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Class Information
Number: 137/75
Name: Fluid handling > Destructible or deformable element controlled > Heat destructible or fusible > Safety cut-off
Description: Apparatus in which the valve controlling the fluid flow is biased toward a closed position but is held open by a restraining means, the fusion or destruction of the heat destructible or fusible means causing a release of the restraining means.

Sub-classes under this class:

Class Number Class Name Patents
137/77 With external closing means 49
137/76 With heater for destructible or fusible element 18

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8602048 Apparatus and instruments for handling gas and incorporating a safety valve unit Dec. 10, 2013
8490639 Temperature sensitive valve Jul. 23, 2013
8282134 Method and apparatus for assembling pressure reducing fuel regulator Oct. 9, 2012
7784221 Fire collar Aug. 31, 2010
7676991 Fire collar Mar. 16, 2010
7677526 Mechanical override for a valve actuator Mar. 16, 2010
7387134 Fire safety device for propane cylinders Jun. 17, 2008
7373945 Device for closing a conduit May. 20, 2008
7309022 Substance shutoff device and fuel cell Dec. 18, 2007
7293575 Mechanical override for a valve actuator Nov. 13, 2007
7290556 Fire collar Nov. 6, 2007
7273064 Temperature-sensitive safety valve assembly Sep. 25, 2007
7178548 Dry safety device for an inflammable gas Feb. 20, 2007
7111818 Safety valve Sep. 26, 2006
6959719 Fire collar Nov. 1, 2005
6895952 Appliance end fitting May. 24, 2005
6820633 Thermally-sensitive safety device for gas tubing Nov. 23, 2004
6769448 Actuating device Aug. 3, 2004
6644337 Damper assembly having improved strength characteristics Nov. 11, 2003
6644336 Method and apparatus for automatic shutoff of a valve when a substance is present in a flow of fluid Nov. 11, 2003
6615860 Fire block conduit coupler Sep. 9, 2003
6607004 Fire prevention safety device for gas meters Aug. 19, 2003
6484742 Cartridge assembly for valve Nov. 26, 2002
6363962 Crash valve actuator Apr. 2, 2002
6293295 Safety device for a hot water faucet for sanitary use and faucet, particularly thermostat, equipped with said safety element Sep. 25, 2001
6279597 Thermal safety valve for automatically shutting off pipes Aug. 28, 2001
6250326 Dual temperature fire damper releasing system Jun. 26, 2001
6202667 Apparatus and method for stopping the propagation of ignited flammable gas in a conduit Mar. 20, 2001
6176052 Fire retarding division penetrating member Jan. 23, 2001
6161564 Fire transmission prevention system Dec. 19, 2000
6155285 Gas safety valve Dec. 5, 2000
6129105 Interrupter having an anti-fire valve member for a gas meter, and a gas meter fitted with such an interrupter Oct. 10, 2000
6125872 Temperature activated diversion valve Oct. 3, 2000
6105597 Emergency shut-off device for cam-over valve Aug. 22, 2000
6029412 Intumescent interlocking collar Feb. 29, 2000
6019119 Thermal safety device for automatically blocking pipes Feb. 1, 2000
5979867 Quick connect coupling for portable LP gas cylinders Nov. 9, 1999
5950656 Thermal safety fitting for automatically shutting down fluid lines Sep. 14, 1999
5927312 Method and apparatus for extinguishing combustion within combustible tubing Jul. 27, 1999
5836338 Thermal safety device for automatically sealing conduits Nov. 17, 1998
5787918 Reduction valve and gas container valve for a bottle for liquified gas Aug. 4, 1998
5782171 Disconnect mechanisms between a deep fat fry pot and filter vat Jul. 21, 1998
5586722 Temperature and flow control valve Dec. 24, 1996
5577525 Thermal release apparatus for coupling a damper actuator to a damper blade assembly Nov. 26, 1996
5540250 Quick-disconnect fluid coupling Jul. 30, 1996
5524664 Coupling device Jun. 11, 1996
5477877 Overtemperature shut-off valve with sealing spring for automatically shutting off conduits Dec. 26, 1995
5472008 Automatic valve for gaseous fluids, suitable for protecting the pressure regulator from thermal stress and from excess flow to which it may be subjected Dec. 5, 1995
5452736 Rapid fastener, for connecting pipelines for systems for conveying pressurized gas Sep. 26, 1995
5452852 Valves and an improved method of replacing valves in pressurized systems Sep. 26, 1995

1 2 3

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