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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:
| Patent Number |
Title Of Patent |
Date Issued |
| 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 |
| 6651687 |
Pressure relief system with clutch activated valve |
Nov. 25, 2003 |
| 6651686 |
Valve actuator system |
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 |
| 4977918 |
Pressure/vacuum relief valve |
Dec. 18, 1990 |
| 4949748 |
Backflash interrupter |
Aug. 21, 1990 |
| 4930536 |
Pipeline road crossing sealing system |
Jun. 5, 1990 |
| 4930578 |
Automatic sprinkler |
Jun. 5, 1990 |
| 4899960 |
Decompression panel for aircraft partition |
Feb. 13, 1990 |
| 4896689 |
Cylinder pressure relief valve |
Jan. 30, 1990 |
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