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Class Information
Number: 137/69
Name: Fluid handling > Destructible or deformable element controlled > Destructible element > With counterbalancing element
Description: Apparatus which includes means for applying a force or bias to the frangible means in a direction opposing the force (usually fluid pressure) which tends to break the frangible element.

Patents under this class:

Patent Number Title Of Patent Date Issued
8141572 High pressure isolation valve system Mar. 27, 2012
8118049 Safety system for fluid conduit Feb. 21, 2012
8069950 Environmental compressor protection assembly Dec. 6, 2011
7950409 Rupture disc assembly that withstands much higher back pressures than actuation pressure May. 31, 2011
6742538 Method and apparatus for orbital and seal welded relief device on a compressed gas cylinder Jun. 1, 2004
6726241 Cold gas generator Apr. 27, 2004
6612326 Inflator Sep. 2, 2003
6604541 Pilot operated rupture disk Aug. 12, 2003
6497183 Inflatable air bag release and membrane protection device Dec. 24, 2002
6431383 Enhanced reverse buckling rupture disc Aug. 13, 2002
6321770 Regulator valve for escape slide Nov. 27, 2001
6311715 Stacked rupture disk assembly Nov. 6, 2001
6247725 Opening apparatus for the gas pressure container of an airbag Jun. 19, 2001
6176249 Inflator Jan. 23, 2001
5947143 Fast acting deployment device for high pressure vessels Sep. 7, 1999
5860443 Rapid release mechanism with damping control Jan. 19, 1999
5664803 Gas generator, particularly for an air bag Sep. 9, 1997
5433239 Downstream fluid pressure responsive emergency shutdown valve Jul. 18, 1995
5048554 Valve for a gas cylinder Sep. 17, 1991
4828183 Butterfly valve for fluid flow line May. 9, 1989
4619285 Fluid flow control device Oct. 28, 1986
4561630 Valve Dec. 31, 1985
4520838 Valve for high pressure fluid container Jun. 4, 1985
4434905 Rupturable low pressure relief apparatus Mar. 6, 1984
4361165 Breakaway pipe coupling with automatically closed valves Nov. 30, 1982
4345611 Safety valve means for battery Aug. 24, 1982
4289327 Air bag device for cars Sep. 15, 1981
4111222 Adjustment limiter in a compressed gas pressure regulator Sep. 5, 1978
4020860 Device for dissipating the accidental over-pressure of a fluid May. 3, 1977

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