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Class Information
Number: 137/68.12
Name: Fluid handling > Destructible or deformable element controlled > Destructible element > Combined destructible and fusible element
Description: Subject matter in which the element breaks and melts at a specific temperature to control the fluid flow or has, in addition to the destructible element, a separate element which melts at a specific temperature to control the fluid flow.

Patents under this class:

Patent Number Title Of Patent Date Issued
8235249 Heat actuated puncturing mechanism for a compressed gas cartridge Aug. 7, 2012
8141572 High pressure isolation valve system Mar. 27, 2012
7950409 Rupture disc assembly that withstands much higher back pressures than actuation pressure May. 31, 2011
7828006 Safety flow guide protection device Nov. 9, 2010
7353881 Ganged fire extinguisher system Apr. 8, 2008
6955226 Ganged fire extinguisher system Oct. 18, 2005
6923199 Damage resistant valve assembly Aug. 2, 2005
6802332 Shear valve Oct. 12, 2004
6742538 Method and apparatus for orbital and seal welded relief device on a compressed gas cylinder Jun. 1, 2004
6571818 Damage resistant break away valve stem Jun. 3, 2003
6488044 Pressure relief apparatus Dec. 3, 2002
6471082 Fusible pressure relieving drum closure Oct. 29, 2002
6341616 Fire protection fluid relief valve Jan. 29, 2002
6321768 Fluid flow shutdown and pressure relief valve with a fusable element Nov. 27, 2001
6296808 Method and apparatus for protecting building personnel during chemical or biological attack Oct. 2, 2001
6209569 Safety shut-off valve assembly for a fuel dispenser Apr. 3, 2001
5765587 Automatic valves Jun. 16, 1998
5730169 Temperature and impact sensitive safety valve Mar. 24, 1998
5647390 Thermal relief valve with improved bayonet Jul. 15, 1997
5551470 Thermally responsive pressure relief apparatus Sep. 3, 1996
5542445 Temperature and impact sensitive safety valve Aug. 6, 1996
5435333 Thermally responsive pressure relief apparatus Jul. 25, 1995

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