rotating
wing and operating during flight to (1) propel the craft, (2) counteract
the torque of the rotating wing, or (3) steer the aircraft.
(1)
Note. The steering means of this subclass, i.e., so-called
aerial steering, is directed to devices auxiliary to the rotating
wing of the aircraft to effect steering in flight. Such auxiliary
devices may include shiftable weights to change the center of gravity
of the craft or a rudder on the craft.
for auxiliary propulsion, counter-torque or steering
devices combined with a safety lowering device, and 17.17, for similar
subject matter combined with a landing, mooring or nonaerial propelling
or steering device.
Fluid Reaction Surfaces (i.e., Impellers),
subclasses 48+ and subclasses 147+ for steering by means
of a variation in the thrust forces produced by the rotor itself,
e.g., tiltable axis or collective pitch changes.
This subclass is indented under subclass 17.19. Gyroplanes in which the additional means is rotatable.
(1)
Note. This subclass includes those devices which include
a rotary as well as a nonrotary means for auxiliary propulsion,
countertorque or steering.
Fluid Reaction Surfaces (i.e., Impellers),
subclasses 120+ , for plural impellers which are relatively movable
and/or have different axes in which no more aircraft structure
is included than is necessary to mount the impellers. See (3) Note,
subclass 17.11, this class (244), for the line.
Fluid Reaction Surfaces (i.e., Impellers),
subclasses 120+ , for plural impellers which are relatively movable
and/or have different axes and in which only as much aircraft
structure is claimed as is necessary to mount the impelling and/or
steering means.
This subclass is indented under subclass 17.11. Gyroplanes in which the direction of lift of the impeller
is variable, either by a cyclic pitch control of the impeller thereby
tilting the virtual axis of the impeller or by tilting the real axis
of the impeller.
This subclass is indented under subclass 19. Aeronautical machines, in which the arrangement of the blades
of the paddle wheels is varied during the rotation of the paddle
wheel.
This subclass is indented under subclass 4. Aeronautical machines sustained by elements having cylindrical
members rotating about substantially horizontal axes and reacting
with the relative wind to produce a downward component of thrust.
(1)
Note. For machines having sustaining airfoils as wells as
sustaining cylindrical rotors, see this class, subclass 10.
This subclass is indented under subclass 4. Aeronautical machines sustained by the downward thrust developed
by flapping or reciprocating blades attached to the machines. These blades
may also be the propelling agents.
(1)
Note. For machines having fixed sustaining airfoils as well
as beating wings, see this class, subclass 11.
(2)
Note. For lighter-than-air craft sustained also by beating
wings, see this class, subclass 28.
(3)
Note. For beating wings, per se, see this class, subclass
72.
This subclass is indented under subclass 4. Aeronautical machines sustained by the reaction to the downward
movement of restricted masses or jets of air or other fluid. The
forward propulsion of the machines may also be derived from the
movement of the same or similar masses or jets of air or other fluid.
(1)
Note. For machines having fixed sustaining airfoils as well
as means for fluid sustentation, see this class, subclasses 12.1+.
(2)
Note. For airplanes, fluid propelled, see this class, subclass
15.
(3)
Note. For lighter-than-air craft partially sustained by fluid
reaction, see this class, subclass 29.
(4)
Note. For fluid propulsion and sustentation devices, per
se, see this class, subclasses 73 and 74.
This subclass is indented under the class definition. Miscellaneous aircraft which ordinarily have a total weight
less than or equal to that of the volume of air which they displace
and are therefore sustained by their buoyancy with respect to the
air.
This subclass is indented under subclass 24. Propelled aeronautical machines sustained by their buoyancy
relative to the air, having also provision for sustentation by aerodynamic action
on airfoils in fixed relation to the machines.
(1)
Note. In this subclass the machines are primarily lighter-than-air
craft with the fixed sustaining airfoils providing additional sustentation.
(2)
Note. Machines which are primarily airplanes but have provision
for carrying some lighter-than-air gas to diminish their weight
are found in this class, subclass 5.
This subclass is indented under subclass 24. Propelled aeronautical machines sustained by their buoyancy
relative to the air, having also provision for sustentation or vertical
lift by means of screw propellers arranged to develop a substantial
component of thrust in a vertical direction.
(1)
Note. For helicopters having also sustaining wings, see this
class, subclass 6.
(2)
Note. For helicopters without airplane wings, see this class,
subclasses 17.11+.
This subclass is indented under subclass 24. Propelled aeronautical machines sustained by their buoyancy
relative to the air, having also provision for sustentation or vertical
lift by the downward thrust developed by rotating paddle wheels.
These paddle wheels may also provide a part or all of the forward
propulsion.
(1)
Note. For paddle wheels on machines having also sustaining
wings, see this class, subclass 9.
(2)
Note. For machines sustained by paddle wheels alone, see
this class, subclasses 19 and 20.
This subclass is indented under subclass 24. Propelled aeronautical machines sustained by their buoyancy
relative to the air, having also provision for sustentation or vertical
lift by the downward thrust developed by flapping or reciprocating
blades attached to the machines. These blades may also provide
a part or all of the forward propulsion.
(1)
Note. For machines having fixed sustaining air foils as well
as beating wings, see this class, subclass 11.
(2)
Note. For machines sustained by beating wings alone, see
this class, subclass 22.
(3)
Note. For beating wing construction, per se, see this class,
subclass 72.
This subclass is indented under subclass 24. Propelled aeronautical machines sustained by their buoyancy
relative to the air, having also provision for sustentation by the
reaction to downward movement of restricted masses or jets of air
or other fluid. The forward propulsion of the machine may also
be derived from movement of the same or similar masses or jets of
air or other fluid.
(1)
Note. For machines having fixed sustaining airfoils as well
as means for fluid sustentation, see this class, subclasses 12.1+.
(2)
Note. For airplanes, fluid propelled, see this class, subclass
15.
