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![[Search a list of Patent Appplications for class 192]](../as.gif) CLASS 192, | CLUTCHES AND POWER-STOP CONTROL |
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SECTION I - CLASS DEFINITION
This class includes clutches, combinations including vortex flow drive and clutch, vortex flow drive and brake, clutch and brake, and clutch and gear; and also includes mechanism for joint control of transmission and clutch, and transmission and brake.
This class includes the control of those various power-transmission means, motors, and brakes the motions of which occur at the completion of a cycle of operations or which are due to contact with the material handled by the machine or to the defective action of the parts of the machine operated or to such operations as arise from the initiation of measures for the safety of the operator.
This class is also the generic locus for clutches and brakes (see below for subclass references).
SECTION II - SUBCLASS REFERENCES TO THE CURRENT CLASS
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 21.5, | 107+, for both clutches and brakes of the subject matter herein classified. |
SECTION III - REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
| 74, | Machine Element or Mechanism, appropriate subclasses, especially 640+ for clutches or brakes and clutches used to modify or control a gearing organization, where specific gearing structure is claimed. |
| 180, | Motor Vehicles, subclasses 6.2+ for various clutch and brake arrangements providing for steering by driving, where some specific steering by driving vehicle structure is claimed. |
| 188, | Brakes, appropriate subclasses for motor vehicle mounted brakes used in association with clutches, where the clutch is not claimed. |
| 234, | Selective Cutting (e.g., Punching), appropriate subclasses, for the starting and stopping of a selective cutting machine in response to various predetermined conditions; especially subclass 21 for means to stop after a given number of operations, and subclass 51 for unicyclic or nonrepeat drive means. |
| 242, | Winding, Tensioning, or Guiding, subclasses 257+ for a clutch in a fishing reel, subclasses 264+ for a releasable coupling in a fishing reel, subclass 356.6 for a one-way clutch in the drive of a winder of an information bearing carrier, subclasses 394+ for a clutch in a reeling device of general use, subclasses 484.6+ for a helical winding machine drive which may include a clutch, and subclasses 545+ for a clutch in the drive on a convolute winding machine in which particular winding or unwinding structure is specified. |
| 399, | Electrophotography, subclass 210 for damping or braking a slit exposure scanning carriage. |
| 418, | Rotary Expansible Chamber Devices, subclass 69 , for rotary expansible chamber devices combined with a nominally claimed clutch device. |
| 475, | Planetary Gear Transmission Systems or Components, appropriate subclasses, for clutches or brakes and clutches used to modify or control a planetary gearing organization. |
| 477, | Interrelated Power Delivery Controls, Including Engine Control, for interrelated control between an engine and a transmission, clutch, or brake. |
SUBCLASSES
![[List of Patents for class 192 subclass 3.21]](../ps.gif) 3.21 | VORTEX-FLOW DRIVE AND CLUTCH: | ||||||||||||||
This subclass is indented under the class definition. Apparatus comprising the combination of a clutch under the
... and a device described in (1) Note below as a "Vortex-Flow
Drive".
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| 3.22 | With means to effect torque reversal: | ||||||||
This subclass is indented under subclass 3.21. Device including a rotated input shaft that drives the combination
(i.e., the vortex-flow drive plus the clutch), and a rotatable output shaft
which may be driven by said combination in a first direction of
rotation, and provided with means to change the direction of rotation of
said output shaft while the input shaft continues to rotate in its
original direction.
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| 3.23 | With brake: | ||||
This subclass is indented under subclass 3.21. Device further provided with a brake.
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| 3.24 | Alternatively operative clutch and brake: | ||
This subclass is indented under subclass 3.23. Device wherein either the clutch or the brake (but not both
simultaneously) is in functioning relationship.
| |||
| 3.25 | With additional drive or clutch: |
| This subclass is indented under subclass 3.21. Device including at least two "Vortex-Flow Drives", or at least two clutches. | |
| 3.26 | Simultaneously operative clutches: |
| This subclass is indented under subclass 3.25. Device including at least two clutches that are in force-transmitting, relationship at the same time. | |
| 3.27 | Alternatively operative clutches: | ||
This subclass is indented under subclass 3.25. Device including two clutches wherein either a first or
a second of the clutches (but not both simultaneously) is in force-transmitting
relationship.
| |||
| 3.28 | Including drive-lockup clutch: |
| This subclass is indented under subclass 3.21. Device wherein engagement of the clutch causes the first, rotating shaft and the second, rotated shaft of the vortex-flow drive to be effectively secured together so that all rotation of the first shaft is transmitted to the second shaft in 1:1 ratio. | |
| 3.29 | Having fluid-pressure operator: | ||||||
This subclass is indented under subclass 3.28. Device provided with means for causing engagement and disengagement
of the drive-lockup clutch, which means is actuated by force applied
via a liquid or gaseous medium.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
| 3.3 | With auxiliary source of pressure: |
| This subclass is indented under subclass 3.29. Combination provided with means, other than the vortex-flow drive, that generates the force in the medium. | |
| 3.31 | Having speed-responsive operator: | ||||
| This subclass is indented under subclass 3.28. Device provided with means for causing engagement and disengagement
of the clutch and wherein the means is actuated upon the attainment
of a predetermined angular velocity of one of the shafts of the
vortex-flow drive.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| 3.32 | Alternatively operative drive and clutch: |
| This subclass is indented under subclass 3.21. Device wherein either the vortex-flow drive or the clutch (but not both simultaneously is in force-transmitting relationship. | |
| 3.33 | Fluid-pressure operator for engaging clutch: | ||||
This subclass is indented under subclass 3.21. Device provided with means for causing engagement of the
clutch, which means is actuated by force applied via a liquid or
gaseous medium.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| 3.34 | VORTEX-FLOW DRIVE AND BRAKE: | ||||||||
This subclass is indented under subclass 3.21. Apparatus under the class definition in which the mechanism
for control of power includes a brake and a device described in
(1) Note of ... of this class (192).
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| 3.51 | TRANSMISSION CONTROL AND CLUTCH CONTROL: |
| This subclass is indented under the class definition. Device including means to determine the operational mode of a clutch structure and including means to determine the ratio of a multi-ratio motion transmitting mechanism. | |
| 3.52 | Planetary transmission and coaxial clutch: |
| This subclass is indented under subclass 3.51. Device wherein the multi-ratio motion transmitting mechanism controlled is of the type wherein an element called a planet member rotates about an axis, which axis revolves about a second axis, in which the rotation and the revolution may or not be simultaneous; and wherein the clutch structure controlled is functional to transmit motion directly and by-pass the multi-ratio motion transmitting mechanisms. | |
| 3.53 | Including separate, reversing pedal: |
| This subclass is indented under subclass 3.52. Device including means adapted to be engaged by the foot of an operative to determine the output of the transmission to rotate oppositely to the input. | |
| 3.54 | Common control: | ||
| This subclass is indented under subclass 3.51. Device wherein the means used to determine the operational
mode of the clutch is also used to determine the ratio of the transmission.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
| 3.55 | Power-operated clutch: |
| This subclass is indented under subclass 3.54. Device wherein a clutch member is moved relative to a cooperating member into or out of motion transmitting engagement therewith by energy originating at a source other than an operative. | |
| 3.56 | Electromagnetically operated: |
| This subclass is indented under subclass 3.55. Device wherein the clutch member is moved relative to the cooperating member by the attracting force of an electrically induced magnetic field in one member acting on ferrous-like material in the other member (or on structure connected to the members). | |
| 3.57 | Fluid-press operated: |
| This subclass is indented under subclass 3.55. Device wherein the clutch member is moved relative to the cooperating member by the action of a pressurized flowable medium acting on one of the members (or on structure connected thereto). | |
| 3.58 | Electrically triggered: |
| Device under 3.57 including structure for conducting electrical current which is regulated responsive to the mode/ratio determining means to, in turn, regulate the flow of the clutch operating medium. | |
| 3.59 | Vacuum operated: |
| This subclass is indented under subclass 3.57. Device including provision to reduce the pressure on a portion of one of the members (or structure connected thereto) so that atmospheric pressure serves to moves that member relatively to the other member. | |
| 3.61 | Stepped ratio transmission: |
| This subclass is indented under subclass 3.54. Device wherein the multi-ratio motion transmitting mechanism is of a type capable of operation in a limited number of specific, exactly proportional relationships. | |
| 3.62 | With control lever: |
| This subclass is indented under subclass 3.61. Device wherein the common control includes means adapted to be gripped by the hand of an operator. | |
| 3.63 | Interrelated (e.g., with interlock): |
| This subclass is indented under subclass 3.51. Device wherein the operation of one of the control means is dependent on the operational characteristics of the other control means. | |
| 12 | CLUTCH AND BRAKE: | ||||||
| This subclass is indented under the class definition. Mechanism in which a clutch or brake is applied alternately
to drive and retard or stop the mechanism.
