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Class Information
Number: 92/48
Name: Expansible chamber devices > Plural flexible wall working members
Description: Apparatus comprising two or more working members, each of said working members having a portion of the wall thereof formed of material which is pliable, and in which the flexing of said pliable material constitutes the movement of said working member.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7527483 |
Expansible chamber pneumatic system |
May. 5, 2009 |
| 7399168 |
Air driven diaphragm pump |
Jul. 15, 2008 |
| 7288323 |
Vulcanized rubber composition and articles manufactured therefrom |
Oct. 30, 2007 |
| 7198474 |
Pump having shape memory actuator and fuel cell system including the same |
Apr. 3, 2007 |
| 7055782 |
Cellular actuator device and methods of making and using same |
Jun. 6, 2006 |
| 6895853 |
Tandem brake booster |
May. 24, 2005 |
| 6796215 |
Membrane pump |
Sep. 28, 2004 |
| 6718766 |
Pump-integrated flexible actuator |
Apr. 13, 2004 |
| 6626080 |
Triple power booster for brake systems |
Sep. 30, 2003 |
| 6604451 |
Fluid actuator |
Aug. 12, 2003 |
| 6554374 |
Tandem brake booster for automobiles |
Apr. 29, 2003 |
| 6170385 |
Brake booster |
Jan. 9, 2001 |
| RE36955 |
Fluid-operated brake actuator with internal valve |
Nov. 21, 2000 |
| 5941610 |
Tandem vacuum servo unit for a vehicle braking system |
Aug. 24, 1999 |
| 5937733 |
Spring brake actuator with internal breathing conduit |
Aug. 17, 1999 |
| 5927177 |
Multi-diaphragm actuator |
Jul. 27, 1999 |
| 5878651 |
Tandem vacuum brake booster |
Mar. 9, 1999 |
| 5878650 |
Power booster sealing mechanism |
Mar. 9, 1999 |
| 5743167 |
Pneumatic booster |
Apr. 28, 1998 |
| 5704455 |
Automatic brake booster |
Jan. 6, 1998 |
| 5697285 |
Actuators for simulating muscle activity in robotics |
Dec. 16, 1997 |
| 5680807 |
Vacuum brake booster for motor vehicles |
Oct. 28, 1997 |
| 5664479 |
Tandem vacuum booster |
Sep. 9, 1997 |
| 5623862 |
Long stroke spring brake actuator |
Apr. 29, 1997 |
| 5570622 |
Power booster with guided power piston |
Nov. 5, 1996 |
| 5568761 |
Pneumatic Jack |
Oct. 29, 1996 |
| 5560280 |
Repairable tamper-proof brake |
Oct. 1, 1996 |
| 5507216 |
Tandem type vacuum booster |
Apr. 16, 1996 |
| 5476032 |
Brake-booster of the partial vaccum type |
Dec. 19, 1995 |
| 5474485 |
Animation method and device |
Dec. 12, 1995 |
| 5469756 |
Flexible robot arm |
Nov. 28, 1995 |
| 5460076 |
Fluid-operated brake actuator with internal check valve |
Oct. 24, 1995 |
| 5450781 |
Booster |
Sep. 19, 1995 |
| 5410945 |
Pressure control device |
May. 2, 1995 |
| 5372059 |
Fluid operated brake actuator with internal valve |
Dec. 13, 1994 |
| 5357846 |
Tandem brake booster |
Oct. 25, 1994 |
| 5355771 |
Valve mechanism for brake booster |
Oct. 18, 1994 |
| 5353688 |
Tamper-resistant brake actuator |
Oct. 11, 1994 |
| 5345858 |
Spring brake actuator with a pressure plate bearing for a caging tool |
Sep. 13, 1994 |
| 5339722 |
Apply and relief valve mechanism for a fluid power apparatus |
Aug. 23, 1994 |
| 5333534 |
Booster |
Aug. 2, 1994 |
| 5323689 |
Method of manufacturing a tandem brake booster |
Jun. 28, 1994 |
| 5311809 |
Method of making tamper-resistant brake actuators |
May. 17, 1994 |
| 5287700 |
Flexible bellows actuation system |
Feb. 22, 1994 |
| 5277100 |
Tandem type vacuum booster |
Jan. 11, 1994 |
| 5263403 |
Method of forming a tamper-resistant brake actuator |
Nov. 23, 1993 |
| 5263399 |
Fluid booster with dual member input valve |
Nov. 23, 1993 |
| 5247868 |
Brake booster of tandem type |
Sep. 28, 1993 |
| 5245885 |
Bladder operated robotic joint |
Sep. 21, 1993 |
| 5228377 |
Brake booster |
Jul. 20, 1993 |
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