| Patents for F16D 13 - Friction clutches (12,158) | 
|---|
| 09/26/1989 | CA1260415A1 Vibration-damping clutch and pinion assembly  | 
| 09/21/1989 | DE3807702A1 Clutch disc with radial elasticity  | 
| 09/20/1989 | EP0332629A1 Automatic adjusting device  | 
| 09/13/1989 | CN2044300U Two-way liquid controlled friction clutch  | 
| 09/12/1989 | US4865174 Cooling mechanism of pull-type clutch  | 
| 09/06/1989 | EP0331490A2 Shaft-locking device  | 
| 09/06/1989 | EP0331362A1 Drive engagement delay device  | 
| 09/06/1989 | EP0331264A1 Friction clutch for a motor vehicle transmission, and method of manufacturing same  | 
| 09/06/1989 | CN2043933U Release yoke of automobile clutch with power saving function  | 
| 09/05/1989 | US4863004 Spring clutch assembly  | 
| 08/30/1989 | EP0247049B1 Start-up and shifting clutch mechanism  | 
| 08/29/1989 | US4860873 Lubricating system for friction engaging means in transmission  | 
| 08/29/1989 | US4860872 Friction disc assembly  | 
| 08/29/1989 | US4860871 Clutch friction disc with predamper  | 
| 08/29/1989 | CA1258817A1 Assembly method and apparatus for spline-type connection  | 
| 08/22/1989 | US4858742 Clutch disk with cushioned friction element assembly  | 
| 08/16/1989 | EP0328381A2 Clutch plate assembly  | 
| 08/15/1989 | US4856635 Starting clutch for a continuously variable transmission  | 
| 08/15/1989 | US4856634 Clutch  | 
| 08/08/1989 | US4854029 Method of fixing a part for transmitting torque to a plate of a clutch  | 
| 08/02/1989 | CN2042130U Front-wheel clutch  | 
| 08/01/1989 | US4852711 Clutch disc  | 
| 07/26/1989 | CN1034251A Friction disc assembly  | 
| 07/18/1989 | US4848555 Twin-disc clutch  | 
| 07/18/1989 | US4848554 Intermediate plate positioning mechanism for twin clutch  | 
| 07/18/1989 | US4848553 Friction laminate and disk assembly  | 
| 07/18/1989 | US4848552 Damper disc  | 
| 07/18/1989 | US4848550 Load transmission lever for pull-type clutch  | 
| 07/13/1989 | WO1989006326A1 Twin clutch  | 
| 07/11/1989 | US4846330 Clutch cover assembly  | 
| 07/11/1989 | US4846329 Friction element for clutch  | 
| 07/11/1989 | US4846326 Carbon to carbon friction clutch  | 
| 07/11/1989 | US4846260 Cooling system  | 
| 07/05/1989 | EP0323036A1 Friction facing material and carrier assembly  | 
| 07/04/1989 | US4844226 Clutch cover assembly  | 
| 07/04/1989 | US4844225 Flywheel assembly  | 
| 07/04/1989 | US4844224 Flywheel assembly  | 
| 06/29/1989 | WO1989005927A1 Friction facing material and carrier assembly  | 
| 06/29/1989 | WO1989005699A1 Method of manufacturing diaphragm springs  | 
| 06/28/1989 | EP0322265A1 Clutch control device, notably for motor vehicles  | 
| 06/21/1989 | EP0320955A2 Clutch plate  | 
| 06/21/1989 | CN2039769U Automatic clutch for front wheel driving  | 
| 06/20/1989 | US4840262 Clutch plate  | 
| 06/13/1989 | US4838107 Vibration damping rotary drive element  | 
| 06/06/1989 | US4836351 Motor vehicle clutch  | 
| 06/06/1989 | US4836350 Disc-shaped body for use in clutch plates  | 
| 05/24/1989 | EP0316403A1 Wrap spring clutch and method of manufacturing the same.  | 
| 05/24/1989 | EP0231214B1 Rolled spring transmission  | 
| 05/24/1989 | DE3832950A1 Variable multi-stage hysteresis mechanism  | 
| 05/24/1989 | DE3738423A1 Mehrscheibenkupplung mit lueftwegbegrenzung der zwischenplatte Multi-plate clutch with lueftwegbegrenzung between the plate  | 
| 05/23/1989 | US4832164 Adjuster ring lock strap adapted for use in manual wear compensating clutches  | 
| 05/18/1989 | DE3837187A1 Friction clutch with at least one clutch disc fixed in a circumferential and axial direction on one of the shafts to be connected by the clutch as required  | 
