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Class 192/12R - CLUTCH AND BRAKE


Subclass of Class 192 - Clutches and power-stop control
Definition: Mechanism in which a clutch or brake is applied alternately
No. of patents: 62
Last issue date: 12/25/2007


1    
NumberTitleIssue Date
7310988Drive device for a mechanical press
The invention provides a drive device for a mechanical press with a two-step speed reduction mechanism for driving a slide of the mechanical press and includes a drive pinion provided concentrically with a crankshaft, a main gear mounted on said crankshaft, intermed...
12/25/2007
7217213Additive gearshift with differential gears
This invention is a mechanical gearbox for every vehicle or machinery that needs one. It works on the grounds of the differential gear as a way to obtain mechanical addition or subtraction of the motion of two different shafts. Inside this mechanism an input-shaft-m...
05/15/2007
7174818Click-type torque wrench and improved cam assembly therefor
A cam assembly for a click-type torque wrench includes an elongated plunger body having opposed ends and having a deep cavity formed axially in one end and terminating at an end face disposed with intermediate the ends, the end face having a cam seat formed therein ...
02/13/2007
7077245Torque controlled brake
The structure and operation of a brake 1′ associated with an electric motor driven chain hoist 2′, according to FIG. 6, are exactly the same as those of the manually operated system, except that a shaft 4a′ of the electric mo...
07/18/2006
7059085Vehicle window arrangement having an angled opening for inserting a cable end during assembly
A window-raising device for a vehicle provides a two-cable winding drum, a hood to support and partially surrounding the drum on a support plate to form a cable passage. A flange extends from the winding drum to support sliding movement of an end of one of the cable...
06/13/2006
7033663Functionally graded friction material
A functionally graded friction material 18 having improved wear resistance and thermal conductivity with fibers 10 and heat conducting elements 12 disposed in an arrangement that conducts heat away from a first surface 20 to a second surf...
04/25/2006
7021446Centrifugal clutch with shoe retaining feature
A centrifugal clutch for coupling the rotational force of a driving member to a driven member includes a hub that is adapted to be secured at substantially its center to the driving member. The hub has a plurality of arms extending substantially radially from its ce...
04/04/2006
6880686Transmission shaft rotation sensor
A method for use with an apparatus such as a tractor having an engine and an output device, such as a mower deck or snow thrower, comprising the steps of determining a rotational direction of a rotatable shaft as one of a forward direction and a reverse direction an...
04/19/2005
6868323Vehicle brake control system
A vehicle brake control system includes an improved ACC system for controlling the operation of a brake actuator and a throttle actuator, based on a signal from a preceding vehicle detector such as a radar device, so that a subject vehicle tracks a preceding vehicle...
03/15/2005
6851533Spring brake actuator
A spring brake actuator is mounted with its shaft connected to the rotational operative shaft of a service brake actuator. The spring brake actuator has a clock spring, which is mechanically charged at a rotation of the actuator shaft in a brake release direction. I...
02/08/2005
6853892Strategy to control a clutch to connect an engine to a powertrain of a hybrid electric vehicle
This invention is a control system for a clutch for connecting an engine to the powertrain of an HEV. The system includes a controller programmed to determine a filtered speed error of the engine and a starter/motor and to determine an engine run command. Monitoring...
02/08/2005
6723023Vehicle auxiliary braking system
A vehicle auxiliary braking system is provided to accomplish a braking effect similar to engine braking inexpensively, to extend the life of the brakes, and to reduce the work cycle time in order to improve work efficiency. The system has a centrifugal sensor 20
04/20/2004
6609436Vehicle brake pedal apparatus
A vehicle brake pedal has first and second master cylinders and the first pedal arm removably attached to the vehicle having a brake pedal foot pad movably attached thereto. A second brake pedal arm is operatively coupled to the first master cylinder and ...
08/26/2003
6461212Automatic start control and clutch of toy engine powered by high pressure gas
A starting device of a toy engine comprises a spring, a starting piece, and a unidirectional bevel gear. The motion of the spring between the two fulcrums serves to ensure that the control rod is kept securely in place at a disengaging position and an eng...
10/08/2002
6458466Brake or clutch components having a ceramic-metal composite friction material
A braking component such as a brake pad, brake rotor, brake drum or clutch disk is comprised of a metal substrate having a friction material laminated on at least a portion of at least one face of the metal substrate, the friction material being a ceramic...
10/01/2002
6446773Viscous coupling with symmetric freewheeling assembly
A viscous coupling having two rotatable parts in the form of a hub and a housing for the transmission of torque between the rotatable parts caused by a positive speed differential between the rotatable parts, which are supported inside one another, which ...
09/10/2002
6332518Device for overload protection and braking of a machine part driven by motor
A device for overload protection and for braking a machine part driven by a motor (2), in particular, a tool driven by a cam gear in a stamping and/or bending machine, comprises a module (3), an overload clutch (4) disengaging after exceeding a torque thr...
12/25/2001
6267211Drive unit for machinery, especially mining machinery
A drive unit for a mining machine such as a mining plow or conveyor drives a sprocket wheel of the chain thereof by an electric motor through a drive train having a turbocoupling and a transmission driven by the motor. A free-shifting clutch is provided i...
07/31/2001
6155956Vehicle with automatic clutch
A vehicle equipped with a system (30) for automatically disengaging and engaging a friction clutch (13) coupling between an engine (11) and a transmission (16). The vehicle is also equipped with an automatic brake system (34) for automatically applying an...
12/05/2000
6149543Compounder assembly with controllable overrunning clutch
A transmission compounder assembly having a one-way clutch between an input shaft and an output shaft to establish a direct-ratio drive path therebetween. A planetary gearset can be selectively engaged to establish a compound-ratio drive path between the ...