(3)
Note. For machines sustained solely by fluid reaction, see
this class, subclass 23.
(4)
Note. For fluid propulsion and sustentation devices, per
se, see this class, subclasses 73 and 74.
This subclass is indented under subclass 31. Aircraft normally sustained by their buoyancy relative to
the air, having also provision for retarding their fall upon failure
of their buoyancy, by means of parachutes attached to or formed
from some part of their structure.
(1)
Note. This subclass includes those aircraft having propulsion
means disclosed, but in which the invention is the combination between
the gas bag and the parachute, or the conversion from one to the other.
This subclass is indented under subclass 31. Aircraft sustained by their buoyancy relative to the air,
restrained from free flight by ropes or cables connecting them to
some fixed or movable anchoring means on the ground or water.
This subclass is indented under the class definition. Subject matter comprising means to provide support, relative
to the air, for an aircraft to which it is attached.
This subclass is indented under subclass 34. Support providing means comprising an element, of the type
commonly called a wing, plane, or blade, having a surface designed
to be acted upon by a relatively moving stream of air to support
the aircraft, a leading edge upstream and a trailing edge downstream,
a theoretical chord line connecting the two edges, an upper surface
when viewed planwise from above the chord line, and a lower surface
when viewed planwise from below the chord line.
(1)
Note. This subclass contains airfoils in which the novelty
is in the shape of the individual airfoil, either in cross-section or
in plan view.
(2)
Note. The search should be continued in this class, subclass
45, which is devoted to the arrangement of airfoils, with respect
to each other or to the body upon which they are mounted, but which
contains many incidental disclosures of airfoils of unusual shape.
This subclass is indented under subclass 35. Sustaining airfoils rotatable or capable of being moved
in a rotary path with respect to the aircraft.
(1)
Note. For arrangements of autorotating airfoils on aircraft,
including hub structure for permitting autorotation, see this class,
subclasses 17.11+.
This subclass is indented under subclass 35. Subject matter having the relative arrangements between
a plurality of sustaining airfoils or between one or more airfoils
and the body or fuselage.
(1)
Note. The particular shape of individual airfoils is found
in this class, subclass 35.
This subclass is indented under subclass 45. Arrangements of sustaining airfoils having provision for
altering the arrangement at will or in response to changing conditions.
(1)
Note. Combinations of specific types of variable arrangement
individually classified below, are found in this subclass.
This subclass is indented under subclass 46. Sustaining airfoils so arranged that the dihedral angle
of the wing surfaces on opposite sides of the aircraft may be altered
at will or in response to changing conditions.
(1)
Note. Continue the search in this class, subclass 38.
This subclass is indented under subclass 46. Sustaining airfoils so arranged that the angle between their
chord line and the line of thrust of the aircraft may be altered
at will, or in response to changing conditions.
(1)
Note. Sustaining airfoils tilting from a horizontal to a
vertical plane together with similarly tilting propellers to change
from an airplane to helicopter operation are found in this class,
subclass 7.
This subclass is indented under subclass 46. Sustaining airfoils arranged so that they may be folded
to require less space in storage of the aircraft, or for similar
purposes.
(1)
Note. Airfoils which are folded or otherwise reduced in area
during flight to vary their sustaining effect, are found in this class,
subclass 218.
(2)
Note. Airfoil construction to provide for the detaching of
a portion of the airfoil is found in this class, subclass 124.
AIRCRAFT PROPULSION AND STEERING ON LAND OR WATER:
This subclass is indented under the class definition. Special devices not ordinarily used in steering or propelling
in flight, incorporated with aircraft structure and particularly
adapted to provide for steering and/or propelling the aircraft
on land or water or both.
(1)
Note. For ordinary propulsion devices, see this class, subclass
62, and indented subclasses.
(2)
Note. For steering by means of brakes either on land or water,
see this class, subclasses 111 and 112.
(3)
Note. For ordinary control devices, see this class, subclasses
75.1-99.9.
(4)
Note. For rudder bars used to control ordinary steering apparatus
and also to control brakes for steering, see this class, subclass
235.
(5)
Note. For composite air and land or water craft, having the
air sustaining means removable for conversion into operable land
or water craft, see this class, subclass 2.
This subclass is indented under subclass 51. Devices and arrangements in which the propelling agency
is the movement of restricted masses or jets or air or other fluid.
Fluid Sprinkling, Spraying, and Diffusing,
subclasses 127.1+ , 265.23 and 265.33+ for discharge nozzles
of reaction motors, disclosed on aircraft, and having means to vary
the direction of fluid stream discharge for steering the craft.
This subclass is indented under the class definition. Power plants or accessories thereto peculiar to aircraft
and incorporated with aircraft structure.
(1)
Note. Power plants, per se, are found in Class 60, Power
Plants.
(2)
Note. Starters for power plants of aircraft type are found
in Class 123, Internal-Combustion Engines, subclass 179.
(3)
Note. Devices for cooling internal combustion engines by
means of air are classified in Class 123, Internal-Combustion Engines,
mainly in subclasses 41.56+, particularly subclass 41.7.
This includes aircraft engine cowling or enclosure devices to provide
for directing a flow of air against the engine or accessory parts to
be cooled, and include so much of the aircraft structure as necessary
to support the engine, cowling, or enclosure, or to complete the
control of the flow of air through the cowling or enclosure. Broad recitation
in the claims of the relation of the profile or outline of the cowling
or enclosure to that of the adjacent aircraft structure is not sufficient
to exclude the patent from Class 123, nor will the patent be excluded
by specific recitation of airfoil or airflow characteristics of
the cowling or enclosure.
(4)
Note. Impellers combined with a motor are found in Class
416, Fluid Reaction Surfaces (i.e., Impellers).
This subclass is indented under subclass 53. The relative arrangement between power plants on aircraft
or between one or more power plants and the aircraft.