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| 13 | Vehicle type: |
| This subclass is indented under subclass 12. Combinations of clutch and brake adapted for use in propelling and retarding vehicles. | |
| 14 | Same member: | ||
| This subclass is indented under subclass 12. Combinations in which the clutch and brake are the same
member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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| 15 | Automatic check and release: |
| This subclass is indented under subclass 12. Combinations in which the brake is applied automatically when drive through the clutch ceases. | |
| 16 | Clutch and brake same member: |
| This subclass is indented under subclass 15. Combinations in which the clutch and brake are the same member. | |
| 17 | Peripheral brake: |
| This subclass is indented under subclass 12. Combinations in which the brake is applied transversely to the periphery of a wheel. | |
| 18 | Sliding operation: |
| This subclass is indented under subclass 12. Combinations in which both the clutch and brake move parallel to the axis of motion. | |
| 19 | Crank control: | ||
| This subclass is indented under subclass 12. Combinations in which the clutch and brake are operated
by the crank that drives the shaft.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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| 20 | CLUTCH AND GEAR: |
| This subclass is indented under the class definition. Clutches in which the clutch is associated with a gear that is instrumental simply in completing the operation of the clutch. | |
| 21 | Reversing: |
| This subclass is indented under subclass 20. Clutches in which the gearing completes the reversal of the clutch. | |
| 21.5 | FIELD RESPONSIVE FRICTIONAL MEDIA TYPE: | ||||
| This subclass is indented under the class definition. Devices wherein torque is transmitted or absorbed between
two relatively movable members having a medium there between and wherein
the frictional characteristics of the medium are (1) augmented by,
or (2) altered in response to a change in, a magnetic or an electrostatic
field set up between the two members.
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| 22 | LATCH OPERATED: |
| This subclass is indented under the class definition. Clutches in which the operation of a clutching or transmission member is accomplished through a latch or relatively stationary finger. | |
| 23 | Corn-planter type: |
| This subclass is indented under subclass 22. Clutches peculiarly adapted to seed-planters. | |
| 24 | Longitudinally moving transmission member: |
| This subclass is indented under subclass 22. Clutches in which a clutching member moves parallel to the axis of rotation. | |
| 25 | Pin: | ||
| This subclass is indented under subclass 24. Mechanism in which the clutching member is a pin.
SEE OR SEARCH CLASS:
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| 26 | Transversely moving transmission member: |
| This subclass is indented under subclass 22. Clutches in which the clutching member moves transversely to the axis of rotation. | |
| 27 | Ball or roller: | ||
| This subclass is indented under subclass 26. Clutches in which the active element of the latch-operated
mechanism is a ball or roller.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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| 28 | Positive: |
| This subclass is indented under subclass 26. Clutches in which the transversely-moving clutching member engages positively. | |
| 29 | Rotating key: |
| This subclass is indented under subclass 28. Clutches in which the positive clutching member is a rotary approximately cylindrical member. | |
| 30 | CLUTCHES: | ||||||||||
This subclass is indented under the class definition. Power-transmitting devices operating by friction or by interlocking
for securing driving continuity as between two shafts or a pulley and
a shaft or other driving and driven parts.
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| 31 | Automatic: | ||
| This subclass is indented under subclass 30. Clutches which engage without manipulation upon the initiation
of rotation of the parts to which they are attached.
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| 32 | Manual control: | ||||
| This subclass is indented under subclass 31. Clutches the action of which is initiated by manipulation,
upon which the engagement is completed automatically.
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| 33 | Definite-position release: |
| This subclass is indented under subclass 32. Clutches in which the clutch is disengaged at the end of a cycle. | |
| 34 | Shaft thrust: |
| This subclass is indented under subclass 32. Clutches in which the action of engagement is completed by the thrust of the shaft. | |
| 35 | Pilot mechanism: |
| This subclass is indented under subclass 32. Clutches in which the initial action is to throw in a pilot-clutch or other pilot mechanism, which operates to effect the engagement of the main clutch. | |
| 36 | Brake band: |
| This subclass is indented under subclass 35. Clutches in which the pilot mechanism is of a brake-band type. | |
| 37 | Transversely moving: |
| This subclass is indented under subclass 32. Clutches in which the clutching parts move transversely to the axis of rotation. | |
| 38 | Ball or roller: | ||
| This subclass is indented under subclass 37. Clutches in which the transversely-moving clutching part
is a ball or roller.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
| 39 | Positive: |
| This subclass is indented under subclass 37. Clutches in which the transversely-moving clutching parts are positively engaged. | |
| 40 | Electric: |
| This subclass is indented under subclass 32. Clutches in which the automatic action of the clutch is controlled electrically. | |
| 41 | One-way engaging: | ||||||||
| This subclass is indented under subclass 31. Clutches which engage in one direction of rotation without
manipulation.
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| 42 | Free-engine type: | ||
| This subclass is indented under subclass 41. Clutches designed to impart initial movement to an engine
to start the same, the clutch releasing when the speed of the engine
exceeds the starting-speed.
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| |||
| 43 | Reversible: | ||
| This subclass is indented under subclass 41. Clutches adjustable to drive in either direction.
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| 43.1 | Pivoted pawls: | ||||
| This subclass is indented under subclass 43. Clutches in which the engaging elements are pivoted pawls,
each set of pawls comprising a pair of oppositely-directed pivoted
pawls, which may be an integral single member.
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| 43.2 | Slidable pawls: | ||
| This subclass is indented under subclass 43. Clutches in which the engaging elements are slidable pawls.
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| 44 | Ball or roller: | ||
| This subclass is indented under subclass 43. Clutches in which the engaging elements are balls or rollers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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| 45 | Ball or roller: | ||||||||||
| This subclass is indented under subclass 41. Clutches in which the engaging element is a ball or roller.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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| 45.1 | Wedging pawl or block: | ||
| This subclass is indented under subclass 41. Clutches in which the engaging element is a wedging pawl
or block.
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| 45.2 | Two-point gripper: |
| This subclass is indented under subclass 41. Clutches in which the engaging element has a two-point frictional gripping contact. | |
| 46 | Positive: | ||
| This subclass is indented under subclass 41. Clutches which positively engage.
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| 47 | Manual control: | ||||
| This subclass is indented under subclass 41. Clutches that may be made operative or inoperative by manipulation.
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| 48.1 | Plural clutch-assemblage: | ||||||||||||
This subclass is indented under subclass 31. Mechanism provided with at least two clutch-assemblages
associated together to transmit rotation from at least one rotating
input shaft to at least one rotatable output shaft.
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| |||||||||||||
| 48.2 | Including electrically actuated clutch assemblage: | ||||||
This subclass is indented under subclass 48.1. Device wherein one of the associated clutch-assemblages
is provided with clutch-elements that are mutually engaged or disengaged
by electromagnetic energy.
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| |||||||
| 48.3 | Diverse clutch-assemblages: | ||
This subclass is indented under subclass 48.1. Device wherein one of the associated clutch-assemblages
is different in its principle of operation from another.
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| 48.4 | Including three or more assemblages: |
| This subclass is indented under subclass 48.3. Device provided with more than two associated clutch-assemblages. | |
| 48.5 | Including one clutch-assemblage having interdigitated clutch-elements: | ||||
This subclass is indented under subclass 48.3. Device wherein one of the associated clutch-assemblages
is provided with a clutch-element that intermeshes with a mating
clutch-element to transmit torque positively (i.e., without slipping),
in at least one direction of rotation, from an input shaft to an
output shaft.
