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Class Information
Number: 137/68.18
Name: Fluid handling > Destructible or deformable element controlled > Destructible element > With alarm or indicator
Description: Subject matter that includes a sensing means that sends a signal when the element breaks.

Patents under this class:

Patent Number Title Of Patent Date Issued
8360276 Manual inflator with cylinder connector and status indicator Jan. 29, 2013
8091574 Bursting disc assembly Jan. 10, 2012
7987867 Burst disc arrangement and a method for replacing a burst disc in a burst disc arrangement Aug. 2, 2011
7556063 High overpressure vent structure having spring steel recloser panel Jul. 7, 2009
6924733 Hose separation transmitter system and methods Aug. 2, 2005
6446654 Pressure relief device for a sealed system Sep. 10, 2002
6431196 Combination pressure relief device Aug. 13, 2002
6422420 Compressed gas safety inflator for life vests, life rafts and the like Jul. 23, 2002
6412512 Pressure control valve Jul. 2, 2002
6321771 Pressure relief device for a sealed system Nov. 27, 2001
6213148 Valve lock and adapter Apr. 10, 2001
5934307 Overpressure protector Aug. 10, 1999
5927316 Safety cut-off system Jul. 27, 1999
5775358 Indicator for compressed gas cartridge Jul. 7, 1998
5755249 Fluid flow monitor May. 26, 1998
5694117 Alarm system for rising stem valves Dec. 2, 1997
5643030 Gas cartridge safety inflator apparatus Jul. 1, 1997
5640990 Flexible conduit failure safety valve Jun. 24, 1997
5631634 Flow and pressure sensor May. 20, 1997
5601109 Fluid flow monitor Feb. 11, 1997
5583490 Rupture disk monitoring apparatus Dec. 10, 1996
RE34308 Rupture disc alarm system Jul. 13, 1993
5155471 Low pressure burst disk sensor with weakened conductive strips Oct. 13, 1992
5121766 System for control of oil leakage from damaged tanker Jun. 16, 1992
4978947 Rupturable fluid flow indicator Dec. 18, 1990
4951697 Rupture disk failure indicating apparatus Aug. 28, 1990
4579001 Pressure relief valve with pressure indicating means Apr. 1, 1986
4562741 Pressure relief valve with pressure indicating means Jan. 7, 1986
4408194 Capacitive pressure relief rupture disc monitor Oct. 4, 1983
4372334 Overpressure relief control system Feb. 8, 1983
4352437 Combined pressure relief and indicator mechanism Oct. 5, 1982
4342988 Rupture disc alarm system Aug. 3, 1982
4326589 Anti-freeze arrangement for sprinkler systems Apr. 27, 1982
4263929 Electropneumatic pressure relief indicator Apr. 28, 1981
4232698 Pressure relief valve with pressure indicating means Nov. 11, 1980

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