This subclass is indented under subclass 55. Aircraft power plants so arranged that the vertical angle
between the line of thrust developed by the power plant and the
horizontal axis of the aircraft may be varied at will or in response to
changing conditions.
(1)
Note. This subclass includes tilting power plants which carry
screw propellers. For tilting propellers alone, see this class,
subclass 66.
This subclass is indented under subclass 53. Subject matter providing the relative arrangement or mounting
of radiators and analogous devices on aircraft.
This subclass is indented under subclass 53. Devices for developing power either for the purpose of emergency
aircraft propulsion or for assisting in the propulsion or operation
of aircraft.
This subclass is indented under subclass 53. Devices and arrangements for propelling aircraft at high
altitudes, and devices peculiar to aircraft for permitting aircraft
to be propelled to high altitudes.
(1)
Note. For super-chargers in general, see Class 123, Internal-Combustion Engines,
subclasses 434+.
(2)
Note. For garments for aviators providing an oxygen supply,
see Class 128, Surgery, subclass 202.11.
(3)
Note. For arrangements providing breathable air and all sorts
of applications, see Class 128, Surgery, subclasses 200.24+.
(4)
Note. Search Class 454, Ventilation, subclasses 71+ for
means to automatically maintain the air in aircraft cabins under
pressure and subclasses 76+ for means to circulate air
through aircraft cabins, where characteristics of aircraft propulsion,
sustenation, or details of structure are not claimed.
This subclass is indented under subclass 53. Gearing and other means peculiar to aircraft for transmitting
power from a power plant to a driven element.
(1)
Note. For foot pedals, including double pedals, and their
associated mechanism for operating controls and brakes, see this
class, subclass 235.
(2)
Note. For gearing in general and other machine elements and
mechanisms, see appropriate subclasses in Class 74, Machine Element
or Mechanism.
This subclass is indented under subclass 53. Aircraft power plants adapted to use some part of the sustaining
gas or some other gas peculiarly adapted for airship use as fuel.
This subclass is indented under the class definition. Devices and arrangements for propelling aircraft in flight.
(1)
Note. For propellers used only to steer or stabilize aircraft,
see this class, subclass 92.
(2)
Note. For reaction motors, per se, capable of propelling
any type of vehicle, see Class 60, Power Plants.
(3)
Note. For the combination of a motor driven propeller, per
se, see Class 416, Fluid Reaction Surfaces (i.e., Impellers), appropriate
subclasses.
(4)
Note. Devices for cooling internal combustion engines by
means of air are classified in Class 123, Internal-Combustion Engines,
subclasses 41.56+, particularly subclass 41.7. This includes
cowling devices for the engines to provide for directing the cooling
air against the engine parts to provide for directing the cooling
air against the engine parts to be cooled. Combinations of impellers
with driving means are ordinarily classified in Class 416, Fluid
Reaction Surfaces (i.e., Impellers), various subclasses but such combinations
with modifications to assist in cooling the engine are classified in
Class 123, subclasses 41.63+.
for launching of aircraft claiming the combination
of a propulsive and/or lifting aircraft even though the
combination may exist for only a brief period of time such as may
be required to condition the launched aircraft to be self-sustaining.
This subclass is indented under subclass 62. Devices and arrangements for propelling aircraft, operated
entirely by human agency without the assistance of any power plant.
This subclass is indented under subclass 62. The arrangement relative to aircraft and the combination
with aircraft of devices using the effect of helical screws rotating
in air for propelling aircraft.
This subclass is indented under subclass 65. Aircraft screw propellers so arranged that the vertical
angle between their line of thrust and the horizontal axis of the
aircraft may be varied at will or in response to changing conditions.
This subclass is indented under subclass 65. Arrangement of aircraft screw propellers of the long helix
type, in which the blades extend for substantially a full pitch
length or more along the hub members.
This subclass is indented under subclass 65. Fixed or static aircraft structure arranged to reduce the
rotary motion of the slip-stream of screw propellers on aircraft.
This subclass is indented under subclass 62. The arrangement relative to aircraft and the use on aircraft
of devices using the thrust developed by rotating paddle wheels
for propelling aircraft.
(1)
Note. Continue the search in this class, subclasses 9, 19,
20, and 27.
This subclass is indented under subclass 62. The arrangement relative to aircraft and the combination
with aircraft of devices using the thrust developed by elements
moving back and forth over substantially the same path for propelling
aircraft. These elements usually have provision for reducing their
resistance to motion in one direction.
This subclass is indented under subclass 62. Devices and their arrangement relative to aircraft for using
the thrust produced by flapping wings for propelling aircraft.
(1)
Note. Continue the search in this class, subclasses 11, 22
and 28.
This subclass is indented under subclass 62. The arrangement relative to aircraft and the combination
with aircraft of devices using the reaction to the movement of restricted
masses or jets of air or other fluid for propelling aircraft.
(1)
Note. Continue the search in this class, subclasses 12.1+,
15, 23, and 29.
This subclass is indented under the class definition. A device or arrangement directed to and limited to the controlling
of an aircraft in flight.
(1)
Note. This subclass provides for control elements as distinguished
from control surfaces, such as a leading edge flap, which are provided
for elsewhere. See the search notes below for the location of control
surfaces, per se.
Power Plants, appropriate subclasses for actuating devices including
controls and especially
subclass 528 for shape memory and piezoelectric type devices.
Ships,
subclass 21.1 , 23, and 24 for torpedoes with means to control
the steering and/or motion of the torpedo, and subclass
25 for torpedoes with automatic means to keep the torpedo at a predetermined
depth below the surface, and subclasses 144 through 172 for miscellaneous
devices for controlling the direction and/or speed of a
ship.