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| 48.6 | And another clutch-assemblage having unirotationally engaging clutch elements: | ||||||||
This subclass is indented under subclass 48.5. Device wherein a second one of the associated clutch-assemblages
is provided with clutch-elements that transmit torque from an input shaft
to an output shaft in only one direction of rotation of the input
shaft, which clutch-elements permit rotation in said direction of
the output shaft relative to the input shaft.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
| 48.7 | With means to actuate or deactuate clutch-assemblages sequentially: | ||||
This subclass is indented under subclass 48.1. Device wherein two or more clutch-assemblages are intended
to be operative simultaneously as a set, provided with means to
ensure that one clutch-assemblage of said set has its clutch-elements
fully engaged before another clutch-assemblage of said set has its
clutch-elements engaged, or with means to ensure that one clutch-assemblage
of said set has its clutch-elements fully disengaged before another
clutch-assemblage of said set has its clutch-elements disengaged.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| 48.8 | Associated with three or more shafts: | ||
This subclass is indented under subclass 48.1. Device wherein the clutch-assemblages are provided with
more than two shafts for input or output of torque, in any combination
of one (or more) input shaft (s) plus two (or more) output shafts,
or of two (or more) output shafts plus one (or more) output shaft
(s).
| |||
| 48.9 | Alternatively operative assemblages: | ||||
| This subclass is indented under subclass 48.8. Device wherein either a first or a second of the clutch-assemblages
(but not both simultaneously) is in torque-transmitting relationship.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| 48.91 | Having common clutch-element support: |
| This subclass is indented under subclass 48.9. Device wherein a member rigidly carries one of the clutch-elements of the first clutch-assemblage and the same member rigidly carries one of the clutch-elements of the second clutch-assemblage. | |
| 48.92 | Including unirotationally engaging clutch-elements: | ||||
| This subclass is indented under subclass 48.1. Device wherein at least one of the associated clutch-assemblages
is provided with clutch-elements that transmit torque from an input shaft
to an output shaft in only one direction of rotation of the input
shaft, which clutch-elements permit rotation in said direction of
the output shaft relative to the input shaft.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| 49 | Parallel vehicle wheels: | ||
| This subclass is indented under subclass 48.1. Clutches associated to operate in connection with parallel
vehicle-wheels.
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| 50 | Free wheel: |
| This subclass is indented under subclass 49. Clutches associated to operate in connection with parallel vehicle-wheels, permitting either wheel to overrun. | |
| 51 | Reversing: | ||
| This subclass is indented under subclass 48.1. Clutches instrumental in accomplishing the reversal of rotation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
| 52.1 | Progressive engagement: | ||||
| This subclass is indented under subclass 30. Subject matter wherein means are provided specifically to
cause clutch elements to engage gradually.
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| 52.2 | Surface area: |
| This subclass is indented under subclass 52.1. Subject matter wherein the amount of surface area of one clutch element in engagement with a second clutch element increases as the elements move toward full engagement. | |
| 52.3 | Yielding: |
| This subclass is indented under subclass 52.2. Subject matter wherein at least one clutch element deforms as a result of engagement to cause an increase in the engaging surface area. | |
| 52.4 | Variable force: |
| This subclass is indented under subclass 52.1. Subject matter wherein an engaging force is changed during clutch engagement in order to provide gradual engagement of the clutch. | |
| 52.5 | Initial engagement causes increase in applied force: |
| This subclass is indented under subclass 52.4. Subject matter wherein initial clutch engagement causes relative rotation of a mechanism to increase the applied force. | |
| 52.6 | Yielding: | ||
| This subclass is indented under subclass 52.1. Subject matter wherein at least one clutch element deforms
as a result of engagement to cause gradual engagement while the
contacting surface area remains constant.
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| |||
| 53.1 | Frictional and positive: | ||
| This subclass is indented under subclass 52.1. Subject matter wherein after a preliminary slipping engagement
of friction elements, positive clutch elements intermesh to transmit
torque without slip.
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| |||
| 53.2 | Magnetic or electromagnetic operated friction clutch: | ||
| This subclass is indented under subclass 53.1. Subject matter wherein the slipping engagement is produced
by the force of a magnet or electromagnet.
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| |||
| 53.3 | With blocker: | ||||
This subclass is indented under subclass 53.1. Subject matter wherein structure is provided to resist or
delay movement of a shiftable positive clutch element into full
engagement to facilitate synchronization.
| |||||
| 53.31 | Self-energizing: |
| This subclass is indented under subclass 53.3. Subject matter wherein a cam structure is provided to increase the clamping force of friction elements after an initial engagement of the friction elements. | |
| 53.32 | Interposed friction member: | ||||
This subclass is indented under subclass 53.3. Subject matter wherein frictional engagement is provided
by at least three friction elements with at least one friction element
being sandwiched between adjacent elements.
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| |||||
| 53.33 | Member extending axially between friction surfaces: |
| This subclass is indented under subclass 53.3. Subject matter wherein there are plural friction elements connected to at least one axially extending member which cooperates with a radially extending portion of a shift sleeve to perform a blocking function. | |
| 53.331 | Blocker on axially extending stepped pin: |
| This subclass is indented under subclass 53.33. Subject matter wherein at least one axially extending member has a substantially circular cross-section and the cross-section has a diameter that varies along the length of the axially extending member. | |
| 53.332 | Resilient detent pin: | ||
This subclass is indented under subclass 53.331. Subject matter further including at least one axially extending
resilient member offset circumferentially from the stepped pin to cooperate
with an opening in the shift sleeve to define at least one position
of the shift sleeve.
| |||
| 53.34 | Outward tooth or lug on friction member: |
| This subclass is indented under subclass 53.3. Subject matter wherein the blocker includes at least one lug or tooth carried by a friction element in which said lug or tooth projects radially outward of the rotational axis. | |
| 53.341 | With thrust member: |
| This subclass is indented under subclass 53.34. Subject matter wherein the shiftable positive clutch element carries a keylike strut member for imparting axial force to the friction element. | |
| 53.342 | Resilient thrust bar: |
| This subclass is indented under subclass 53.341. Subject matter wherein the keylike strut member is made of a yieldable material. | |
| 53.343 | Resilient expander ring: |
| This subclass is indented under subclass 53.341. Subject matter wherein the keylike strut member is biased radially outward relative to the rotation axis by at least one substantially circular spring ring. | |
| 53.35 | Inward tooth or lug on friction member: |
| This subclass is indented under subclass 53.3. Subject matter wherein the blocker includes at least one lug or tooth carried by the friction element in which said lug or tooth projects radially toward the rotational axis. | |
| 53.36 | Radially movable blocker: |
| This subclass is indented under subclass 53.3. Subject matter wherein the blocker has a component of movement which is transverse or oblique to the axis of rotation to allow the shiftable positive clutch element to pass into its engaged position. | |
| 53.361 | Detent acts as blocker: |
| This subclass is indented under subclass 53.3. Subject matter wherein the radially movable blocker comprises structure which is provided to define a disengaged position of the shiftable positive clutch element. | |
| 53.362 | Rocker lever actuates friction clutch: |
| This subclass is indented under subclass 53.361. Subject matter wherein the detent is formed by or carried by a generally radially disposed pin which is pivotally mounted at its radially inner end to an input or output shaft and is releasably connected at its radially outer end to the shiftable positive clutch element; and wherein axial movement of the shiftable element causes the pin to tilt and force frictional surfaces into engagement; further shifting of the element, and engagement of the positive clutch elements, being resisted by the releasable connection until synchronization is achieved. | |
| 53.363 | Radially movable friction element acts as blocker: |
| This subclass is indented under subclass 53.36. Subject matter wherein one of the friction elements has a component of movement transverse to the axis of rotation to allow the shiftable positive clutch element to pass into its engaged position. | |
| 53.364 | Resilient friction element: |
| This subclass is indented under subclass 53.363. Subject matter wherein the transversely moving friction element is formed by a resilient ringlike member substantially concentric to the clutch rotational axis. | |
| 53.4 | Lock for positive clutch: | ||||
This subclass is indented under subclass 53.1. Subject matter wherein structure is provided to prevent
inadvertent disengagement of the intermeshed positive elements.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| 53.5 | Axially projecting positive clutch: | ||||
This subclass is indented under subclass 53.1. Subject matter wherein at least one of the positive clutch
elements includes at least one tooth or lug projecting axially from
an end face thereof.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| 53.51 | Cylindrical pin: |
| This subclass is indented under subclass 53.5. Subject matter wherein the tooth or lug has a substantially circular cross-sectional shape. | |
| 53.6 | Transversely moving positive clutch: | ||||
This subclass is indented under subclass 53.1. Subject matter wherein at least one of the positive clutch
elements has a component of engaging movement transverse to the
axis of rotation.
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| |||||
| 54.1 | Torque responsive: | ||
This subclass is indented under subclass 30. Subject matter wherein the transmission of torque from a
clutch input shaft to a clutch output shaft is affected by the torsional
strain on one of the shafts.
| |||
| 54.2 | Hub clutch: | ||
| This subclass is indented under subclass 54.1. Subject matter wherein the clutch engages a wheel hub to
a selectively driven axle (e.g., in a four-wheel drive vehicle).
