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Class Information
Number: 192/87.13
Name: Clutches and power-stop control > Clutches > Operators > Fluid pressure > Multiple clutches > Having independent operators > With selective distributor for fluid pressure
Description: Device provided with a multiway valve unit effective to direct the pressurized fluid to the actuator for any, all, or none of the clutches.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7410438 |
Switching-valve arrangement for a shifting system of an automatic transmission |
Aug. 12, 2008 |
| 7273434 |
Automatic transmission brake for racing vehicles |
Sep. 25, 2007 |
| 7270224 |
Device for the optimization of hydraulically controlled engagement of clutches used in marine transmissions |
Sep. 18, 2007 |
| 7255212 |
Hydraulic control circuit for automatic transmission of vehicle |
Aug. 14, 2007 |
| 7220206 |
Hydrostatically applied clutch system with multiplex master cylinders |
May. 22, 2007 |
| 7174996 |
Hydraulic fluid feeder |
Feb. 13, 2007 |
| 7168542 |
Transmission having a post clutch actuator relief valve |
Jan. 30, 2007 |
| 7137495 |
Drivetrain |
Nov. 21, 2006 |
| 7134536 |
Hydraulic control circuit for automatic transmission of vehicle |
Nov. 14, 2006 |
| 7124867 |
Traveling transmission of working vehicle |
Oct. 24, 2006 |
| 7048104 |
Selective bypass of solenoid-controlled supply to friction elements of an automatic transmission |
May. 23, 2006 |
| 7021422 |
Clutch system |
Apr. 4, 2006 |
| 6889811 |
Hydraulically operated clutch system |
May. 10, 2005 |
| 6827191 |
Clutch system with at least one multiple-plate clutch arrangement |
Dec. 7, 2004 |
| 6729454 |
Transmission with a two-step actuator valve |
May. 4, 2004 |
| 6666312 |
Modulatable power transmission clutch and a marine transmission |
Dec. 23, 2003 |
| 6585002 |
Pressure regulator valve |
Jul. 1, 2003 |
| 6578692 |
Rear drive module for all-wheel drive vehicle |
Jun. 17, 2003 |
| 6526848 |
Vehicle transmission |
Mar. 4, 2003 |
| 6450309 |
Transmission system structure of vehicle |
Sep. 17, 2002 |
| 6319172 |
Off-going clutch control for upshifting of an automatic transmission |
Nov. 20, 2001 |
| 6269927 |
Speed change control device in working vehicles |
Aug. 7, 2001 |
| 6199441 |
Fluid supply system in vehicles |
Mar. 13, 2001 |
| 6186258 |
Dynamic all wheel drive |
Feb. 13, 2001 |
| 6129361 |
Fluid conduit seal |
Oct. 10, 2000 |
| 6076420 |
Power transmission changeover devices for four-wheel drive vehicles |
Jun. 20, 2000 |
| 6026840 |
Hydraulic control system |
Feb. 22, 2000 |
| 6000293 |
Multi-clutched transmission |
Dec. 14, 1999 |
| 5941358 |
End-of-fill detector arrangement for a fluid actuated clutch |
Aug. 24, 1999 |
| 5918509 |
Powershift reversing transmission |
Jul. 6, 1999 |
| 5890575 |
Control apparatus for hydraulically operated vehicular transmission |
Apr. 6, 1999 |
| 5871074 |
Control circuit for a powershift transmission |
Feb. 16, 1999 |
| 5779586 |
Driving device |
Jul. 14, 1998 |
| 5609068 |
Process for controlling and regulating the load take-up in an automatic gearbox |
Mar. 11, 1997 |
| 5588327 |
Multiplexed hydraulic clutch control |
Dec. 31, 1996 |
| 5577584 |
Multiple pressure-to-current relations in a system having a solenoid-operated hydraulic valve |
Nov. 26, 1996 |
| 5492210 |
Ratio interchange control valving |
Feb. 20, 1996 |
| 5419419 |
Shifting system for positive variable drive transmisison |
May. 30, 1995 |
| 5407042 |
Propelling transmission structure for a working vehicle |
Apr. 18, 1995 |
| 5377801 |
Control apparatus for a transmission and the like |
Jan. 3, 1995 |
| 5352161 |
Capacity control for nested clutch automatic transmission |
Oct. 4, 1994 |
| 5350047 |
Rotary valve for automatic transmission |
Sep. 27, 1994 |
| 5311974 |
Valve arrangement for a hydraulic transmission circuit |
May. 17, 1994 |
| 5307914 |
Method and means for controlling torque amplifier |
May. 3, 1994 |
| 5261456 |
Transmission engagement override valve |
Nov. 16, 1993 |
| 5247858 |
Hydraulic relief valve for a hydraulic clutch |
Sep. 28, 1993 |
| 5240093 |
Configuration for the pressure supply to an automatic selector device of a change-speed gearbox |
Aug. 31, 1993 |
| 5234087 |
Pressure medium actuated method and friction clutch with exclusively axially movable friction discs |
Aug. 10, 1993 |
| 5234092 |
Control valve assembly with concentric spools |
Aug. 10, 1993 |
| 5179874 |
Hydraulic control system for vehicular automatic transmissions |
Jan. 19, 1993 |
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