Motor Vehicles,
subclasses 167 through 169for a motor vehicle provided with means for controlling
its operation which is responsive to electromagnetic radiation,
magnetic force, or sound waves received from a source, or reflected
from an object or surface, which is located apart from the vehicle;
and subclass 170 through 179 for a motor vehicle provided with means
which is responsive to the speed of the vehicle for maintaining its
speed at, or preventing it from exceeding, a particular value.
Electricity: Motive Power Systems, appropriate subclasses for electric motor systems. See
the notes in
subclass 175 of Class 244 for the line between this class and
Class 318.
Data Processing: Vehicles, Navigation, and Relative
Location,
subclasses 3 through 18for computing systems for vehicle control or vehicle condition
indication and subclass 200-226 for computations in the application
of navigation.
This subclass is indented under subclass 75.1. Devices and systems for automatically controlling aircraft
along a predetermined course or in response to changing conditions.
This includes aircraft arranged to automatically maintain stable
equilibrium.
(1)
Note. For similar subject matter for controlling missiles
continue the search in this class, subclasses 3.1+.
(2)
Note. These are the generic subclasses for the steering of
dirigible craft automatically in two or three dimensions. See subclass
175 for a statement as to the line between the various vehicle and motor
classes and for the classes which provide for electrically controlled
or actuated steering for mobile craft.
Ships,
subclasses 21.1 and 23+ for torpedoes with automatically
actuated steering mechanism; see subclass 24 where the control mechanism includes
a gyroscope, and subclasses 144+ for miscellaneous devices, including
the automatically actuated devices for changing the direction or speed
of a ship.
Data Processing: Vehicles, Navigation, and Relative
Location,
subclasses 3+ for computing systems for vehicle control or vehicle
condition indication and subclasses 200+ for computations
in the application of navigation.
This subclass is indented under subclass 76. Subject matter in which the device or system includes a
pneumatic or hydraulic system that automatically generates a control
signal for controlling the aircraft.
(1)
Note. This subclass does not provide for the mere use of
hydraulic or pneumatic apparatus to actuate a control surface in response
to an automatic signal, but a hydraulic or pneumatic apparatus that forms
part of the structure responsible for the automatic operation of
the control means.
This subclass is indented under subclass 78.1. Subject matter in which the fluid system includes a pure
fluid device for amplifying an input signal.
(1)
Note. Devices known in the art as "pure fluid devices" or
"fluid amplifiers" and which act to control or vary high energy flows
by relatively low energy flow or fields are included here. These
devices rely upon the phenomenon known as the Coanda effect which
occurs when a jet of fluid is injected into a wide container and
due to some disturbance in flow or shape of the container the jet
stream moves to one wall or other of the container and continues
to flow along that wall. As long as the flow is not otherwise disturbed
the flow remains "locked" onto the wall of the container.
This subclass is indented under subclass 76. Systems for automatically controlling aircraft, operated
in response to the action of a pendulous weight or analogous device.
This subclass is indented under subclass 76. Devices and arrangements for operating aircraft control
systems in response to conditions peculiar to the landing of aircraft,
as, for example, the contact of some member with the ground or water.
This subclass is indented under subclass 76. Devices and arrangements for operating aircraft control
systems automatically in response to variations in air forces on
vane members.
This subclass is indented under subclass 75.1. Auxiliary airfoils and their arrangements with respect to
each other or to fixed portions of aircraft, for steering and stabilizing.
This subclass is indented under subclass 75.1. The arrangement of vertical surfaces with respect to aircraft,
for stabilizing purposes. These surfaces are usually fixed.
This subclass is indented under subclass 75.1. Movable or variable weights on aircraft for steering or
stabilizing.
(1)
Note. In this subclass the weights themselves are the controlling
agencies. For pendulous weights connected to operate control members,
see the search notes below.
This subclass is indented under subclass 93. Arrangements for the storage and release of heavy material
on aircraft for controlling relative buoyancy or stability.
This subclass is indented under subclass 93. Devices on aircraft for producing heavy material for ballast
purposes. An example is the production of water-ballast from exhaust
gases to replace the weight of fuel used.
This subclass is indented under subclass 96. Devices and arrangements for controlling lighter-than-air
craft by changing the buoyancy of all or part of the craft with
respect to the surrounding air.
(1)
Note. Devices for compressing or expanding one or more gas
cells to alter their buoyancy, are found in this subclass.
This subclass is indented under subclass 75.1. Subject matter in which the device or arrangement includes
a movable portion of the fuselage or means to provide specific control
of air flow about the fuselage.
(1)
Note. This subclass includes pivoted nose portions or devices
that affect the flow about the nose.
This subclass is indented under subclass 75.1. Subject matter in which the complete wing is moved to effect
control of the entire aircraft.
(1)
Note. This does not provide for the mere movement of a flap
or change of angle of attack of the wing, but the longitudinal or
lateral movement of the wing to effect a change in direction of
flight.
This subclass is indented under subclass 75.1. Subject matter in which the control of the aircraft is effected
by the deployment of a device (e.g., a parachute) that changes the
wind resistance of the aircraft to effect an in-flight control of
the aircraft beyond mere braking during landing.
(1)
Note. An aircraft in which deployment of a parachute from
a particular location on the aircraft to pull the aircraft out of
a spin condition is classified here.
This subclass is indented under subclass 75.1. Subject matter in which the control of the aircraft involves
(1) means for manipulating (e.g., positioning) a control element
(e.g., control surface) or (2) static structure for supporting a control
element, the means for manipulating or the static structure operating
to prevent or limit vibration (i.e., flutter) of the control element.
This subclass is indented under subclass 75.1. Subject matter including a control surface mounted on and
adjustable relative to another control surface.
This subclass is indented under subclass 75.1. Subject matter including a specific connection between
the device or arrangement for controlling an aircraft (e.g., pilot
control, autopilot) and a controlled element (e.g., a control surface).
This subclass is indented under subclass 99.2. Subject matter in which the specific control connection
has plural control transmission paths each capable of operation
in the absence of any of the others.