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| |||
| 54.3 | Fluid operated: | ||
| This subclass is indented under subclass 54.1. Subject matter wherein the clutch is moved either to an
engaged or disengaged position by hydraulic or pneumatic pressure.
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| |||
| 54.4 | Magnetic or electromagnetic: | ||
| This subclass is indented under subclass 54.1. Subject matter wherein the clutch is moved either to an
engaged or disengaged position by a permanent magnet or an electromagnetic
coil.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
| 54.5 | Cam operated: | ||
| This subclass is indented under subclass 54.1. Subject matter wherein the torsional strain causes movement
of an inclined surface relative to a cooperating structure to affect
engagement of the clutch.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
| 54.51 | Screw operated: |
| This subclass is indented under subclass 54.5. Subject matter wherein the torsional strain causes movement of a helical thread spline relative to a cooperating structure to affect engagement of the clutch. | |
| 54.52 | Ball or roller type: |
| This subclass is indented under subclass 54.5. Subject matter wherein the inclined surface contacts a sphere or cylinder. | |
| 55.1 | With overload release coupling: | ||||||||
This subclass is indented under subclass 54.1. Subject matter having structure in the torque transmission
path which permits continuous relative rotation between the input
and output shafts, without disengaging the clutch upon occurrence
of a torque overload.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
| 55.2 | With flexible shaft coupling permitting limited relative rotation: | ||||||||
This subclass is indented under subclass 54.1. Subject matter having structure in the torque transmission
path which permits limited relative rotation between the input and
output shafts in order to absorb torque variations.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
| 55.3 | Separate resilient member between clutch element and its shaft: |
| This subclass is indented under subclass 55.2. Subject matter wherein the structure which permits limited relative rotation is a coupling separate from the engaging clutch elements and includes at least one resiliently yieldable member. | |
| 55.4 | Fluid damper: |
| This subclass is indented under subclass 55.3. Subject matter wherein the resilience of the resiliently yieldable member or members is provided by compressing a liquid or gas or by forcing a liquid or gas through a restriction (e.g., a dashpot). | |
| 55.5 | Coil spring coaxial with rotation axis: |
| This subclass is indented under subclass 55.3. Subject matter wherein at least one yieldable member is comprised of an elongated elastic element coiled about a center line which substantially coincides with the axis of the clutch. | |
| 55.51 | Radially overlapping convolutions: |
| This subclass is indented under subclass 55.5. Subject matter wherein the coils of the elongated element overlie each other substantially in a plane transverse to the rotational axis of the clutch. | |
| 55.6 | Plural resilient members: |
| This subclass is indented under subclass 55.3. Subject matter including plural resiliently yieldable members. | |
| 55.61 | Coil springs with center line spaced from rotational axis: |
| This subclass is indented under subclass 55.6. Subject matter wherein each of the resiliently yieldable members is comprised of an elongated elastic element coiled about a center line other than the rotational axis of the clutch. | |
| 55.62 | Center line of coil springs parallel to rotational axis: |
| This subclass is indented under subclass 55.61. Subject matter wherein each of the elongated resilient or elastic members is coiled about a center line that is substantially parallel to the rotational axis of the clutch. | |
| 55.7 | Coil spring with center line spaced from rotational axis: |
| This subclass is indented under subclass 55.3. Subject matter wherein there is a single resiliently yieldable member comprised of an elongated resilient or elastic element coiled about a center line other than the rotational axis of the clutch. | |
| 56.1 | Overload release: | ||||||
This subclass is indented under subclass 54.1. Subject matter wherein engaged clutch elements, coupling
input and output shafts of a selectively engageable clutch, release
or slip when subjected to an excessive torsional strain on one of
the shafts.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||
| 56.2 | Coil: |
| This subclass is indented under subclass 56.1. Subject matter wherein one of the clutch elements is a helically coiled resilient device which frictionally engages the other clutch element to transmit torque. | |
| 56.3 | Fluid operated clutch: | ||
| This subclass is indented under subclass 56.1. Subject matter wherein the clutch elements are moved to
or held in either an engaged or released condition by means of a
liquid or gas under pressure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
| 56.31 | Axially engaged: |
| This subclass is indented under subclass 56.3. Subject matter wherein movement of the clutch elements to the engaged condition is in a direction parallel to the rotation axis of the clutch. | |
| 56.32 | Positive: |
| This subclass is indented under subclass 56.31. Subject matter wherein the clutch elements have formations thereon which intermesh to transmit torque without slip. | |
| 56.33 | Ball or roller: |
| This subclass is indented under subclass 56.32. Subject matter wherein at least one of the formations is a spherical or generally cylindrical member. | |
| 56.4 | Magnetic or electromagnetic: | ||
| This subclass is indented under subclass 56.1. Subject matter wherein the clutch elements are moved to
or held in either an engaged or released condition by means of at
least one permanent magnet or electromagnetic coil.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
| 56.41 | Axially engaged: |
| This subclass is indented under subclass 56.4. Subject matter wherein movement of the clutch elements to the engaged condition is in a direction parallel to the rotation axis of the clutch. | |
| 56.42 | Positive: |
| This subclass is indented under subclass 56.41. Subject matter wherein the clutch elements have formations thereon which intermesh to transmit torque without slip. | |
| 56.43 | Ball or roller: |
| This subclass is indented under subclass 56.42. Subject matter wherein at least one of the formations is a spherical or generally cylindrical member. | |
| 56.5 | Clutch elements remain disengaged after overload corrected: |
| This subclass is indented under subclass 56.1. Subject matter wherein the clutch elements release from engagement when subjected to excessive torsional strain and remain released after the excessive torsional strain is reduced. | |
| 56.51 | Having separate latch to hold clutch elements disengaged: | ||||
| This subclass is indented under subclass 56.5. Subject matter having a spring biased detent or pivoted
pawl which positively engages another member to prevent the clutch
elements from reengaging until reset by an operator.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| 56.52 | Axially engaged: |
| This subclass is indented under subclass 56.51. Subject matter wherein movement of the clutch elements to the engaged condition is in a direction parallel to the rotation axis of the clutch. | |
| 56.53 | Positive: |
| This subclass is indented under subclass 56.52. Subject matter wherein the clutch elements have formations thereon which intermesh to transmit torque without slip. | |
| 56.54 | Ball or roller: |
| This subclass is indented under subclass 56.53. Subject matter wherein at least one of the formations is a spherical or generally cylindrical member. | |
| 56.55 | Axially engaged: |
| This subclass is indented under subclass 56.5. Subject matter wherein movement of the clutch elements to the engaged condition is in a direction parallel to the rotation axis of the clutch. | |
| 56.56 | Positive: |
| This subclass is indented under subclass 56.55. Subject matter wherein the clutch elements have formations thereon which intermesh to transmit torque without slip. | |
| 56.57 | Ball or roller: |
| This subclass is indented under subclass 56.56. Subject matter wherein at least one of the formations is a spherical or generally cylindrical member. | |
| 56.6 | Axially engaged: |
| This subclass is indented under subclass 56.1. Subject matter wherein movement of the clutch elements to the engaged condition is in a direction parallel to the rotation axis of the clutch. | |
| 56.61 | Positive: |
| This subclass is indented under subclass 56.6. Subject matter wherein the clutch elements have formations thereon which intermesh to transmit torque without slip. | |
| 56.62 | Ball or roller: |
| This subclass is indented under subclass 56.61. Subject matter wherein at least one of the formations is a spherical or generally cylindrical member. | |
| 57 | Fluent material and mechanical: | ||||||
| This subclass is indented under subclass 30. Clutches include an ordinary friction or other mechanically
clutching part combined with a clutch in which the resisting part
is enveloped in the clutching material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||
| 58.1 | Fluent material: | ||||||
| This subclass is indented under subclass 30. Subject matter in which a clutching medium envelopes at
least one of a pair of clutch members and is a fluid or any substance
the particles of which readily flow over each other.
