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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:
| Patent Number |
Title Of Patent |
Date Issued |
| 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 |
| 6799596 |
Breakaway safety shut-off valve |
Oct. 5, 2004 |
| 6799597 |
Pressure control system which detects and abates overpressure and underpressure conditions in a pressurized fluid |
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 |
| 6431197 |
Regulator valve for escape slide |
Aug. 13, 2002 |
| 6431196 |
Combination pressure relief device |
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 |
| 6102060 |
Detachable locking device for a control valve and method |
Aug. 15, 2000 |
| 6062247 |
One-piece shut-off valve |
May. 16, 2000 |
| 6053194 |
Duckbilled check valves and methods of making and using same |
Apr. 25, 2000 |
| 6000632 |
Pop-up sprinkler head with maintenance features |
Dec. 14, 1999 |
| 5957197 |
Downhole cut-off valve used for cementing |
Sep. 28, 1999 |
| 5941268 |
Tank safety valve |
Aug. 24, 1999 |
| 5941309 |
Actuating ball |
Aug. 24, 1999 |
| 5820162 |
Airbag system inflator |
Oct. 13, 1998 |
| 5810057 |
Pressure vessel fill protective device |
Sep. 22, 1998 |
| 5799684 |
Frangible hydraulic fuse |
Sep. 1, 1998 |
| 5782259 |
Pressure relief valve |
Jul. 21, 1998 |
| 5758682 |
Safety shut off valve |
Jun. 2, 1998 |
| 5706848 |
Heat exchanger pressure shutoff valve |
Jan. 13, 1998 |
| 5685329 |
Dual inline rupture pin release and reseating spring loaded relief valve |
Nov. 11, 1997 |
| 5618057 |
Continuously variable controlled orifice inflator |
Apr. 8, 1997 |
| 5609359 |
Pintle controlled orifice inflator |
Mar. 11, 1997 |
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