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Class Information
Number: 169/19
Name: Fire extinguishers > Automatic valves
Description: Valves for normally restraining flow through a fluid system and opening automatically to permit flow upon the occurrence of fire conditions. Usually an increase of temperature in the protected area is the ultimate condition which governs the operation of the valve.










Sub-classes under this class:

Class Number Class Name Patents
169/20 Pressure controlled 79


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
6230815 Sprinkler or spray head May. 15, 2001
6158476 Tune or hose capable of withstanding extreme heat flux densities Dec. 12, 2000
6152236 Combined trigger and concealing device for a sprinkler head Nov. 28, 2000
6131667 Manual and automatic fire extinguishing systems Oct. 17, 2000
5990789 System and method for preventing smoke and fire damage to people and equipment in a clean room area from a fire Nov. 23, 1999
5908074 Fire detecting valve activation assembly for vehicle fire suppression systems Jun. 1, 1999
5720351 Fire protection preaction and deluge control arrangements Feb. 24, 1998
5531275 Installation for fighting fire Jul. 2, 1996
5485884 Hydride operated reversible temperature responsive actuator and device Jan. 23, 1996
5439028 Modular valve for a building standpipe Aug. 8, 1995
5295503 Modular valve for a building standpipe Mar. 22, 1994
5183116 Variable pressure regulator for extended fire-extinguishing system Feb. 2, 1993
5172767 Water spray control system for underground mining machine Dec. 22, 1992
5094298 Fire sprinkler apparatus Mar. 10, 1992
5027905 Fire sprinkler control apparatus Jul. 2, 1991
4984637 Electronic fire protection system Jan. 15, 1991
4979572 Fire extinguisher installation Dec. 25, 1990
4947886 Temperature actuated flow control device Aug. 14, 1990
4938292 Flush mounted fire sprinkler head Jul. 3, 1990
4905765 Smoke detector/remote controlled shape-memory alloy fire extinguisher discharge apparatus Mar. 6, 1990
4893680 Fire suppression activator Jan. 16, 1990
4738314 Ultra fast fusible link assembly with mechanical advantage Apr. 19, 1988
4715448 Fire extinguisher outlet head Dec. 29, 1987
4706758 Automatic on-off sprinkler head Nov. 17, 1987
4691783 Automatic modular fire extinguisher system for computer rooms Sep. 8, 1987
4664197 Fire extinguishing system May. 12, 1987
4609048 Apparatus for automatically extinguishing fire Sep. 2, 1986
4553602 Automatic on-off sprinkler head Nov. 19, 1985
4540013 Fire responsive stem retention apparatus Sep. 10, 1985
4531588 Fire suppression system Jul. 30, 1985
4506737 Fire sprinkler Mar. 26, 1985
4465141 Fire sprinkler apparatus Aug. 14, 1984
4373588 Fire extinguishing apparatus Feb. 15, 1983
4359097 Sprinkler system Nov. 16, 1982
4265316 Fire extinguishing system having a linkage operated valve May. 5, 1981
4258795 On-off sprinkler head having an offset drive motor Mar. 31, 1981
4183371 Thermal valve Jan. 15, 1980
4088192 Heat activated plunger May. 9, 1978
4085765 Pressure relief valve Apr. 25, 1978
4033740 Combined environmental control and fire protection system Jul. 5, 1977
4003395 Quick-opening valve operated by explosive charge Jan. 18, 1977
3991829 Delayed closing fire sprinkler heads Nov. 16, 1976
3990516 Pneumatic time delay valve Nov. 9, 1976

1 2










 
 
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