SEE OR SEARCH CLASS:
| |||||||
| 58.2 | Fluid: | ||
This subclass is indented under subclass 58.1. Subject matter wherein the clutching medium is a liquid
or a gas.
| |||
| 58.3 | Vane clutch: |
| This subclass is indented under subclass 58.2. Subject matter wherein at least one of the members is provided with a projection acting as a scoop or paddle which propels the clutching medium against the other of the members to transmit torque therebetween. | |
| 58.4 | Viscous shear: |
| This subclass is indented under subclass 58.2. Subject matter wherein torque is transmitted by fluid friction acting on surfaces of the clutch members. | |
| 58.41 | Multiple plate: |
| This subclass is indented under subclass 58.4. Subject matter wherein there is a plurality of disclike elements on one clutch member interleaved with a plurality of disclike elements on the other of the clutch members. | |
| 58.42 | Variable gap or volume: |
| This subclass is indented under subclass 58.41. Subject matter wherein means are provided for adjusting the spacing between the disclike elements or for adjusting the volume of a chamber in which the liquid or gas is contained. | |
| 58.43 | Variable gap or volume: |
| This subclass is indented under subclass 58.4. Subject matter wherein means are provided for adjusting the spacing of the surfaces of the clutch members or adjusting the volume of a chamber in which the liquid or gas is contained. | |
| 58.5 | Separate reservoir: | ||
This subclass is indented under subclass 58.4. Subject matter wherein one of the clutch members rotates
in a space defined by a housing, which housing has a working chamber
in which fluid friction between the members occurs and wherein a
separate storage chamber is provided in which the liquid or gas
can be collected.
| |||
| 58.6 | Automatic regulation: |
| This subclass is indented under subclass 58.5. Subject matter wherein means are provided to control the flow of fluid between the working chamber and the storage chamber in response to at least one sensed condition. | |
| 58.61 | Magnetic or electric: |
| This subclass is indented under subclass 58.6. Subject matter wherein the means which controls the flow between chambers is magnetically or electrically operated. | |
| 58.62 | Temperature and speed: |
| This subclass is indented under subclass 58.6. Subject matter wherein the sensed condition includes both a level of heat and a rate of rotation. | |
| 58.63 | Temperature: |
| This subclass is indented under subclass 58.6. Subject matter wherein the sensed condition is a level of heat. | |
| 58.64 | Coolant and clutching medium: | ||||
This subclass is indented under subclass 58.63. Subject matter wherein the sensed condition is a level of
heat in the clutching medium and the level of heat in a separate
liquid used to cool a related device.
SEE OR SEARCH CLASS:
| |||||
| 58.65 | Ambient and clutching medium: |
| This subclass is indented under subclass 58.63. Subject matter wherein the sensed condition is a level of heat in the clutching medium and the level of heat of air external to and immediately surrounding the clutch. | |
| 58.66 | Ambient and coolant: |
| This subclass is indented under subclass 58.63. Subject matter wherein the sensed condition is a level of heat in air external to and immediately surrounding the clutch and the level of heat in a separate liquid used to cool a related device. | |
| 58.67 | Clutching medium: |
| This subclass is indented under subclass 58.63. Subject matter wherein the sensed condition is the level of heat in the clutching medium. | |
| 58.68 | Ambient: |
| This subclass is indented under subclass 58.63. Subject matter wherein the sensed condition is the level of heat in air external to and immediately surrounding the clutch. | |
| 58.681 | Bimetallic: |
| This subclass is indented under subclass 58.68. Subject matter wherein the level of heat of the surrounding air is sensed by an element comprised of at least two metals having dissimilar coefficients of thermal expansion, the element moving in response to a change in the level of heat to effect control of the level of clutching medium in the working chamber (e.g., by operating a valve). | |
| 58.682 | Spiral: |
| This subclass is indented under subclass 58.681. Subject matter wherein the element is coiled in plural convolutions which lie substantially in the same plane. | |
| 58.683 | Resilient or adjustable mounting feature: |
| This subclass is indented under subclass 58.682. Subject matter wherein at least one end of the element is attached to a support on the clutch by recoilably yieldable means or by means permitting a change in the position of attachment. | |
| 58.684 | Mounting feature: |
| This subclass is indented under subclass 58.681. Subject matter wherein the specifics of the attachment of the element to the clutch are cited as significant. | |
| 58.7 | Pump-out feature: |
| This subclass is indented under subclass 58.5. Subject matter wherein a device is provided to force fluid from the working chamber to the storage chamber and wherein the shape, arrangement or material of said device is cited as significant. | |
| 58.8 | Specific valve: |
| This subclass is indented under subclass 58.5. Subject matter wherein a device is provided for opening and closing a fluid passage extending between the storage and working chamber and wherein the shape, arrangement or material of said device is cited as significant. | |
| 58.9 | Radial vane: |
| This subclass is indented under subclass 58.2. Subject matter, having a clutch member disposed radially inward of another clutch member, and one of the clutch members carries bladelike elements which slidably engage the other member, rotation being transmitted through circumferential compression of the fluid. | |
| 58.91 | Vanes on inner member: |
| This subclass is indented under subclass 58.9. Subject matter wherein the bladelike elements are carried by the radially inward member to slidably engage an inwardly facing surface on the other member. | |
| 58.92 | Spring-biased: |
| This subclass is indented under subclass 58.91. Subject matter wherein recoilably yieldable means are provided to impart a radially outwardly directed force on the bladelike elements. | |
| 59 | Axially movable piston: | ||
| This subclass is indented under subclass 58.1. Clutches + in which the rotating driving member
propels one or more pistons against the action of the clutching
fluid in a direction parallel to the axis of rotation.
SEE OR SEARCH CLASS:
| |||
| 60 | Transversely movable piston: | ||
| This subclass is indented under subclass 58.1. Clutches + in which the pistons move transversely
to the axis of rotation, against the action of the clutching fluid.
SEE OR SEARCH CLASS:
| |||
| 61 | Gear-pump type: | ||||||||
This subclass is indented under subclass 58.1. Clutches + in which the rotation is transmitted by
means of the clutching fluid, which is forced between meshed gears.
SEE OR SEARCH CLASS:
| |||||||||
| 62 | Plow-lifting type: | ||
| This subclass is indented under subclass 30. Clutches adapted for use in raising plows.
SEE OR SEARCH CLASS:
| |||
| 63 | Free-engine type: | ||
| This subclass is indented under subclass 30. Clutches for engine-drives designed to permit at times the
engine to run free without transmitting power.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
| 64 | Velocipede free wheel: | ||
| This subclass is indented under subclass 30. Clutches designed to permit a velocipede wheel to run freely
when the pedals are held.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
| 65 | Axially and transversely engaging: |
| This subclass is indented under subclass 30. Clutches in which the engaging elements of the clutches have both a motion parallel and a motion transverse to the axis of rotation. | |
| 66.1 | Axially engaging: |
| This subclass is indented under subclass 30. Subject matter wherein at least one engaging member is movable parallel to the axis of rotation to engage or disengage at least one other member. | |
| 66.2 | Conical or frustoconical: |
| This subclass is indented under subclass 66.1. Subject matter wherein engaging faces of the members are in the form of a cone or frustocone. | |
| 66.21 | Plural radially spaced surfaces: |
| This subclass is indented under subclass 66.2. Subject matter, with two or more concentric conical or frustoconical surfaces on each engaging member. | |
| 66.22 | Spring engaged: |
| This subclass is indented under subclass 66.2. Subject matter wherein the faces are moved to a torque transmitting position by the action of a recoilably yieldable member. | |
| 66.23 | Spring released: |
| This subclass is indented under subclass 66.2. Subject matter wherein the faces are moved to the disengaged position by the action of a recoilably yieldable member. | |
| 66.3 | Planar radially extending: |
| This subclass is indented under subclass 66.1. Subject matter wherein engaging faces of the members are disposed in a plane perpendicular to the rotation axis. | |
| 66.31 | Spring engaged: |
| This subclass is indented under subclass 66.3. Subject matter wherein the faces are moved to a torque transmitting position by the action of a recoilably yieldable member. | |
| 66.32 | Spring released: |
| This subclass is indented under subclass 66.3. Subject matter wherein the faces are moved to the disengaged position by the action of a recoilably yieldable member. | |
| 69 | Positive: | ||
| This subclass is indented under subclass 66.1. Clutches in which the axially movable members carry elements
that intermesh to transmit torque without slip.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
| 69.1 | Pivoting positive clutch element: |
| This subclass is indented under subclass 69. Subject matter wherein at least one of the members includes an element which is swingably mounted to a point of attachment thereto and is engageable with another of the clutch members. | |
| 69.2 | Plunger disconnect: |
| This subclass is indented under subclass 69. Subject matter wherein a finger moving generally transversely to the axis of rotation of the clutch engages cooperating structure (e.g., a screw) which causes the engaging members to move to the disengaged position. | |
| 69.3 | Pilot pawl: |
| This subclass is indented under subclass 69. Subject matter wherein a member is provided with a swinging finger which engages ratchet teeth and is effective to cause synchronous engagement of the intermeshed elements. | |
| 69.4 | Wheel hub clutched to axle: | ||||||
| This subclass is indented under subclass 69. Subject matter wherein the positive clutch engages a wheel
hub to an axle (e.g., in a four-wheel drive vehicle).
