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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 |
| 4441558 |
Valve |
Apr. 10, 1984 |
| 4420044 |
Flow control system |
Dec. 13, 1983 |
| 4413643 |
Hose-break valve |
Nov. 8, 1983 |
| 4406299 |
Liquid level valve |
Sep. 27, 1983 |
| 4404982 |
Rupturable pressure relief apparatus |
Sep. 20, 1983 |
| 4402334 |
Rupture band relief valve |
Sep. 6, 1983 |
| 4396032 |
Safety underwater pressure regulator |
Aug. 2, 1983 |
| 4364407 |
Mud saver valve |
Dec. 21, 1982 |
| 4352366 |
Velocity operated standing valve |
Oct. 5, 1982 |
| 4347744 |
Diaphragm type differential pressure gauge with overpressure relief protection |
Sep. 7, 1982 |
| 4326555 |
Breakaway coupling |
Apr. 27, 1982 |
| 4321954 |
Gas pressurizer |
Mar. 30, 1982 |
| 4317470 |
Rupture band relief valve |
Mar. 2, 1982 |
| 4317375 |
Flowmeter with pressure release |
Mar. 2, 1982 |
| 4308220 |
Tamperproof protecting construction |
Dec. 29, 1981 |
| 4258739 |
Hermetically sealed high pressure gas container |
Mar. 31, 1981 |
| 4258793 |
Oil well testing string bypass valve |
Mar. 31, 1981 |
| 4234523 |
Adjustment prevention mechanism for carburetor |
Nov. 18, 1980 |
| 4201363 |
Tubing retrievable surface controlled subsurface safety valve |
May. 6, 1980 |
| 4185584 |
Signal device |
Jan. 29, 1980 |
| 4126212 |
Crash load attenuating valve for an aircraft landing gear shock strut |
Nov. 21, 1978 |
| 4121483 |
Aircraft flight control system |
Oct. 24, 1978 |
| 4099563 |
Steam injection system for use in a well |
Jul. 11, 1978 |
| 4082104 |
Pressure relief valve |
Apr. 4, 1978 |
| 4072162 |
Valve structure for a spraying container |
Feb. 7, 1978 |
| 4054163 |
Tire inflator |
Oct. 18, 1977 |
| 4031960 |
Circulating valve |
Jun. 28, 1977 |
| 4021058 |
Safety bag device for vehicle |
May. 3, 1977 |
| 3995694 |
Inflatable well seal and method of use thereof |
Dec. 7, 1976 |
| 3967679 |
Mud saver valve |
Jul. 6, 1976 |
| 3966228 |
Sequenced orifice fluid supply for occupant restraint system |
Jun. 29, 1976 |
| 3930517 |
Safety valve |
Jan. 6, 1976 |
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