This subclass is indented under subclass 99.2. Subject matter in which the control connection includes
a fluid system (e.g., hydraulic) that transmits forces to the controlled
element through a fluid.
This subclass is indented under subclass 99.5. Subject matter including details of an arrangement of a
source of pressure for the fluid system as it relates to the structure
of the aircraft.
(1)
Note. For placement here, specific aircraft structure that
includes part of the pressure source must be claimed or the pressure
source must be specially adapted for association with an aircraft (e.g.,
a pressure source particularly constructed to fit within a wing).
This subclass is indented under subclass 99.5. Subject matter in which the fluid system includes a specific
non-linear actuator having a specific relation to the aircraft.
(1)
Note. For example, the control connection may include a rotary
actuator that forms the hinge of a flap of a wing and moves the
flap relative to the wing.
This subclass is indented under subclass 99.2. Subject matter in which the connection or actuator is formed
at least in part of a material that changes its shape in response
to an input (e.g., an electrical signal).
This subclass is indented under subclass 99.2. Subject matter in which the control connection is constructed
so as to mitigate the effect of a failure in some portion of the
control system or the controlled element.
This subclass is indented under the class definition. Devices and structural arrangements attached to aircraft
for supporting the aircraft on the surface of the land or water
and for taking the shock of landing.
Wheel Substitutes for Land Vehicles, for wheel substitutes. Class 305 takes wheel substitute
landing gear where no aircraft structure is claimed, or where only
a nominal relationship between the aircraft and landing gear is
claimed.
This subclass is indented under subclass 100. Landing gear designed to permit aircraft to land on either
land or water at will. This includes landing gear having one type
retractable to permit use of the other type.
This subclass is indented under subclass 100. Landing gear using wheels to support aircraft on the surface
of the ground. This subclass also includes mountings for wheels
and accessory devices, such as protecting fairings and arrangements
to cause the wheels to be rotating when they strike the ground.
(1)
Note. Continue the search in this class, subclasses 101 and
102.
This subclass is indented under subclass 103. Devices mounted on such devices as springs or other shock
absorbing members which reduce the shock of landing.
This subclass is indented under subclass 105. Devices for aircraft not ordinarily capable of landing on
water to permit safe landing on water in emergency.
(1)
Note. Detachable lifeboats attached to aircraft for emergency
use after landing on water are found in this class, subclass 1.
This subclass is indented under subclass 100. Devices and structural arrangements for supporting the tail
of aircraft in landing and on the surface of the land or water.
This subclass is indented under the class definition. Devices for slowing the progress of aircraft or for holding
or restraining them from movement.
(1)
Note. this subclass includes also devices separate from the
aircraft for retarding or restraining the aircraft. The search for external
retarding or arresting mechanism should be continued in this class, subclass
63, for devices intended primarily to launch but usable also to
retard.
(2)
Note. For devices retarding the progress of water supporting
member through the water, see Class 114, Ships, subclass 145.
This subclass is indented under subclass 110. Arrangement of devices for retarding the rotation of the
landing wheels.
(1)
Note. For operating mechanism for wheel brakes, operated
from the rudder pedals or from pedals attached to or adjacent the
rudder pedals, see this class, subclass 235.
This subclass is indented under the class definition. Arrangements of fields, runways or platforms to receive
aircraft in landing and to provide handling accommodations for aircraft.
Ships,
subclass 261 for ships and other floating structures particularly arranged
to receive aircraft in landing or to transport or harbor them, as
well as appliances and accessories peculiar to such ships and structures.
Communications: Directive Radio Wave Systems and
Devices (e.g., Radar, Radio Navigation),
subclasses 33+ and 350+ for systems of directive beams
of radio energy for guiding aircraft to their landing fields.
This subclass is indented under the class definition. Miscellaneous aircraft construction not provided for in
subclasses indented hereunder. This subclass includes the combination construction
of body and wings on aircraft and the connection between body and
wings. Loud speakers forming a part of the aircraft structure are
classified here.
(1)
Note. Hub construction for autorotating wings is found in
this class, subclasses 17.11+.
(2)
Note. For float and pontoon construction, per se, see Class
114, Ships, subclass 292.
Stock Material or Miscellaneous Articles, appropriate subclasses, for a stock material product in
the form of a single or plural layer web or sheet, and especially
subclasses 116+ for such a product embodying a honeycomb-like component.
This subclass is indented under subclass 117. Structure particularly designed to improve the efficiency
with which cargo, or a like load, is carried.
(1)
Note. A load which is like cargo includes a projectile on
military aircraft, another aircraft, equipment such as a camera,
or the like; the invention being limited to carrying efficiency.
(2)
Note. The original of the document to an invention to aircraft
provided with, or convertible to accommodation of both cargo and
personnel (passengers or crew) will be placed in this locus (subclasses
118.1+) and should be cross-referenced in subclasses 118.5+.
for cargo loading and unloading means exclusively
for aircraft, regardless of the features also, and frequently necessarily
involved in the subject matter of the instant and superior subclasses
(118.1+).
Refrigeration,
subclass 61 for a refrigeration system in a vehicle, such as aircraft,
effective by utilizing the motion of the vehicle; see, too, subclasses
239+ for other refrigeration systems with a vehicle feature.
Freight Accommodation on Freight Carrier, appropriate subclass for freight load accommodation of
such general utility as to be not necessarily restricted to such
a single type of freight carrier as an aircraft, even though the
disclosure is limited to such single use; e.g., retainer structure for
such a load bearer as a container is provided for under
subclasses 77+ . See, too, the class definition and notes therein
for more precise and more detailed definition of freight accommodation
that is required and detailed in the instant class (244) subclass 118.1
which is broad enough to include mere cargo plane construction.