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||
| 69.41 | Fluid pressure: |
| This subclass is indented under subclass 69.4. Subject matter wherein one of the members of the positive clutch is shifted either into or out of engagement with another member by hydraulic or pneumatic pressure. | |
| 69.42 | Electromagnetic: |
| This subclass is indented under subclass 69.4. Subject matter wherein one of the members of the positive clutch is shifted axially either into or out of engagement with another member by the action of a solenoid or electric motor. | |
| 69.43 | Manual: |
| This subclass is indented under subclass 69.4. Subject matter wherein one of the members of the positive clutch is shifted axially into or out of engagement with another member by an operator manipulated knob or handle disposed on the hub or axle. | |
| 69.5 | Ball or roller: |
| This subclass is indented under subclass 69. Subject matter wherein at least one of the intermeshed elements is generally spherical or cylindrical and rotatably mounted relative to its corresponding member. | |
| 69.6 | Cylindrical pin: |
| This subclass is indented under subclass 69. Subject matter wherein at least one of the intermeshed elements is an elongated element of generally circular cross-section that is fixedly mounted to its corresponding member. | |
| 69.61 | Axial pin on only one member: |
| This subclass is indented under subclass 69.6. Subject matter wherein only one member carries an elongated element which extends generally parallel to the rotation axis. | |
| 69.62 | Pin engages aperture in other member: | ||
This subclass is indented under subclass 69.61. Subject matter wherein the other of the engaging elements
includes apertures to receive the elongated element.
| |||
| 69.63 | Radial pin: |
| This subclass is indented under subclass 69.6. Subject matter wherein the elongated element extends generally transverse to the clutch rotation axis. | |
| 69.7 | Axial-radial: |
| This subclass is indented under subclass 69. Subject matter wherein one of the members includes elements extending axially from the member and joined thereto only on a radially extending surface of the member, and the other engaging member has radially extending elements adapted to interlock with the axially extending elements, the radially extending elements being joined to its associated member at least on one circumferential surface of the member. | |
| 69.71 | Axially extending projection engages aperture: | ||||
This subclass is indented under subclass 69.7. Subject matter wherein the axially extending projection
engages an aperture in the other member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| 69.8 | Axial-axial: | ||
This subclass is indented under subclass 69. Subject matter wherein a pair of members each include elements
extending axially from the members and joined thereto solely on
a radially extending surface of the members.
| |||
| 69.81 | Sawtooth: |
| This subclass is indented under subclass 69.8. Subject matter wherein the axially extending elements on at least one of the coupled members has the form of a tooth having one engaging surface that lies in a plane substantially parallel to or including the rotational axis and an adjacent engaging surface that lies in a plane oblique to the rotational axis. | |
| 69.82 | Square tooth: |
| This subclass is indented under subclass 69.8. Subject matter wherein oppositely facing engaging surfaces on the elements of both members are each perpendicular to an end face of the element. | |
| 69.83 | With lead-in: |
| This subclass is indented under subclass 69.82. Subject matter wherein at least one of the elements includes a configuration to facilitate engagement. | |
| 69.9 | Radial-radial: |
| This subclass is indented under subclass 69. Subject matter wherein the members each include at least one element which extends radially and are joined to their respective member at least on one circumferential surface of the respective member. | |
| 69.91 | Outward projection on movable member: |
| This subclass is indented under subclass 69.9. Subject matter wherein only one of the members moves parallel to the axis of rotation and has at least one element which extends radially from an outer circumferential surface of said one member. | |
| 70 | Spreading: |
| This subclass is indented under subclass 66.1. Clutches in which two axially moving members are spread to engage the companion members of the clutch . | |
| 70.11 | Interposed, mating clutch-elements: | ||||||||
This subclass is indented under subclass 66.1. Device having an input (i.e., driving) shaft and an output
(i.e., driven) shaft rotatable about a common axis and at least
three members supported thereby in an array of adjacent members spaced
along the axis and co-axial with the shafts, the outer of said members
having surfaces facing opposite surfaces of one or more intermediate
members; one of said members being constrained to rotate with one
of the shafts, another of said members being constrained to rotate
with the other of the shafts but being movable along the common
axis, and a third of said members being movable along the common
axis; the device also having means for moving said members toward
one another for mutual engagement of the facing surfaces, whereby
the input shaft transmits its rotation to the output shaft when
the facing surfaces are mutually engaged.
SEE OR SEARCH CLASS:
| |||||||||
| 70.12 | With means to cool or lubricate clutch parts: | ||||
This subclass is indented under subclass 70.11. Device provided with means for reducing the temperature
of, or for supplying a friction-reducing fluid to, any of the members
or components of a clutch-assemblage.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| 70.13 | With removable or replaceable or interchangeable clutch parts: | ||||
This subclass is indented under subclass 70.11. Device wherein any of the members or sub-assemblies of the
device may be taken out of the clutch-assemblage, or put back into
the clutch-assemblage, or wherein one such member or sub-assembly
may be exchanged for another such member or sub-assembly.
| |||||
| 70.14 | Including surface characteristics of clutch-element: | ||||||||
This subclass is indented under subclass 70.11. Device having a distinctive, structurally-significant peculiarity
in the engaging face of the member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
| 70.15 | Axially tapered mating surfaces: | ||
This subclass is indented under subclass 70.14. Device wherein the engaging face of the member is distinctive
by being, at least in part, a frustoconical surface, and wherein
the engaging face of a member having mutual engagement with the
first-mentioned member is also a frustoconical surface that complements
the first-mentioned surface.
| |||
| 70.16 | With torque connection between clutch-element and its shaft: | ||
This subclass is indented under subclass 70.11. Device provided with means which (a) transmits rotational
force from an input shaft to a member supported thereby, or transmits
rotational force from another member to an output shaft that supports
the other member, and (b) simultaneously permits movement of either member
relative to its supporting shaft.
| |||
| 70.17 | Resilient torque connection (e.g., for damping vibration): | ||||
This subclass is indented under subclass 70.16. Device wherein said means is recoilably yieldable to a limited
extent in the rotation direction, whereby the permitted movement
is a limited degree of variation between the rotation of a shaft
and the rotation of the member supported thereby.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| 70.18 | Including chordally disposed connection: | ||||
This subclass is indented under subclass 70.17. Device wherein said means comprises a link or strap having
two ends, one end of which is attached to a clutch-element (or to
an equivalent rotating member such as a pressure plate or flywheel)
at a point on the clutch-element radially spaced from the axis of
rotation thereof, and the other end of which link is attached to
a driving or driven shaft (or to an equivalent rotating member integral
therewith) at a point on the shaft radially spaced from the axis
of rotation thereof and angularly spaced from the first-mentioned
attachment.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| 70.19 | Axially slidable connection: |
| This subclass is indented under subclass 70.16. Device wherein the means comprises portions integral with or secured to either shaft extending along or parallel to the axis of rotation thereof which portions connect the member to its supporting shaft for rotation and permit movement only in a direction parallel to said axis. | |
| 70.2 | Spline connection for multiple clutch-elements: |
| This subclass is indented under subclass 70.19. Device wherein the portions comprise gear-like teeth and grooves in the shaft (or drum) mating with complementary grooves and teeth in the member, (or comprise ribs and slots in the shaft (or drum) mating with complementary slots and protrusions in the member), and wherein a plurality of first members are in torque-transmitting connection with an input shaft, a plurality of second members are in torque-transmitting connection with an output shaft coaxial with the input shaft, and the first and second members alternate with one another along the axis of the shafts. | |
| 70.21 | With means to move multiple clutch-elements axially and sequentially: | ||||
This subclass is indented under subclass 70.11. Device including a multiple-element clutch-assemblage the
members of which are arranged along an axis of rotation, and provided
with means for moving the members along said axis, wherein said
means causes said members to engage one another in a predetermined
succession of mutual engagements along said axis, or to disengage
from one another in the same or an opposite succession of mutual
disengagements.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| 70.22 | With means to move clutch-element axially and latch into engaged or disengaged position: | ||||||
This subclass is indented under subclass 70.11. Device provided with means for moving a member along said
axis and with means additional to the member-moving means, which additional
means maintains the members in close contact with one another, or
maintains the members apart from one another, until the members
are released to permit movement thereof by member-moving means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
| 70.23 | With cam or wedge contacting clutch-element or pressure plate for axial movement thereof: | ||||||
This subclass is indented under subclass 70.11. Device provided with means for moving a member along said
axis wherein the member-moving means includes a movable component having
a surface in sliding engagement with a surface portion of a member
or of a pressure plate, the component surface and the member or
plate surface being so related and contoured that movement of the
component in a predetermined direction is converted into axial movement
of the member or pressure plate.
