| |
 |
|
Class Information
Number: 91/401
Name: Motors: expansible chamber type > Working member position responsive motive fluid control > Venting expanding chamber > Through working member
Description: Apparatus in which the motive fluid is vented through a passage in the working member.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7258034 |
Rack bar of power steering gearbox |
Aug. 21, 2007 |
| 6957603 |
Modulated overpressure valve structure for fluid operated device |
Oct. 25, 2005 |
| 6161465 |
Pneumatic or hydraulic control motor with a shutoff device |
Dec. 19, 2000 |
| 6050171 |
Hydraulic power steering gear assembly with unloading value |
Apr. 18, 2000 |
| 5803201 |
Hydraulic power steering gear assembly with unloading valve |
Sep. 8, 1998 |
| 5778755 |
Control valve having a sensor switchable between an open and a closed condition |
Jul. 14, 1998 |
| 5647722 |
Dual cylinder actuated boom arm |
Jul. 15, 1997 |
| 5611256 |
Differential pressure detecting system |
Mar. 18, 1997 |
| 5562017 |
Reusable press fit connection of a hydraulic power apparatus and method of assembly |
Oct. 8, 1996 |
| 5511460 |
Stroke limiter for hydraulic actuator pistons in compression release engine brakes |
Apr. 30, 1996 |
| 5322142 |
Hydraulic auxiliary power steering |
Jun. 21, 1994 |
| 5292220 |
Dual cylinder actuated boom arm |
Mar. 8, 1994 |
| 5205372 |
Hydraulic power steering device |
Apr. 27, 1993 |
| 5139106 |
Auxiliary power steering system, especially for motor vehicles |
Aug. 18, 1992 |
| 5129311 |
Piston assembly with primary and co-centric secondary portions |
Jul. 14, 1992 |
| 5094081 |
Hydraulic brake system valved piston |
Mar. 10, 1992 |
| 5086864 |
Hydraulic auxiliary-power steering device |
Feb. 11, 1992 |
| 4870889 |
Hydraulic device for fuel pumping apparatus |
Oct. 3, 1989 |
| 4860646 |
Compactor with hydraulic dwell and method |
Aug. 29, 1989 |
| 4821624 |
Stroke limiter for hydraulic cylinder |
Apr. 18, 1989 |
| 4798125 |
Pneumatic type of hydraulic structure |
Jan. 17, 1989 |
| 4779843 |
Jack with drain valve |
Oct. 25, 1988 |
| 4773303 |
Apparatus and method for readjusting pressure relief poppet valves |
Sep. 27, 1988 |
| 4736671 |
Fluid pressure control device |
Apr. 12, 1988 |
| 4729283 |
Valve for use with hydraulic ram assemblies |
Mar. 8, 1988 |
| 4726284 |
Hydraulic cylinder |
Feb. 23, 1988 |
| 4700955 |
Chucks |
Oct. 20, 1987 |
| 4687449 |
Staged hydraulic trim-tilt system |
Aug. 18, 1987 |
| 4681021 |
Driving apparatus |
Jul. 21, 1987 |
| 4648307 |
Unloading valve for power steering piston with integral gear |
Mar. 10, 1987 |
| 4572054 |
Exact position feedback of double-acting power piston in hydraulic cylinders |
Feb. 25, 1986 |
| 4554991 |
Auxiliary hydraulic drive system for road graders and the like |
Nov. 26, 1985 |
| 4525999 |
Actuator for deploying flexible bodies |
Jul. 2, 1985 |
| 4490120 |
Hydraulic trim-tilt system |
Dec. 25, 1984 |
| 4487019 |
Hoisting gear at patient-lifting devices |
Dec. 11, 1984 |
| 4471685 |
System with sequenced activators |
Sep. 18, 1984 |
| 4448262 |
Pneumatic hammer |
May. 15, 1984 |
| 4442929 |
Hydraulic clutch |
Apr. 17, 1984 |
| 4437387 |
Integral actuator and sequencing valve |
Mar. 20, 1984 |
| 4429620 |
Hydraulically operated actuator |
Feb. 7, 1984 |
| 4409884 |
Synchronization cylinder |
Oct. 18, 1983 |
| 4391592 |
Hydraulic trim-tilt system |
Jul. 5, 1983 |
| 4367672 |
Auxiliary power steering, especially for motor vehicles |
Jan. 11, 1983 |
| 4354421 |
Energy recovery reciprocating engine |
Oct. 19, 1982 |
| 4337687 |
Poppet trip device for hydraulic cylinders |
Jul. 6, 1982 |
| 4326449 |
Double acting hydraulic jack with an end of stroke device |
Apr. 27, 1982 |
| 4308018 |
Trim-tilt device for marine propulsion devices |
Dec. 29, 1981 |
| 4305252 |
Centering and cooling equipment for a hydraulic vibration generator |
Dec. 15, 1981 |
| 4277048 |
Hydraulic actuator with automatic travel limit bypass |
Jul. 7, 1981 |
| 4261248 |
Auxiliary power steering system with relief valve control |
Apr. 14, 1981 |
|
|
|
