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Class Information
Number: 137/71
Name: Fluid handling > Destructible or deformable element controlled > Destructible element > Having pressure responsive valve
Description: Apparatus including a pressure responsive valve controlling the fluid flow in response to the pressure thereof in addition to the control in response to the breaking of the frangible element.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8671968 Device for pressure testing of pipes Mar. 18, 2014
8622070 Valve release mechanism Jan. 7, 2014
8616230 Dual-acting multi-actuation mode gate valve Dec. 31, 2013
8573244 Non-simmer relief valve Nov. 5, 2013
8550104 Pressure control and relief system Oct. 8, 2013
8534308 Pressure control and relief system Sep. 17, 2013
8496021 Overpressure valve for an aircraft Jul. 30, 2013
8082941 Reverse action flow activated shut-off valve Dec. 27, 2011
7971804 Channeled shaft check valve assemblies Jul. 5, 2011
7874309 Compressor Jan. 25, 2011
7798165 Rupture control system Sep. 21, 2010
7798893 Full opening and reclosable explosion vent apparatus Sep. 21, 2010
7703472 Module isolation devices Apr. 27, 2010
7686235 Check valve assembly for controlling the flow of pressurized fluids Mar. 30, 2010
7635004 Non-pyrotechnic isolation valve element Dec. 22, 2009
7516751 Wet barrel fire hydrant flow preventer Apr. 14, 2009
7318556 Water line safety valve Jan. 15, 2008
7293721 Check valve assembly for sprinkler head Nov. 13, 2007
7270140 Poppet valve assembly Sep. 18, 2007
7267136 Wet barrel fire hydrant flow preventer Sep. 11, 2007
7209806 Self-contained electronic pressure monitoring and shutdown device Apr. 24, 2007
7156119 Hydrant knock-off combination flow stop and backflow check valve Jan. 2, 2007
7152617 High pressure release safety valve assembly Dec. 26, 2006
7128083 Wet barrel fire hydrant flow preventer Oct. 31, 2006
7124770 Shear mechanism for backpressure relief in a choke valve Oct. 24, 2006
7066193 Poppet shear protection apparatus and system Jun. 27, 2006
7004189 Lubrication cutoff device Feb. 28, 2006
6802332 Shear valve Oct. 12, 2004
6799597 Pressure control system which detects and abates overpressure and underpressure conditions in a pressurized fluid Oct. 5, 2004
6799596 Breakaway safety shut-off valve Oct. 5, 2004
6789561 Excess-flow valve Sep. 14, 2004
6732808 Fire-extinguishing device May. 11, 2004
6698714 Fluid safety discharge system Mar. 2, 2004
6640824 Mud saver kelly valve Nov. 4, 2003
6431196 Combination pressure relief device Aug. 13, 2002
6431197 Regulator valve for escape slide Aug. 13, 2002
6425410 High impact type gate pressure release valve Jul. 30, 2002
6412811 Inflator Jul. 2, 2002
6398317 Hydraulic vehicle brake system with wheel slip control, and valve for such a brake system Jun. 4, 2002
6357465 Shipping cap for evacuation valve Mar. 19, 2002
6321770 Regulator valve for escape slide Nov. 27, 2001
6263912 Fluid flow control valve Jul. 24, 2001
6263911 Fluid flow control valve Jul. 24, 2001
6260575 Fluid flow control valve Jul. 17, 2001
6227562 Stored gas inflator assembly May. 8, 2001
6199584 Fluid flow control valve Mar. 13, 2001
6178982 Shut-off valve for a sprinkler head Jan. 30, 2001
6173767 Pressure release device for cooling coils Jan. 16, 2001
6135134 Excess flow volume control valve Oct. 24, 2000
6112758 Gas line automatic shut-off assembly Sep. 5, 2000

1 2 3










 
 
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