| |||||||
| 70.24 | By cam surface on bell-crank: |
| This subclass is indented under subclass 70.23. Device wherein the component comprises a lever pivoted between its ends for oscillation in a plane parallel to the axis of rotation of the clutch-assemblage, and the lever having the sliding surface at one of its ends, whereby oscillation of the component within the plane is converted into axial movement of the member of the pressure plate. | |
| 70.251 | With adjustable means to move clutch-element axially (e.g., to compensate for wear): | ||||
This subclass is indented under subclass 70.11. Device provided with member-moving means for moving
a first one of the members along said axis and with means ("additional
means") additional to the member-moving means, which additional
means is capable of axially changing the positional relationship
between the first member and another of the members mating therewith,
such change being additional to the movement effected by the member-moving
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| 70.252 | Automatic: |
| This subclass is indented under subclass 70.251. Device in which the additional means operates to change the positional relationship between the members without human assistance or intervention beyond that which occurs during normal use of the device. | |
| 70.26 | Including plural adjusting screws (e.g., to equalize pressure angularly): | ||
This subclass is indented under subclass 70.251. Device provided with two or more of said additional means,
each of which additional means comprises a bolt or threaded male
member rotatable relative to a nut or threaded female member.
| |||
| 70.27 | With spring means to move clutch-element axially: | ||
This subclass is indented under subclass 70.11. Device provided with means for moving a member along said
axis, wherein the member-moving means includes at least one elastic body
that tends to recover its shape when distorted.
| |||
| 70.28 | To separate engaged clutch-elements: | ||
This subclass is indented under subclass 70.27. Device wherein the elastic bodies tend to move the members
apart from one another.
| |||
| 70.29 | And actuator lever pivoted on pressure plate: | ||||
| This subclass is indented under subclass 70.27. Device wherein the member-moving means also includes a bar
oscillatable about a fulcrum by application of force thereto, which
fulcrum is connected to or mounted on a pressure plate, said fulcrum
being a pivot pin or the equivalent of a "knife edge" about
which the bar oscillates.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| 70.3 | With actuator lever pivoted on pressure plate or back plate to move clutch-element axially: | ||||
| This subclass is indented under subclass 70.11. Device provided with means for moving a member along said
axis, wherein the member-moving means includes a bar oscillatable
about a fulcrum by application of force thereto, which fulcrum is
connected to or mounted on a pressure plate or a cover plate, said
fulcrum being a pivot pin or the equivalent of a "knife edge" about
which the bar oscillates.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| Transversely engaged: | |
| This subclass is indented under subclass 30. Clutches in which the movable engaging element has movement transverse to the axis of rotation. | |
| 71 | Positive: |
| This subclass is indented under the unnumbered subclass, Transversely engaged. Clutches under Transversely engaged in which the clutch elements engage positively. | |
| 72 | Interior and exterior: |
| This subclass is indented under the unnumbered subclass, Transversely engaged. Clutches under Transversely engaged in which the transversely-moving member or members engage other members both exteriorly and interiorly. | |
| 73 | Opposing: |
| This subclass is indented under subclass 72. Clutches in which the member or members moving transversely grip an intermediate member. | |
| 74 | Interior: |
| This subclass is indented under the unnumbered subclass, Transversely engaged. Clutches under Transversely engaged in which the member moving transversely, becomes engaged with the interior of a rotatable member. | |
| 75 | Expanding: |
| This subclass is indented under subclass 74. Clutches in which two or more members, moving transversely away from the axis of rotation, engage the interior of the rim or rotatable member. | |
| 76 | Radial: |
| This subclass is indented under subclass 75. Clutches in which the motion of the transversely-engaging members is radial. | |
| 77 | Split ring: | ||
This subclass is indented under subclass 75. Clutches in which the transversely-moving member is a split
ring.
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| 78 | Cam operated: |
| This subclass is indented under subclass 77. Clutches in which the split ring is spread by means of a cam. | |
| 79 | Exterior: |
| This subclass is indented under the unnumbered subclass, Transversely engaged. Clutches under Transversely engaged, in which the transversely moving members engage the exterior of the rotating part. | |
| 80 | Strap: |
| This subclass is indented under subclass 79. Clutches in which the exterior transversely-moving member is a flexible strap or band. | |
| 81 | Multiple folds: |
| This subclass is indented under subclass 80. Clutches in which the strap encircles the drum or wheel in two or more folds. | |
| 82 | Operators: |
| This subclass is indented under subclass 30. Devices for actuating clutches. | |
| 83 | Multiple for same clutch: |
| This subclass is indented under subclass 82. Devices which include two or more devices for operating the same clutch. | |
| 84.1 | Electric or magnetic: | ||||||||||||||||||||||||||
| This subclass is indented under subclass 82. Subject matter, wherein frictional or interlocking engagement
of driving and driven clutch parts is effected by attraction between
elements having opposite potential or polarity.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||
| 84.2 | Plural coils: |
| This subclass is indented under subclass 84.1. Subject matter, wherein clutch engagement is effected by the attraction between poles of opposite magnetic polarity and these poles are the result of a magnetic field produced by the flow of electric current in two or more distinct windings of conductors. | |
| 84.21 | Plural armatures: |
| This subclass is indented under subclass 84.2. Subject matter, wherein two or more windings effect movement of two or more independently movable, magnetizable members. | |
| 84.3 | Including permanent magnet: |
| This subclass is indented under subclass 84.1. Subject matter, wherein a material which naturally attracts iron provides opposite polarities that affect engagement of the driving and driven clutch parts. | |
| 84.31 | And electromagnet: |
| This subclass is indented under subclass 84.3. Subject matter, wherein a field produced by the flow of electric current in a coiled conductor also affects engagement of the clutch parts. | |
| 84.4 | Electrostatic: |
| This subclass is indented under subclass 84.1. Subject matter, wherein engagement of driving and driven clutch parts is effected by the electro-adhesive forces between a conductive member and a semi-conductive member subjected to an electric-potential difference. | |
| 84.5 | Air gap adjustment: | ||||
| This subclass is indented under subclass 84.1. Subject matter, wherein structure is provided to set to
a predetermined value a distance between elements of opposite magnetic
polarities when the clutch parts are in a disengaged condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| 84.51 | Automatic: | ||
| This subclass is indented under subclass 84.5. Subject matter, wherein the distance is set without manipulation
by an operator.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
| 84.6 | Rotary electric motor is clutch actuator: |
| This subclass is indented under subclass 84.1. Subject matter, wherein the attraction between elements of opposite magnetic polarity produces a relative rotation between the elements which, through a motion converting mechanism, effects engagement of driving and driven clutch parts. | |
| 84.7 | Mechanical force increasing means: |
| This subclass is indented under subclass 84.1. Subject matter, wherein structure is provided to amplify a clutch-engaging force after an initial clutch engagement is effected by the attraction between elements of opposite magnetic polarity. | |
| 84.8 | Operator for transversely engaging elements: | ||
| This subclass is indented under subclass 84.1. Subject matter, wherein driving and driven parts rotate
about an axis and are engageable by a motion in a direction perpendicular
to said axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
| 84.81 | Coil spring: | ||
| This subclass is indented under subclass 84.8. Subject matter, wherein one of the driving and driven clutch
parts is an elongated member wound into a helix shape that is adapted
to unwind into or out of frictional engagement with the other clutch
part.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
| 84.9 | Operator for axially engaging elements: |
| This subclass is indented under subclass 84.1. Subject matter, wherein the driving and driven clutch parts rotate about an axis and are engageable by a motion in a direction parallel to said axis. | |
| 84.91 | Interposed friction elements: | ||
| This subclass is indented under subclass 84.9. Subject matter, wherein frictional engagement is provided
by three or more friction elements with one or more of the friction
elements being sandwiched between adjacent elements.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
| 84.92 | Positively engaging elements: | ||
| This subclass is indented under subclass 84.9. Subject matter, wherein the driving and driven clutch parts
carry formations which interlock to transmit torque without slip.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
| 84.93 | Magnetic flux path spaced from engaging elements: |
| This subclass is indented under subclass 84.9. Subject matter, wherein the engagement is effected by a magnetic circuit which bypasses the engaging surfaces of the clutch parts. | |
| 84.94 | Specified torque transmitting spring: |
| This subclass is indented under subclass 84.9. Subject matter, wherein one or more of the elements moving parallel to the axis is connected to one of the driving and driven clutch parts by one or more resilient members and wherein the shape, arrangement, or material of the one or more resilient members is cited as significant. | |
| 84.941 | Nonmetallic: |
| This subclass is indented under subclass 84.94. Subject matter, wherein the one or more resilient members is formed of a material other than metal. | |
| 84.95 | With slip rings: |
| This subclass is indented under subclass 84.9. Subject matter, wherein an electromagnet is carried by and rotates with one of the driving and driven parts and electric current is supplied to the electromagnet by a connection including brushes and rotary contacts. | |
| 84.951 | With pulley or gear: |
| This subclass is indented under subclass 84.95. Subject matter, wherein torque is transmitted to or from one of the driving and driven clutch parts by means of a toothed member or a torque transmitting belt or chain. | |
| 84.96 | Fixed concentric coil: |
| This subclass is indented under subclass 84.9. Subject matter, wherein a stationary, annular electromagnetic coil surrounds the clutch axis and magnetizes one of the driving and driven clutch parts to provide a pole piece which attracts the other of the driving and driven clutch parts into engagement therewith. | |
| 84.961 | With pulley or gear: |
| This subclass is indented under subclass 84.96. Subject matter, wherein torque is transmitted to or from one of the driving and driven clutch parts by means of a toothed member or a torque transmitting belt or chain. | |
| 85 | Fluid pressure: | ||||||
| This subclass is indented under subclass 82. Devices in which the action of fluid under pressure is used
to operate the clutch.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||
| 86 | Double acting: |
| This subclass is indented under subclass 85. Devices in which the fluid-pressure is utilized both to set the clutch in an engaging position and to release it. | |
| 87.1 | Multiple clutches: | ||||
| This subclass is indented under subclass 85. Device in which the fluid under pressure is applied to clutch-actuator
means for engaging or disengaging one or more of a plurality of clutches.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| 87.11 | Having independent operators: | ||
This subclass is indented under subclass 87.1. Device wherein the functioning of one clutch-actuator is
unrelated to the functioning of another clutch-actuator.
