Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 7310988 | Drive 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 |
| 7217213 | Additive 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 |
| 7174818 | Click-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 |
| 7077245 | Torque 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 |
| 7059085 | Vehicle 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 |
| 7033663 | Functionally 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 |
| 7021446 | Centrifugal 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 |
| 6880686 | Transmission 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 |
| 6868323 | Vehicle 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 |
| 6851533 | Spring 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 |
| 6853892 | Strategy 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 |
| 6723023 | Vehicle 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 |
| 6609436 | Vehicle 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 |
| 6461212 | Automatic 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 |
| 6458466 | Brake 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 |
| 6446773 | Viscous 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 |
| 6332518 | Device 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 |
| 6267211 | Drive 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 |
| 6155956 | Vehicle 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 |
| 6149543 | Compounder 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 |
| 6120257 | Power 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 |
| 6070705 | Device 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 |
| 6066065 | Compounder 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 |
| 5957251 | Brake 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 |
| 5927453 | Device 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 |
| 5915514 | Clutch 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 |
| 5700227 | Automatic 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 |
| 5653509 | Blockage-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 |
| 5575365 | Overspeed 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 |
| 5573091 | Electrically 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 |
| 5555962 | Device 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 |
| 5359848 | Device 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 |
| 5279503 | Ram 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 |
| 5156681 | Process 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 |
| 5076406 | Radially 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 |
| 5042749 | Mechanism 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 |
| 5038902 | Clutch 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 |
| 4905804 | Control 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 |
| 4896754 | Electrorheological 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 |
| 4895210 | Clutch-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 |