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Class Information
Number: 137/70
Name: Fluid handling > Destructible or deformable element controlled > Destructible element > Frangible element returns pressure responsive valve
Description: Apparatus in which a valve which opens in response to increased pressure is retained in closed position by means of a frangible element, opening of the valve resulting from the breaking of the frangible element.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8573244 Non-simmer relief valve Nov. 5, 2013
8474480 Actuator control valve Jul. 2, 2013
8297313 Pressure abatement emergency shut down assembly with a collapsible member retained valve member Oct. 30, 2012
8251089 Relief system for process fluids under pressure Aug. 28, 2012
7950408 Pressure relief vent devices May. 31, 2011
7635004 Non-pyrotechnic isolation valve element Dec. 22, 2009
7438087 Overpressure rotary valve assembly with locking pin and collapsible member Oct. 21, 2008
7370671 Valve activation assembly which mechanically collapses a collapsible member in response to both overpressure and underpressure conditions May. 13, 2008
6880568 Pressure relief system with multi-port valve Apr. 19, 2005
6843265 Pressure relief system with supply activated valve Jan. 18, 2005
6796321 Pressure relief valve Sep. 28, 2004
6666230 Pressure relief system with trigger activated valve Dec. 23, 2003
6659119 Fluid pressure responsive dual piston or emergency shutdown valve actuator Dec. 9, 2003
6651686 Valve actuator system Nov. 25, 2003
6651687 Pressure relief system with clutch activated valve Nov. 25, 2003
6637448 Contamination-free pyrovalve Oct. 28, 2003
6491055 Pressure relief apparatus Dec. 10, 2002
6488044 Pressure relief apparatus Dec. 3, 2002
6484742 Cartridge assembly for valve Nov. 26, 2002
6425410 High impact type gate pressure release valve Jul. 30, 2002
6412512 Pressure control valve Jul. 2, 2002
6367498 Pressure relief apparatus Apr. 9, 2002
6367203 Rupture panel Apr. 9, 2002
6341616 Fire protection fluid relief valve Jan. 29, 2002
6325088 Buckling pin actuated, pilot operated pressure relief valve Dec. 4, 2001
6276389 Toxic fluid safe relief valve Aug. 21, 2001
6227226 Fire activated, fail safe, gate valve bonnet May. 8, 2001
6186159 Rupture disk controlled hydraulically actuated valve assembly Feb. 13, 2001
6155284 Buckling pin latch actuated safety relief valve Dec. 5, 2000
6131599 Rupture disk controlled mechanically actuated pressure relief valve assembly Oct. 17, 2000
6058961 High pressure relief valve May. 9, 2000
6053194 Duckbilled check valves and methods of making and using same Apr. 25, 2000
5984269 Rotatable valve assembly Nov. 16, 1999
5836337 Large diameter low pressure relief valve Nov. 17, 1998
5727586 Reclosing collapsible pin pressure relief valve Mar. 17, 1998
5577523 Method of making relief valve interchangeable buckling pins for a selectable pressure setting Nov. 26, 1996
5577524 Large diameter resettable rupture pin relief valve Nov. 26, 1996
5575306 Relief valve trigger for relatively large diameter fluid pressure containers Nov. 19, 1996
5348039 Large diameter and relatively high pressure relief valve Sep. 20, 1994
5318126 Explosively opened production valve including a frangible breakup element operated by tubing pressure or rathole pressure or both Jun. 7, 1994
5297575 In-line high pressure fluid release valve Mar. 29, 1994
5273065 Large diameter and relatively high pressure relief valve Dec. 28, 1993
5226442 Vacuum/pressure release valve Jul. 13, 1993
5216959 Method and device for press overload protection Jun. 8, 1993
5113893 Safety pressure relief valve shut-off May. 19, 1992
5099869 Discharge arrangement for a pressure relief valve in a pressurized hot fluid circuit of an aircraft Mar. 31, 1992
5071288 Subsea inflation and grout system Dec. 10, 1991
5012834 Fluid pressure flare relief valve May. 7, 1991
5000216 Pressure relief valve Mar. 19, 1991
4979569 Dual action valve including at least two pressure responsive members Dec. 25, 1990

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