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Class Information
Number: 92/98D
Name: Expansible chamber devices > Collapsible chamber wall portion (e.g., hinged or flexible wall) > Wall portion formed of flexible material > Diaphragm type > Entire periphery secured to rigid working chamber forming wall > Rolling diaphragm
Description:


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
7335003 Precision dispense pump Feb. 26, 2008
7293967 Pump apparatus Nov. 13, 2007
7255036 Pneumatic servomotor comprising a diaphragm and/or a joint which is overmoulded onto the skirt Aug. 14, 2007
7077052 Strut assembly with inverted air spring configuration Jul. 18, 2006
6928918 Pneumatic brake booster comprising improved sealing means Aug. 16, 2005
6907817 Linear actuator Jun. 21, 2005
6695279 Pressure-responsive actuator Feb. 24, 2004
6267302 Spray gun with rolling wall diaphragm and quick disconnect housing Jul. 31, 2001
6079959 Reciprocating pump Jun. 27, 2000
6068198 Aerosol generating and dispensing system May. 30, 2000
5941610 Tandem vacuum servo unit for a vehicle braking system Aug. 24, 1999
5918853 Vacuum valve control device and vacuum valve Jul. 6, 1999
5913665 Fill pump with rolling diaphragms attached by vacuum to the piston Jun. 22, 1999
5897304 Flow-through vertical filling pump with a plurality of diaphragms Apr. 27, 1999
5794509 Proportional pneumatic fin actuator system without feedback control Aug. 18, 1998
5771774 Spring brake actuator having plastic pressure plate assembly Jun. 30, 1998
5727447 Supercharge pressure control apparatus Mar. 17, 1998
5725365 Rolling diaphragm seal arrangement for a submersible pump system Mar. 10, 1998
5716110 Brake booster system including a power piston slidably supported by a resilient convolution chamber at its peripheral edge Feb. 10, 1998
5673607 Rolling head diaphragm Oct. 7, 1997
5623862 Long stroke spring brake actuator Apr. 29, 1997
5560276 Movable wall for a pneumatic booster Oct. 1, 1996
5538478 Preventive structure for preventing extraordinary deformation of a diaphragm of an oil hermetic type tensioner Jul. 23, 1996
5538478 Preventive structure for preventing extraordinary deformation of a diaphragm of an oil hermetic type tensioner Jul. 23, 1996
5524526 Vacuum motor for an automotive vehicle Jun. 11, 1996
5477682 Hydraulic master cylinder and reservoir assembly Dec. 26, 1995
5363743 Fluid pressure servomotor Nov. 15, 1994
5355770 Brake booster Oct. 18, 1994
5332370 Miniature diaphragm pump Jul. 26, 1994
5316273 Counterbalance actuator having an extended stroke May. 31, 1994
5293811 Missile control fin actuator system Mar. 15, 1994
5275014 Heat pump system Jan. 4, 1994
5257682 Hub clutch assembly Nov. 2, 1993
5255711 Spring-loaded pressure regulating valve including rolling diaphragm and compensation for variation of spring force with diaphragm displacement Oct. 26, 1993
5207142 Diaphragm for a vacuum brake booster May. 4, 1993
5205133 High efficiency pool heating system Apr. 27, 1993
5184468 Brake power booster and master cylinder assembly with return spring plate Feb. 9, 1993
5163355 Negative pressure booster equipment Nov. 17, 1992
5155997 Force-amplifying actuator with capsule-type transmission Oct. 20, 1992
5138936 Unlimited amplitude rolling piston Aug. 18, 1992
5133187 Fluid circuit for maintaining constant pressure between two abutting solid objects Jul. 28, 1992
5090299 Piston unit with rolling membrane Feb. 25, 1992
5090298 Brake booster with sealed passage for mounting Feb. 25, 1992
5067392 Pneumatic booster Nov. 26, 1991
5062348 Seal unit for brake booster Nov. 5, 1991
5048648 Piston cap Sep. 17, 1991
5029813 Diaphragm stem seal attachment Jul. 9, 1991
5027693 Combination diaphragm and valve body Jul. 2, 1991
5025709 Tandem type vacuum booster Jun. 25, 1991
5007329 Working piston, in particular for a brake booster Apr. 16, 1991

1 2 3 4


 
 
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