| Patents for F16D 23 - Details of mechanically-actuated clutches not specific for one distinct type; Synchronisation arrangements for clutches (6,775) |
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| 12/06/1994 | US5370725 Made from iron-based sintered alloy with free copper precipitated in matrix; mechanical strength; stabilized friction characteristic |
| 11/29/1994 | US5368397 Guide bushing with an integrated seal for the clutch-release bearing of a gear unit |
| 11/15/1994 | US5363714 Gear product |
| 11/08/1994 | CA2050270C Method and apparatus for controlling a clutch for vehicles |
| 10/27/1994 | WO1994024449A1 Synchronized clutch |
| 10/11/1994 | US5353902 Electric actuator assembly for clutch |
| 10/06/1994 | DE4231507A1 Level-equalising cam for stroke or wear compensation (toggle cam) |
| 09/29/1994 | WO1994021935A1 Engaging device in a vehicle gear box |
| 09/21/1994 | EP0616141A1 Cover with volumetric compensating device for hydraulic pressure actuating cylinders |
| 09/21/1994 | CN2177835Y Iron-base phenol resin conic ring for synchronizer |
| 09/14/1994 | EP0614733A1 A synchronizing device, particularly for systems for the manufacture and packaging of food products |
| 09/14/1994 | EP0490939B1 Synchroniser mechanism for automative manual transmission |
| 09/13/1994 | US5346442 Range shift arrangement for four-wheel drive vehicles |
| 09/06/1994 | US5343993 Synchronizing device for transmission assemblies and having friction-coupled assemblies |
| 08/23/1994 | US5339936 Synchronizer pre-energizer spring system |
| 08/18/1994 | WO1994018469A1 Control cables |
| 08/16/1994 | US5337872 Synchronizer ring |
| 08/09/1994 | US5335764 Positively engaging clutch |
| 08/09/1994 | US5335762 Clutch with a synchronizing device |
| 08/02/1994 | US5333712 Synchronized clutch |
| 07/20/1994 | EP0457826B1 Pedal-operated clutch device |
| 07/13/1994 | EP0561915B1 Clutch with a synchronising device |
| 06/30/1994 | DE4243849A1 Automatic clutch reset for motor vehicle clutch |
| 06/09/1994 | DE4340338A1 Spur gear automatic transmission for vehicle - uses synchronisation device working with twin gear spur gear pairs |
| 06/07/1994 | US5318162 Release apparatus for pull-type friction clutches |
| 06/01/1994 | EP0599328A2 Clutch release bearing device |
| 06/01/1994 | DE4239703A1 Hydraulic vehicle clutch control mechanism - has supply between master and slave with valve between slave chamber and equalisation vessel |
| 05/25/1994 | EP0598082A1 A clutch actuation system and a cable therefor. |
| 05/19/1994 | DE4338261A1 Bearing for friction clutch disengagement systems - has bending elastic sealing lip protruding from support body to sealing face of other bearing ring to form contact seal. |
| 05/17/1994 | US5311787 For a two-wheel drive motor vehicle |
| 05/10/1994 | US5309782 Multiple ratio manual transmission |
| 04/24/1994 | CA2103841A1 Dual clutch countershaft automatic transmission |
| 04/14/1994 | WO1994008152A1 Cover with volumetric compensating device for hydraulic pressure actuating cylinders |
| 04/14/1994 | CA2123117A1 Cover with volumetric compensating device for hydraulic pressure actuating cylinders |
| 04/13/1994 | EP0480976B1 Downshift securing device |
| 04/06/1994 | EP0590240A2 Power assist system for vehicle |
| 04/05/1994 | US5299677 Guide-tube with integral sealing for motor vehicle gearbox clutch release bearing |
| 04/05/1994 | US5299669 Vibration eliminator |
| 03/31/1994 | DE4331852A1 Clutch arrangement for vehicle engine - uses pressure rod to control movement of pair of membrane springs. |
| 03/26/1994 | CA2101987A1 Multiple ratio manual transmission |
| 03/26/1994 | CA2101986A1 Ratio selector mechanism for a multiple ratio manual transmission |
| 03/22/1994 | US5295566 Clutch release bearing assembly, especially for a motor vehicle |
| 03/10/1994 | DE4328463A1 Friction clutch between engine and gearbox - has spring between sliding withdrawal sleeve and supporting tube and acting on withdrawal bearing also device locking sleeve during assembly |
| 03/08/1994 | US5292290 Transmission arrangement for vehicles |
| 03/08/1994 | US5291799 Unitary ratio selector mechanism for a multiple ratio manual transmission |
| 03/03/1994 | DE4327435A1 Continuously adjustable gearing system for vehicle - uses stepped planetary wheels of different diameters |
| 03/01/1994 | US5289730 For a two-wheel drive motor vehicle |
| 02/24/1994 | DE4326937A1 Bowden cable operated clutch with noise isolation between engine and passenger compartment of car - provided at coupling having elastomer buffer plug and flexible sealing unit enclosing apertures in panel |
| 02/11/1994 | CA2097981A1 One-way synchronizer |
| 02/08/1994 | US5284233 Clutch release bearing for a clutch of the pull-off type, especially for motor vehicles |
| 02/02/1994 | EP0580574A1 Clutch for a gearbox. |
| 02/01/1994 | CA1326605C Forged gear for a transmission |
| 01/27/1994 | DE4321115A1 Snap-fit connection for disengagement elements of pull-type friction clutch - has specially dimensioned recessed area ensuring expansion of load transferring ring to prevent automatic opening. |
| 01/27/1994 | DE4224271A1 Synchromesh device for vehicle gearbox - has extensions on meshing tooth tips of coupling and switching sleeve |
