Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7367358 | Medical fluid delivery system and method relating to the same A medical fluid delivery system for the use in the delivery of medical fluids. The medical fluid delivery system may include a pumping system, a disposable medical fluid line set and a valve operating system. The disposable tubing line set may include valves adapted... | 05/06/2008 |
| 7197385 | Method and apparatus for adjusting a contact force in a motor vehicle drive train A method and apparatus for regulating the contact force between two frictionally-engaged torque-transmitting components of a motor vehicle drive system. A contact force between an endless torque-transmitting device and a pair of conical disks of a continuously varia... | 03/27/2007 |
| 7178656 | Hydraulic controlled fan clutch with integral cooling A hydraulically controlled fan drive system (12) having a method of engagement includes a housing assembly (20) containing a hydraulic fluid (48) and an engaging circuit (36). The engaging circuit (36) includes a pitot tube (152... | 02/20/2007 |
| 7001298 | Clutch system for a transmission A clutch system for a transmission with one clutch (1) which comprises one disc carrier (3) and one servo mechanism (10) situated within the disc carrier (3) with dynamic pressure balance for actuating the clutch (1) and with a pla... | 02/21/2006 |
| 5845755 | Method of speed control of a friction clutch in a drive train and a drive engine and drive unit for execution of the method A method and device for speed control of a friction clutch in a drive unit having a drive engine and in which the friction clutch includes at least two clutch parts that can be pressed together for purposes of torque transfer. The first clutch part is cou... | 12/08/1998 |
| 4842115 | Hydraulic clutch A hydraulic clutch for transmitting torque from an input rotating member to an output rotating member when friction plates are brought into engagement with each other. Hydraulic fluid having pressure depending upon rotational speed of an input shaft is su... | 06/27/1989 |
| 4688665 | Apparatus for preventing engine stall The invention relates to a control apparatus for a clutch disc assembly drivingly associated with an engine. Protection from engine stall resulting for inertia loads downstream of the engage clutch disc assembly instantaneously exceeding available engine ... | 08/25/1987 |
| 4586594 | Clutch assembly capable of being engaged by fluid pressure depending on centrifugal force A clutch assembly is preferably designed as a multiple-disc clutch. Rotating with one clutch half (22) is a clutch-engaging piston (26) and a pressure chamber (25) into which fluid may be admitted. Against the force of a spring (29), the piston may be sub... | 05/06/1986 |
| 4583626 | Centrifugally actuated wet plate clutch A centrifugally actuated wet plate clutch which is actuated by the centrifugal pressure of its cooling and lubricating fluid. An input housing defines a radial cavity which is partially filled with the fluid and contains sets of interleaved clutch plates ... | 04/22/1986 |
| 4509627 | Hydraulic centrifugal clutch A hydraulic centrifugal clutch comprises an input shaft; an output shaft; a hydraulic servomechanism including a fixed cylinder fixed to said input shaft, an axially movable piston mounted on said input shaft and forming a first cylindrical chamber in com... | 04/09/1985 |
| 4471861 | Speed and temperature responsive drive apparatus Speed and temperature responsive drive apparatus includes a friction clutch which may be interposed between a vehicle engine and its associated cooling system fan. The clutch is biased toward engagement by a conventional spring and also by a thermal sprin... | 09/18/1984 |
| 4457417 | Torque responsive fluid coupling device A fluid coupling device is disclosed which is basically of the torque responsive type. The fluid coupling includes a separator plate (31) to separate the fluid chamber into a working or operating chamber (33) and a reservoir chamber (35). The separator pl... | 07/03/1984 |
| 4238020 | Centrifugal clutch with an overspeed relief valve and clutch modulation A fluid pressure operated clutch which transmits torque from an engine output shaft to a transmission input shaft, including a rotatable flywheel connected to the output shaft, an adapter connected to the flywheel for rotation with the flywheel, the adapt... | 12/09/1980 |
| 4223770 | Shaft drive alternately for both directions of rotation A shaft drive alternately for both directions of rotation, comprises, a shaft rotatably supported on bearings having first and second turbines connectable thereto, each including a respective first and second turbine wheel freely rotatable on the shaft in... | 09/23/1980 |
| 3978956 | Delayed-action centrifugal clutch transmission A delayed-action transmission whereby mechanical coupling between a driven member and a driving member is effected by centrifugal force and the mechanical coupling is controllably delayed.... | 09/07/1976 |