This subclass is indented under subclass 118.1. Structure which, in flight, is an integral part of the aircraft
body and is further useful as a load container; i.e., which is of
a cubic capacity to define an entity comprising (a) wall structure which
complements or adds to the aircraft exterior configuration, and
(b) includes a volumetric capacity inward thereof to contain a load; the
entity being attachable to and separable from the remainder of the
aircraft body together with the load.
This subclass is indented under subclass 129.5. Structure comprising panel means attached to the aircraft
body to complement the in-flight external contour thereof and movable,
on ground, relative to the remainder of the body, to a position
whereat the distal edge of the panel means extends outwardly of
said remainder and contacts the ground for introduction and removal
of persons or a load into or out of the aircraft interior.
Freight Accommodation on Freight Carrier,
subclass 6 for a freight carrier (usually a rail car), a side
of which swings down to convert to a ramp onto which a vehicle,
as an article of freight, is rolled or placed and to which the vehicle
is secured so that when re-erected, the wall retains the vehicle
within the freight carrier for haulage; and subclass 93 for a dropside
(usually rail) car, a side section of which is tilted so as to convert
to a ramp for freight loading.
This subclass is indented under subclass 117. Structure particularly designed to improve the convenience
or efficiency with which passengers or flight personnel are carried.
for a device or arrangement designed to permit aircraft
passengers to be taken on board or discharged, that subclass (137.2)
being the applicable locus regardless of the presence of the passenger-carrying
features also, and frequently necessarily likewise involved, which
latter feature is subject matter for the instant and superior subclasses
(118.5+).
This subclass is indented under subclass 118.5. Structure in which the convenience or efficiency in carrying
persons is enhanced (a) by the structure or arrangement of interior
furnishing by which a person may be seated or may recline, or (b)
by interior aids or amenities attached to or directed toward such
furnishing or arrangement; e.g., attached or attachable dining service
structure, particularly focused lighting or ventilation.
principal subclass, for interior aids or amenities
directed toward cabin space rather than focused on the individual seat
or berth or arrangement thereof.
Static Structures (e.g., Buildings), appropriate subclasses for a static structure of
general application even though the claims recite "In an
airplane" or the like.
This subclass is indented under subclass 119. Construction of aircraft bodies or fuselages which are made
up in a plurality of separate sections and attached together.
This subclass is indented under subclass 119. Devices for protecting persons in or near aircraft from
danger or inconvenience.
(1)
Note. This subclass includes propeller guards, windshields,
crash pads, armor, etc., where they are essential parts of aircraft
structure.
(2)
Note. For armor attached to an otherwise complete aircraft,
the search should be continued in Class 89, Ordnance, subclass 36,
and see the notes to the definition of such subclasses.
Animal Husbandry,
subclass 770 for tethering a human being and subclass 771 for
a tether attached to a vehicle; see search notes of these subclasses for
further field of search.
Chairs and Seats, appropriate subclasses, for seats of general utility, particularly
subclasses 464+ , and especially subclasses 468+, for a
seat combined with a restraining harness and not involving significant
aircraft structure nor parachute arrangement.
This subclass is indented under subclass 117. Subject matter including details of the structure of an
airfoil.
(1)
Note. This subclass is primarily concerned with airfoil features
that relate to the strength and mass of an airfoil rather than airflow
characteristics.
This subclass is indented under subclass 123.1. Subject matter in which a substantial portion of the rigidity
of the airfoil is provided by internal air pressure.
This subclass is indented under subclass 123.1. Subject matter in which a substantial portion of the rigidity
of the airfoil is provided by sheet material having alternating
ridges and grooves for strength.
This subclass is indented under subclass 123.1. Subject matter in which the outermost layer of the airfoil
is formed of a structure having interconnected hollow, thin-walled,
substantially parallel cells.
This subclass is indented under subclass 123.1. Subject matter in which substantially all of the rigidity
of the airfoil is provided by the skin and its interior is substantially
open.
This subclass is indented under subclass 123.1. Subject matter in which the airfoil has an internal framework
comprising a network of interconnected members that provides substantially all
of the rigidity of the airfoil and in which none of the members
alone would be capable of providing this rigidity or even providing only
the vertical load supporting capacity of the airfoil.
This subclass is indented under subclass 123.2. Subject matter in which the internal framework is integrally
formed with the outer layer of the airfoil.
This subclass is indented under subclass 123.2. Subject matter in which the internal framework comprises
a plurality of members connected so as to form open areas between
the members.
This subclass is indented under subclass 123.1. Subject matter in which a substantial portion of the rigidity
of the airfoil is provided by a structure formed of a material other
than metal substantially filling its interior.
This subclass is indented under subclass 123.5. Subject matter in which the structure that provides the
rigidity has a plurality of interconnected hollow cells resembling
a honeycomb.
This subclass is indented under subclass 123.1. Subject matter in which substantially all of the rigidity
of the airfoil is provided by a hollow beam extending along the
length of the airfoil substantially from the root of the airfoil
to the tip, the beam having a generally rectangular cross section
and having upper and lower surfaces forming portions of the upper
and lower exterior surfaces of the airfoil.
This subclass is indented under subclass 123.1. Subject matter in which substantially all of the rigidity
of the airfoil transverse to its length (i.e., the dimension extending
generally from the root to the tip of the airfoil) is provided by
a beam (i.e., spar) extending along the length of the airfoil and
connected to the upper and lower portions of the skin.
(1)
Note. The spar need not provide all of the torsional rigidity
of the airfoil for placement in this subclass.
This subclass is indented under subclass 123.1. Construction of airfoil elements which are made up in a
plurality of separate sections and attached together.
Stock Material or Miscellaneous Articles, appropriate subclasses, for a stock material product in
the form of a single or plural layer web or sheet, and especially
subclasses 175+ , 190, 193, and 196+ for such a product embodying
mechanically interengaged strands or strand-portions.