| 01/27/1994 | DE4224270A1 Synchroniser device for stepped gearing of motor vehicles - has catch ring with locking faces on both axial sides to bridge interspace between teeth of synchroniser sleeve and teeth of clutch body. |
| 01/27/1994 | DE4224268A1 Synchroniser for stepped ratio gearbox in vehicle - has spring-tensioned element producing slightly delayed rotationally rigid connection between synchroniser sleeve and clutch body for smooth transition. |
| 01/26/1994 | EP0579869A2 Guide-tube with integrated sealing means for a clutch release bearing in a transmission |
| 01/20/1994 | WO1994001692A1 Clutch unit |
| 01/06/1994 | WO1994000609A1 Friction material for lubricated tribological systems |
| 12/29/1993 | CN2151304Y Rotary rod of clutch |
| 12/28/1993 | US5273146 Bearing unit for clutch release |
| 12/23/1993 | WO1993025824A1 A clutch actuation system and a cable therefor |
| 12/14/1993 | US5269400 Transmission synchronizer |
| 12/07/1993 | US5267636 Synchronizer sliding clutch sleeve |
| 11/30/1993 | US5265710 Hydraulic self-adjusting device for clutch control cables |
| 11/24/1993 | EP0570394A1 Stabilising and supporting device for the pivot of a clutch lever. |
| 11/18/1993 | EP0569789A1 A synchronizer for motor-vehicle gearboxes with permanently meshed gears |
| 11/16/1993 | CA1324330C Triple cone synchronizer with servo action |
| 10/28/1993 | DE4312316A1 Friction device for gear wheel fixed to shaft - has centrifugal spring action with spring elements for radially inwards action |
| 10/19/1993 | CA1323217C Two speed gear train assembly |
| 10/13/1993 | EP0565063A2 Clutch release device for a friction clutch of an automobile vehicle |
| 10/12/1993 | CA2001679C Multi-stage gear shift transmission |
| 10/07/1993 | DE4309520A1 Withdrawal-bearing coupling to clutch diaphragm spring - has removable distorting insert securing coupling circlip in collared member |
| 10/07/1993 | DE4303489A1 Thrust release bearing for friction clutch - has additional spring element to secure thrust release bearing parts without rattling |
| 10/07/1993 | DE4211478A1 Friction clutch with tensioned snap connection - has membrane spring fitted to disengagement ring which with fitted snap connection holds individual parts of snap connection under permanent axial force activation |
| 10/07/1993 | DE4211477A1 Friction coupling with tensioned snap connection - has sprung component in space between disengagement bearing and disengagement ring holding snap connection components under permanent axial force activation |
| 10/06/1993 | EP0563949A1 Process particularly for the powder metallurgical manufacture of a gear wheel with a coupling device |
| 10/05/1993 | US5249661 Synchronizer ring |
| 09/29/1993 | EP0561915A1 Clutch with a synchronising device. |
| 09/28/1993 | US5248523 Method for coating an inclined surface with powder |
| 08/31/1993 | US5240097 Pull-type clutch |
| 08/19/1993 | DE4302780A1 Coupling member for a disengagement system for pull-type friction clutches - has holder element(s) on outside of sleeve-like region, supported by the coupling member |
| 08/05/1993 | DE4239685A1 Gear change clutch for lightweight ship's drive - has positive locking torque transmission between primary and secondary parts of clutch |
| 08/04/1993 | EP0554133A1 Mechanical assistance device with spring |
| 07/29/1993 | DE4200998A1 Branching transmission with plate clutch for motor vehicle - has auxiliary drive to front wheels with friction and dog clutches sequentially engaged from main drive |
| 07/27/1993 | US5230255 Gearbox switchable under load including a coupling spreading assembly |
| 07/22/1993 | DE4201234A1 Switchable tooth coupling for power transmission - has switch member temporarily connected by detent to form axially displaceable group with entrainment cylinder |
| 07/21/1993 | EP0552021A1 Gear product |
| 06/24/1993 | DE4217948C1 Opening up surface pores on friction surfaces - by blasting surface with liq. or gas stream to remove bridging edges |
| 06/22/1993 | US5221401 Positioning and bonding openly porous friction material to support; carbon fibers coated with carbon; resilience; spacing of segments |
| 06/22/1993 | CA1319252C Method for manufacturing a friction ring having a conical or cylindrical friction surface |
| 06/22/1993 | CA1319251C Method for manufacturing a friction ring having a conical or cylindrical friction surface |
| 06/15/1993 | US5219056 Clutch lock-out assembly |
| 06/09/1993 | DE4140122A1 Electrically-operated friction coupling between two gears - uses servomotor with roller-type torque converter driving housing through pinion and coupling collar moved by recirculating ball. |
| 06/01/1993 | US5215176 Device for operating a clutch, especially an automotive clutch |
| 05/26/1993 | EP0543727A1 Guide member with integrated seal, for clutch release bearing in a motor vehicle gearbox |
| 05/26/1993 | EP0543721A1 Clutch release bearing with a metallic push-plate and method of making the same |
| 05/18/1993 | US5211068 One-way synchronizer |
| 05/11/1993 | US5209333 Tooth pitch deviation shift mechanism for a gearbox |
| 05/06/1993 | DE4235654A1 Clutch operation in road vehicle - has foot pedal with lever having locating groove for cable operating actuator |