| |||
| 87.12 | Responsive to rotational speed of clutch-element: | ||
| This subclass is indented under subclass 87.11. Device, whose clutch includes a rotating portion, and whose
clutch actuator is pressurized upon the attainment of a predetermined
angular velocity of the rotating portion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
| 87.13 | With selective distributor for fluid pressure: | ||||
| This subclass is indented under subclass 87.11. Device provided with a multiway valve unit effective to
direct the pressurized fluid to the actuator for any, all, or none
of the clutches.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
| 87.14 | Alternatively operative clutches: | ||||
This subclass is indented under subclass 87.1. Device having only two clutches, wherein either clutch,
(but not both simultaneously) is in force-transmitting relationship.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
| 87.15 | Clutches coaxial with operators: |
| This subclass is indented under subclass 87.14. Device wherein both clutches are rotatable about the same axis of rotation and the means that actuates each clutch is a pressure-receiving member that acts (i.e., moves under fluid-pressure) along said axis of rotation. | |
| 87.16 | Common or interconnected operator(s): | ||
This subclass is indented under subclass 87.15. Device wherein both clutches are actuated by the same pressure-receiving
member or by pressure-receiving members that are secured together.
| |||
| 87.17 | Operator between clutches: |
| This subclass is indented under subclass 87.16. Device wherein the pressure-receiving member is located in the space separating the clutches. | |
| 87.18 | With selective distributor for fluid pressure: | ||||
| This subclass is indented under subclass 87.14. Device provided with a multiway valve unit effective to
direct the pressurized fluid to the actuator for either one of the
clutches or neither of them.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
| 87.19 | Having neutral position: | ||
This subclass is indented under subclass 87.18. Device wherein the unit can be caused to apply no pressure
to the actuator for either clutch.
| |||
| 88 | Flexible motor: | ||
| This subclass is indented under subclass 85. Devices in which the fluid-pressure is applied through a
motor having flexible walls.
SEE OR SEARCH CLASS:
| |||
| 89.1 | Weight operated: | ||
| This subclass is indented under subclass 82. Structure, wherein an operating mechanism of the clutch
is activated by gravitational force.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
| 89.2 | Spring engaged: |
| This subclass is indented under subclass 82. Structure, wherein the clutch is operated to the engaged position by a resilient means. | |
| 89.21 | Cam release: |
| This subclass is indented under subclass 89.2. Structure, wherein an element having an eccentric surface or groove is employed to release the clutch in opposition to the resilient means. | |
| 89.22 | Belleville disc spring: |
| This subclass is indented under subclass 89.2. Structure, wherein the resilient means is a relatively thin, resilient annular disc that is dished or tapered in shape. | |
| 89.23 | Push-type: |
| This subclass is indented under subclass 89.22. Structure, wherein the disc spring has radially, inwardly directed fingers and is fulcrumed such that the fingers are moved in a direction axially toward a clutch plate in order to release engagement. | |
| 89.24 | Pull-type: |
| This subclass is indented under subclass 89.22. Structure, wherein the disc spring has radially, inwardly directed fingers and is fulcrumed such that the fingers are moved in a direction axially away from a clutch plate in order to release engagement. | |
| 89.25 | Geometric configuration: |
| This subclass is indented under subclass 89.22. Structure, wherein significance is attributed to a specific shape of the spring structure. | |
| 89.26 | Plural coil springs spaced from clutch axis: |
| This subclass is indented under subclass 89.2. Structure, wherein the engaging force is provided by a multiplicity of helical springs having axes positioned radially spaced from the clutch axis. | |
| 89.27 | Coil spring coaxial to clutch axis: |
| This subclass is indented under subclass 89.2. Structure, wherein the resilient means is a helical spring concentric with the clutch axis. | |
| 89.28 | Transversely engaged: |
| This subclass is indented under subclass 89.27. Structure, wherein an engaging element moves transversely to the axis of the rotation of the clutch. | |
| 89.29 | Quick throw spring: |
| This subclass is indented under subclass 89.2. Structure, wherein a mechanism initially deflects or compresses a spring after which the spring force is released allowing it to quickly move the clutch into the engaged position. | |
| 90 | Electric release: |
| This subclass is indented under subclass 89.2. Devices in which electric action is employed to release the clutch. | |
| 91 | Fluid release: |
| This subclass is indented under subclass 89.2. Devices in which the clutch is released by fluid action. | |
| 92 | One-direction apply and release: |
| This subclass is indented under subclass 82. Devices in which the clutch is operated to engagement and release by successive movements of the operator in the same direction. | |
| 93 | Cam: |
| This subclass is indented under subclass 82. Devices in which the clutch is operated to engaging position by some form of cam. | |
| 94 | Screw: |
| This subclass is indented under subclass 82. Devices in which the clutch is operated to engaging position by a screw. | |
| 95 | Handwheel: |
| This subclass is indented under subclass 82. Devices in which some form of rotating manually-controlled handle is used to operate the clutch. | |
| 96 | Central pin: |
| This subclass is indented under subclass 82. Devices in which a pin or rod in the axle of rotation operates the clutch. | |
| 97 | Screw operated: |
| This subclass is indented under subclass 96. Devices in which the central pin operator is actuated by a screw. | |
| 98 | Shipper saddles: |
| This subclass is indented under subclass 82. Devices which include elements known as "shipper-saddles" for operating the clutch. | |
| 99 | Lever systems: |
| This subclass is indented under subclass 82. Devices includes a simple lever or combination of levers for actuating the clutch. | |
| 100 | Follow-up: | ||
| This subclass is indented under subclass 82. Devices in which the same device operates the clutch and
continues to operate the shaft after the clutch is in engagement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
| 101 | Releasing: |
| This subclass is indented under subclass 82. Devices for moving the clutch to an inoperative position. | |
| 102 | Check of driven member: | ||
| This subclass is indented under subclass 82. Devices which, upon the driven member or operated connection
being stopped or checked, positively operates the clutch to released
position.
SEE OR SEARCH CLASS:
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| 103 | Speed responsive: |
| This subclass is indented under subclass 82. Devices for operating the clutch in response to speed. | |
| 104 | Fixed-speed release: |
| This subclass is indented under subclass 103. Devices in which speed-responsive elements are so arranged as to produce slipping of the clutch if the critical speed is exceeded. | |
| 105 |