| 05/18/1989 | DE3810805C1 Cooling device  | 
| 05/16/1989 | US4830160 Clutch assembly  | 
| 05/09/1989 | US4829221 Method of controlling a motor-driven clutch  | 
| 05/09/1989 | US4828092 Friction clutch and method of making a diaphragm spring therefor  | 
| 05/09/1989 | US4828089 Closed loop fluid flow, grooves in surface  | 
| 05/09/1989 | US4828083 Friction clutch utilizing a progressive engagement action  | 
| 05/03/1989 | DE3735720A1 Reibungskupplung mit blechgehaeuse und zentrierstift Friction clutch with blechgehaeuse and center pin  | 
| 05/03/1989 | CN1032696A Friction disk for motor vehicle clutch  | 
| 04/19/1989 | EP0311844A2 Clutch disc  | 
| 04/18/1989 | US4821860 Friction facing material and carrier assembly  | 
| 04/12/1989 | CN1003882B Fluid coupling device having improved heat dissipation  | 
| 04/05/1989 | EP0310328A2 Starting clutch for a continuously variable transmission  | 
| 04/05/1989 | CN2035411U Torsion spring clutch  | 
| 04/04/1989 | US4817775 Pre-assembled automotive clutch cover assembly  | 
| 04/04/1989 | US4817772 Shiftable friction clutch  | 
| 04/04/1989 | US4817771 Spring clutch with engageable first and second helical clutch springs  | 
| 03/29/1989 | CN2035019U Automatic clutch for vehicle fan  | 
| 03/28/1989 | US4815189 Method of converting a friction clutch assembly  | 
| 03/23/1989 | WO1989002545A1 Cooling apparatus for pull type clutch  | 
| 03/21/1989 | US4813523 Clutch disc  | 
| 03/21/1989 | US4813522 Clutch drum  | 
| 03/21/1989 | US4813295 Fly-wheel unit with disengageable friction device  | 
| 03/14/1989 | US4811826 Friction clutch with interlocking flywheel and clutch cover  | 
| 03/14/1989 | US4811474 Friction clutch  | 
| 03/08/1989 | EP0305582A1 Method of manufacture of friction discs  | 
| 03/07/1989 | US4809834 Multiple plate clutch release proportioning device  | 
| 02/28/1989 | CA1250536A1 Drive strap system  | 
| 02/22/1989 | EP0304169A2 Torsional vibration damping mechanism  | 
| 02/22/1989 | EP0304159A2 Viscous damper module for torsional vibration damping mechanism  | 
| 02/22/1989 | EP0303968A2 Clutch with two pressure plates comprising a detent mechanism and a differential with two clutches  | 
| 02/22/1989 | EP0303612A1 Friction devices  | 
| 02/21/1989 | CA1250240A1 Clutch with a piloted and spring loaded driven disc hub  | 
| 02/16/1989 | DE3726342A1 Zweischeiben-kupplung mit zwischenplattensteuerung Two-disc clutch with intermediate plate control  | 
| 02/09/1989 | WO1989001096A1 Clutch cover assembly  | 
| 02/08/1989 | EP0302533A2 Minimum complexity vibration damper  | 
| 02/07/1989 | US4802564 Friction-disc clutch  | 
| 01/31/1989 | US4800996 Clutch unit for motor vehicle  | 
| 01/25/1989 | EP0118520B1 Self-adjusting clutch mechanism  | 
| 01/17/1989 | CA1248827A1 Clutch drive with link spring  | 
| 01/10/1989 | US4796740 Flywheel assembly  | 
| 01/10/1989 | CA1248470A1 Clutch and method of clutching  | 
| 12/29/1988 | WO1988010375A1 Friction structure for damper discs  | 
| 12/29/1988 | DE3719400A1 Device for operating a friction clutch disengageable counter to a spring force  | 
| 12/29/1988 | DE3719399A1 Device for operating a friction clutch disengageable counter to a spring force  | 
| 12/27/1988 | US4793456 Variable ratio clutch lever  | 
| 12/21/1988 | EP0295902A2 Mounting for a friction clutch pressure plate  | 
| 12/21/1988 | CN88101759A Variable ratio clutch lever  | 
| 12/20/1988 | US4792030 Hub for clutch discs of friction clutches in motor vehicles  |