Stock Material or Miscellaneous Articles, appropriate subclasses, for a stock material product in
the form of a single or plural layer web or sheet, and especially
subclasses 175+ , 190, 193, and 196+ for such a product embodying
mechanically interengaged strands or strand-portions.
This subclass is indented under subclass 117. Apparatus comprising miscellaneous structural parts or members
peculiar to aircraft and forming part of an airplane construction
not otherwise classified.
This subclass is indented under subclass 129.1. Apparatus wherein the aircraft comprises incendiary deterrent
means for at least minimizing the probability of an incendiary action occurring
either I, in the normal use of the aircraft, or II, at the time
of a crash or other sensed condition whereby to inhibit an incendiary
action on or about the aircraft.
This subclass is indented under subclass 129.1. Apparatus wherein the miscellaneous aircraft part comprises
a transparent panel or closure for covering or otherwise closing
an opening in a body surface of the aircraft.
This subclass is indented under subclass 129.1. Apparatus wherein the miscellaneous aircraft part comprises
either a removable or movable partition or panel member for opening
and closing an entranceway or other opening on the aircraft.
This subclass is indented under subclass 129.4. Apparatus wherein the part comprises a partition or panel
forming a significant external surface portion of the aircraft and
movable to allow movement of cargo, passengers, etc., therepast.
This subclass is indented under subclass 129.1. Apparatus wherein the aircraft part comprises stair or other
foothold means for ascent or descent from one level to another.
This subclass is indented under subclass 129.1. Devices and structural arrangements for reducing the resistance
of aircraft or aircraft elements to motion through the air.
This subclass is indented under subclass 129.1. Devices and arrangements for fastening the skin or covering
of aircraft elements to the framework or internal structure.
This subclass is indented under subclass 129.1. Miscellaneous materials peculiarly adapted to aircraft construction
or incorporated with other aircraft structure.
This subclass is indented under subclass 117. Arrangements for storing and feeding fuel on aircraft, or
for supplying fuel to or removing fuel from aircraft.
This subclass is indented under subclass 117. Device or arrangement for permitting a living being or goods
to be taken aboard or removed from aircraft.
(1)
Note. This is the generic subclass for patents, not otherwise
classifiable, relating to the loading or unloading of aircraft,
including the mere dumping of a load from the aircraft, whether
in flight or not in flight.
and 118.5+, for aircraft structure designed
to improve the efficiency for transporting cargo or people, respectively,
absent detail or arrangement for loading or unloading or discharge thereof.
for parachutes or other devices, either, per se,
or in combination with aircraft structure, for safely lowering persons, cargo,
or aircraft structure to the ground.
Railway Mail Delivery,
subclasses 1.2+ for means, other than mere dumping, for transferring
a load to or from an aircraft in flight, and other subclasses for
transferring objects to and from moving vehicles in general.
Material or Article Handling, various subclasses for the loading or unloading, in general,
of vehicles, and particularly
subclasses 373+ for the combination of a load-transporting type vehicle
and an external means cooperating in the loading or unloading of the
vehicle (except that this subclass (137.1) is proper if the claims
make it clear that the vehicle structure with which the means cooperates
is structure which is peculiar to a vehicle of the aircraft type)
and see also subclasses 467+ for a self-loading or unloading
vehicle (except that this subclass (137.1) is proper if the disclosure
relates solely to a vehicle of the aircraft type).
for aircraft structure designed to improve the efficiency
of transporting passengers, absent detail or arrangement for loading,
or unloading or discharge thereof.
This subclass is indented under subclass 137.1. Device or arrangement whereby goods are withdrawn in flight
by an umbrella-like canopy, i.e., parachute-type device.
for parachutes or other devices, either, per se,
or in combination with aircraft structure wherein features for safely lowering
persons, cargo, or aircraft structure to the ground are claimed.
This subclass is indented under subclass 137.1. Device or arrangement whereby cargo is attached to the external
surface of the aircraft, e.g., the fuselage or wings, for transportation thereby
until set free, i.e., released.
(1)
Note. The aircraft may or may not be in flight when the cargo
is released.
This subclass is indented under subclass 138. Devices having umbrella-like canopies of such area that
their resistance to motion through the air will cause persons or
objects attached to them to be lowered slowly to the ground.
This subclass is indented under subclass 142. Parachutes having hollow bracing members which are inflated
to cause the parachutes to open or to hold them open.
This subclass is indented under subclass 142. Devices and arrangements for storing parachutes in containers
or compartments on aircraft and for releasing or expelling them therefrom.
(1)
Note. This search may be continued in this class, subclass
139, where storage and release of parachutes designed to lower the
entire aircraft to the ground will be found.
This subclass is indented under subclass 147. Devices and arrangements for storing parachutes in containers
designed to be carried entirely on the person of the user, and for releasing
or expelling parachutes from such containers.
This subclass is indented under the class definition. Devices connected by a string or cord to a remote point
and sustained by relative movement of air past surfaces.
(1)
Note. Kites containing buoyant gas to provide additional
sustentation are found in this class, subclass 33.
This subclass is indented under the class definition. Subject matter comprising a machine or structure especially
designed for travel in the upper reaches of or beyond the atmosphere
of a celestial body (e.g., Earth).
(1)
Note. By "upper reaches of the atmosphere" is meant the height
at or beyond which the atmosphere (if any) is incapable of providing
(1) lift or sustentation to a winged or other aircraft or (2) sufficient
oxygen for operating the propulsion system of an aircraft.
(2)
Note. A machine or structure (manned or unmanned) which is
(1) disclosed as a body (i.e., satellite) which is to be placed in
orbit about a celestial body (e.g., Earth) or (2) solely disclosed
as a vehicle for use in outer space travel is considered proper
for classification here.
(3)
Note. Methods of using spacecraft are classified with the
corresponding apparatus.
(4)
Note. For a vehicle designed solely for travel on the surface
of a planet, see the appropriate vehicle class.