11/21/2000
6120257Power transmission apparatus
A power transmission apparatus which can function as a torque limiter during an overload condition. A Belleville spring is provided for generating mutual frictional engagement in areas between a flange part integral to an inner holder member, a washer, ar...
09/19/2000
6070705Device for overload protection and braking of a machine part driven by a motor
A device for overload protection and for braking a machine part driven by a motor (2), in particular, a tool driven by a cam gear in a stamping and/or bending machine, comprises a module (3), an overload clutch (4) disengaging after exceeding a torque thr...
06/06/2000
6066065Compounder assembly for automatic transmission
A transmission compounder assembly comprising an input shaft, an output shaft and a one-way clutch operable to establish a direct-ratio drive path between the shafts. A planetary gearset can be selectively engaged to establish a compound-ratio drive path ...
05/23/2000
5957251Brake or clutch components having a ceramic-metal composite friction material
A braking component such as a brake pad, brake rotor, brake drum or clutch disk is comprised of a metal substrate having a friction material laminated on at least a portion of at least one face of the metal substrate, the friction material being a ceramic...
09/28/1999
5927453Device for overload protection and braking of a machine part driven by a motor
A device for overload protection and for braking a machine part driven by a motor (2), in particular, a tool driven by a cam gear in a stamping and/or bending machine, comprises a module (3), an overload clutch (4) disengaging after exceeding a torque thr...
07/27/1999
5915514Clutch unit for automatically cancelling connection between input source and output shaft
A clutch comprises an inner rotatable member 1, an outer rotatable member 2 serving as an output shaft, a plurality of rollers 3 serving as torque transmission members disposed between the Inner and outer rotatable members, and a retainer 4 serving as an ...
06/29/1999
5700227Automatic clutch control
In a method of operating an automatic clutch arranged between an engine and a drive train of a vehicle during low speed operation of the vehicle which has a brake system, a clutch control unit and sensors supplying to the clutch control unit information c...
12/23/1997
5653509Blockage-protected drive system with a centrifugal clutch, and sawing apparatus driven through said clutch
To prevent overloading of a clutch interposed between a driving, or input shaft (2, 112) and a driven, or output shaft (4, 115) upon blockage of the output shaft while continuous rotary power is being transmitted to the input shaft, a plurality of centrif...
08/05/1997
5575365Overspeed protection system for a vehicle
The invention provides an overspeed protection system for a vehicle such as a mine skip travelling along a vertical set of rails 60. In use an idler wheel 62 in contact with a rail 60 rotates a shaft 12 forming part of a clutch 10 at speeds which are dire...
11/19/1996
5573091Electrically powered or manually driven clutch and brake assembly for electric winch
Electrically powered or manually driven clutch and brake mechanism for an electric wince cooperate with a transmission mechanism. The clutch mechanism is provided with a thrust bearing on a clutch shaft and a large clutch gear is then inserted thereon. A ...
11/12/1996
5555962Device for overload protection and braking of a machine part driven by a motor
A device for overload protection and for braking a machine part driven by a motor (2), in particular a tool driven by a cam gear in a stamping and/or bending machine, comprises a brake (3), an overload clutch (4) disengaging after exceeding a torque thres...
09/17/1996
5359848Device for operation of a gas turbine engine thrust reverser system
A device is provided for hand operation of a gas turbine engine thrust reversing system. Torque is applied to an input element and transmitted to an output element by way of a torque limiting means arranged to substantially remove the torque from the outp...
11/01/1994
5279503Ram air electric drive water pump
A coolant pump system driven initially by an electric motor in-line with the pump shaft to the pump housing incorporates a ram air-assisted cooling system. The ram air-assisted cooling system includes an electric motor whose rotating shaft drives the prim...
01/18/1994
5156681Process module dispense arm
A drive mechanism which permits both rotational and vertical translation of a fluid dispense arm within a wafer processing system. A motor drives a brake/clutch coupling which, through selective actuation and the utilization of two drive gears, causes sel...
10/20/1992
5076406Radially interlocking clutch brake
An interlocking clutch brake provides first and second parts adapted to radially fit together to form a disc-shaped body having a central aperture for engaging a clutch shaft. Both first and second parts are U-shaped, and are interlocked together by means...
12/31/1991
5042749Mechanism for limiting rotation of a rotatably mounted shaft
A mechanism (10) for limiting rotation of a rotatably mounted first shaft (12) in accordance with the invention includes a housing (28) in which the first shaft is rotatably supported; a torque input (14) coupled to the first shaft; and a torque output (1...
08/27/1991
5038902Clutch device for a transmission wheel and a transmission shaft
This invention relates to a clutch device for a transmission wheel and a transmission shaft. Two brake rings surround a hub axle and are contained in a brake hub. The first brake ring is intermediate the hub axle and the second brake ring and arranged so ...
08/13/1991
4905804Control levers
A power take-off control lever arrangement in which a single control lever 32 controls an engine speed power take-off clutch C2, a ground speed power take-off clutch C2 and a power take-off brake B. The control lever 32 is movable between positions C1' an...
03/06/1990
4896754Electrorheological fluid force transmission and conversion device
An electrorheological fluid torque transmission and conversion system provides for variable control of torque in clutch and brake applications. Communication of mechanical energy between the drive elements is accomplished by magnetic coupling to eliminate...
01/30/1990
4895210Clutch-brake steering for small agricultural machines
The type of machine in which the invention finds maximum utility is the self-propelled, user-guided garden machine such as a rotary tiller. A typical machine of that genre has a straight-through axle without a differential and opposite ends of the axle pr...
01/23/1990
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