Patents for F16D 25 - Fluid-actuated clutches (9,207)
06/1989
06/06/1989US4836351 Motor vehicle clutch
06/06/1989US4836052 Compact change speed transmission
06/01/1989WO1989004926A1 Pull type clutch
05/1989
05/31/1989CN1004371B Centrifugal type governing speed and steady speed controlled oil film clutch
05/30/1989US4834229 Fluid operated multiple-disk friction clutch
05/30/1989US4834228 Clutch assembly for a tractor
05/24/1989EP0316869A2 Automated mechanical transmission system for use in commercial vehicles
05/24/1989DE3738741A1 Geberzylinder Master Cylinder
05/24/1989DE3738305A1 Device for the radial feed of hydraulic fluid and/or cooling fluid to hydraulically actuated switching elements
05/23/1989US4831916 Piston assembly
05/17/1989EP0229074B1 Fan drive mechanism
05/16/1989US4830161 Fan clutch
05/09/1989US4828463 Rotary compressor with clutch and bypass control actuated by hydraulic fluid
05/09/1989US4828198 Roll support spindle
05/09/1989US4828089 Closed loop fluid flow, grooves in surface
05/09/1989US4827834 Four point seal
05/09/1989US4827784 Vehicle driving mechanism having a synchromesh gearbox with an additional clutch in each of two power branches
05/03/1989EP0314636A2 A power-shift gearbox unit for tractors
05/02/1989CA1253538A1 Hydraulic master cylinder switch
04/1989
04/26/1989EP0233881B1 Lamellar clutch with dog-type clutch
04/18/1989US4821627 Piston and cylinder assembly
04/18/1989US4821518 Clutch booster with overcenter means
04/12/1989EP0311285A1 Dual clutch application area and control
04/12/1989EP0310733A1 Hydropneumatic actuator for automotive vehicles
04/06/1989WO1989002992A1 Fan clutch
04/05/1989EP0310570A2 Torque transmitting device
04/05/1989EP0310328A2 Starting clutch for a continuously variable transmission
04/05/1989EP0310020A1 Clutch
04/04/1989US4817752 Automatic free wheeling hub assembly
03/1989
03/30/1989DE3830829A1 Hydraulically actuated gear-change device
03/23/1989WO1989002547A1 Quick release, high torque, friction brakes and clutches
03/23/1989WO1989002546A1 Hydraulic gearshift
03/21/1989US4813236 Master cylinder
03/15/1989EP0307389A1 Clutch mechanism for a power change-speed gearing
02/1989
02/28/1989US4807732 Multiple-disc clutch for tractor PTO shaft
02/22/1989EP0303968A2 Clutch with two pressure plates comprising a detent mechanism and a differential with two clutches
02/22/1989EP0303612A1 Friction devices
02/21/1989US4805752 Variable capacity torque transmitter
02/21/1989CA1250240A1 Clutch with a piloted and spring loaded driven disc hub
02/09/1989DE3725492A1 Multiplate clutch for power wheel - has plates pressed together by piston operated hydraulically by hollow slide with internal inlet and outlet chambers
02/07/1989US4802564 Friction-disc clutch
02/02/1989EP0262152A4 Roll support spindle.
01/1989
01/25/1989EP0300975A1 Hydraulic pressure transducer, particularly for transmission devices for motor vehicles and like applications
01/17/1989US4798647 Releasable mounting assembly for tire building drum
01/17/1989US4798272 Hydraulically operated friction clutch having automatic wear compensating valve
01/17/1989CA1248827A1 Clutch drive with link spring
01/10/1989CA1248470A1 Clutch and method of clutching
01/05/1989DE3820874A1 Clutch device
01/03/1989US4795016 Fluid actuator
01/03/1989US4795013 Coupling assembly and friction shoe therefor
01/03/1989CA1247980A1 Hydraulic servo for friction coupling devices of automatic transmissions
12/1988
12/29/1988WO1988010378A1 A device to oppose relative rotational movement between two rotatable shafts
12/29/1988WO1988010376A1 Clutch
12/29/1988DE3720208A1 Gearing with overload clutch, in particular for powerful chain drives of mining machines
12/29/1988DE3719400A1 Device for operating a friction clutch disengageable counter to a spring force
12/29/1988DE3719399A1 Device for operating a friction clutch disengageable counter to a spring force
12/27/1988US4793139 Joint for two piece plastic master cylinder housing
12/21/1988EP0295395A1 Mastercylinder-arrangement
12/20/1988US4792029 Clutch arrangement
12/15/1988WO1988009889A1 Piston seal
12/15/1988WO1988009734A1 A hydraulic actuator for connection to a reservoir
12/13/1988CA1246472A1 Fan clutch
12/08/1988DE3815638A1 Gear shift device
12/07/1988EP0293377A1 Forced cooling device for friction brakes or clutches.
11/1988
11/30/1988EP0293321A2 Apparatus for controlling a fluid-pressure differential cylinder actuator
11/30/1988EP0293082A2 Actuator
11/23/1988EP0292456A1 A motor vehicle clutch
11/17/1988WO1988008801A1 A piston assembly
11/17/1988WO1988008800A1 Master cylinder
11/15/1988US4784249 Clutch servos
11/03/1988DE3713568A1 Elastische schaltkupplungskombination Elastic-type clutch combination
11/01/1988CA1243967A1 Two-speed clutch
10/1988
10/25/1988US4779713 Hydraulic clutch activation system
10/20/1988DE3711385A1 Apparatus for the radial feeding of a lubricant-containing fluid to a rotatable sleeve or the like
10/18/1988US4778039 Friction clutch having premounted release bearing and premounted release mechanism
10/11/1988US4776444 Arrangement for the shifting of a multi-disk clutch for the locking of a transfer differential for the drive of two vehicle axles of a motor vehicle
10/06/1988WO1988007635A1 Fluid clutch
10/05/1988EP0285255A1 Master Cylinder
10/04/1988US4775041 Compact friction clutch with actuated disengagement, suitable for vehicle compressors
09/1988
09/27/1988US4773519 Fluid actuator for brakes and clutches and method of manufacturing
09/27/1988US4773516 Novel clutch lever support means
09/27/1988CA1242400A1 Clutch master cylinder with internal reservoir
09/22/1988WO1988007146A1 Overload apparatus
09/22/1988WO1988007144A1 Pressurized friction disc clutch or brake
09/21/1988EP0283424A1 Overload apparatus
09/21/1988EP0282741A1 Variable speed drive for engine cooling fans
09/14/1988EP0282169A1 Clutch assembly with a pressure-balance chamber
09/14/1988EP0281869A1 Pneumatic device for the automatic coupling operation of motor vehicles
09/13/1988US4770281 Overload apparatus
09/01/1988DE3705052A1 Hydraulic clutch
08/1988
08/30/1988US4766804 For use as the slave cylinder
08/23/1988US4765450 Clutch control apparatus responsive to motor and gearing controls
08/18/1988DE3801348A1 Friction clutch with operating device
08/16/1988US4763765 Cone clutch transmission
08/16/1988CA1240627A1 Bearing fail-safe device
08/09/1988CA1240351A1 Pressure activated seal ring
08/04/1988DE3701912A1 Device for the transmission of torque from a reciprocating piston engine to a gearbox
08/03/1988EP0276255A1 Gear shift coupling, specially for automatic gears of motor vehicles.
07/1988
07/26/1988US4759432 Pressure medium-adjusting member for the actuation of a lamelae-clutch with a lubricating valve
07/20/1988CN86108603A Dynamic slewing locked water tap
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