Adhesive Bonding and Miscellaneous Chemical Manufacture, appropriate subclasses for particular method or
apparatus for making a laminated ablating surface.
Compositions,
subclass 62 for heat-insulating compositions; and subclasses
67 through 69 for compositions involving refrigeration, heat, or energy
exchange including vaporization or expansion of material.
Communications: Directive Radio Wave Systems and
Devices (e.g., Radar, Radio Navigation),
subclasses 352 through 358for a satellite in combination with directive radio wave
equipment.
Telecommunications,
subclass 12.1 , 98, 427 through 430 for a satellite combined
with specific communication equipment of the type provided for in
that class.
Data Processing: Vehicles, Navigation, and Relative
Location,
subclass 226 for mathematical computations of space craft orbits
or paths. If significant vehicle structure is recited, classification
is in the appropriate vehicle class.
This subclass is indented under subclass 158.1. Subject matter in which the spacecraft is connected by an
elongate flexible member (e.g., a cable) to a mother craft or to
a celestial body.
(1)
Note. This subclass includes "space elevators" and "orbital
skyhooks".
Textiles: Braiding, Netting, and Lace Making, appropriate subclasses for a cable or rope, per
se, formed by braiding, knotting, or intertwisting strands.
This subclass is indented under subclass 158.1. Subject matter in which the spacecraft is constructed to
be placed in orbit about the celestial body and to be expanded after
launch by introduction of a gas into an interior portion of the spacecraft.
This subclass is indented under subclass 158.1. Subject matter including details of an arrangement of plural
spacecrafts in orbit about a celestial body or details of a path
traveled by the spacecraft in orbit or between planets.
(1)
Note. Only minimal spacecraft to spacecraft communication
is included here. Specific GPS systems, communication equipment,
ground station, gateway, signal transfer, handoff, or other telecommunication
equipment or procedures places satellite orbital arrangements in other
classes. See under SEE OR SEARCH CLASS below.
Communications: Directive Radio Wave Systems and
Devices (e.g., Radar, Radio Navigation),
subclasses 352 through 358for spacecraft orbit features combined with specific
GPS or other directional radio system details appropriate for that
class.
Telecommunications,
subclass 12.1 , 98, 427, and 428 for spacecraft orbit features
combined with specific communication equipment of the type provided
for in that class.
This subclass is indented under subclass 158.4. Subject matter including a process or specific means for
initiating travel of the spacecraft along an orbital path from a
non-orbital path or another orbital path.
(1)
Note. This subclass provides for final orbit insertion only.
Subject matter directed to vehicles or procedures for initial launch
are classified elsewhere.
This subclass is indented under subclass 158.4. Subject matter including a process or specific means for
controlling the spacecraft so as to maintain an orbit or set a new
orbit.
(1)
Note. This subclass does not provide for satellite attitude
control or for general propulsion equipment, which may be usable
with orbital control means.
This subclass is indented under subclass 158.6. Subject matter including a procedure or specific means
for creating an interaction between the spacecraft and the upper
atmosphere of the celestial body to effect a drag force on the satellite
to change its orbit.
This subclass is indented under subclass 158.1. Subject matter in which the spacecraft is intended to be
launched from a celestial body and returned to it and in which the
spacecraft includes specific means to ensure that it returns to
the celestial body in an operable condition.
(1)
Note. The term "operable" does not exclude devices requiring
a limited amount of maintenance or refurbishment before being returned
to use.
This subclass is indented under subclass 158.9. Subject matter in which the means to ensure includes specific
means for protection of the spacecraft due to motion through the
atmosphere of the celestial body.
(1)
Note. In this subclass are structures to control the heating
of all or part of a vehicle caused by the resistance to the vehicle
moving through an atmosphere. The mere recitation of a coating or
layer on the whole or a part of the surface of a vehicle is not
sufficient for placement in this subclass. A heat control device claimed
merely in terms of the composition or material of which it is composed is
classified in an appropriate composition or material class.
This subclass is indented under subclass 159.1. Subject matter in which the reentry shield is constructed
to be expanded by the introduction of a gas into an interior portion
of the shield.
This subclass is indented under subclass 158.9. Subject matter in which the spacecraft includes structure
that produces aerodynamic lift that enables the spacecraft upon
return to the celestial body"s atmosphere to be flown as
an aircraft to an appropriate landing site.
This subclass is indented under subclass 158.1. Subject matter in which the spacecraft comprises a plurality
of units configured to be assembled beyond the atmosphere of any
celestial body.
(1)
Note. This subclass includes a satellite or space station
formed of modules.
This subclass is indented under subclass 159.4. Subject matter in which all or a significant part of the
machine or structure can be reversibly and without damaging it deformed
or bent into a more compact configuration.
This subclass is indented under subclass 159.4. Subject matter in which one of the units includes a significant
portion of the structure of a vehicle used to separate the spacecraft
from the surface of a celestial body.
This subclass is indented under subclass 158.1. Apparatus wherein the machine or structure includes regulatory
means for either maintaining or correcting its position or attitude
either at or to a desired setting respectively as it moves in the
upper reaches of and/or beyond the atmosphere of a celestial
body.
This subclass is indented under subclass 164. Apparatus wherein the regulatory means comprises a rotating
body of stabilizing or fixedly maintaining an attitude of the machine
or structure.
This subclass is indented under subclass 164. Apparatus wherein the regulatory means comprises a magnetic
device for generating a controlling or damping magnetic force to
interact with either the magnetic field of a celestial body, e.g.,
earth, or a structure of or a structure mounted on the machine for
stabilizing or fixedly maintaining an attitude of the machine.
This subclass is indented under subclass 164. Apparatus provided with means utilizing gravitational force
to dampen spin or other undesired movement for stabilizing and/or maintaining
the machine or structure either in a desired attitude, per se, or
with respect to a celestial body.
(1)
Note. Despin weights for space craft are considered proper
subject matter for classification here.
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