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Class Information
Number: 169/57
Name: Fire extinguishers > Special applications > Condition responsive control > Having fusible plug, support, or holder
Description: Apparatus in which a fire extinguishing material is directly restrained against discharge by a plug, support or other device which is in contact with said material until said device is fused, melted or deformed when a predetermined condition is sensed, or in which such a plug, support, etc., operates similarly in another cooperative relation with the extinguishing means.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8607887 Closure for sprinklers and nozzles having heat tripping device Dec. 17, 2013
8596372 Thermal triggering mechanism having a glass ampoule for aerosol fire extinguishers Dec. 3, 2013
8528652 Fire extinguishing ball Sep. 10, 2013
8505642 Methods and apparatus for dual stage hazard control system Aug. 13, 2013
8353357 Fire protection sprinkler with highly sensitive trigger Jan. 15, 2013
8353356 Residential flat plate concealed sprinkler Jan. 15, 2013
8322453 Sprinkler head Dec. 4, 2012
8235249 Heat actuated puncturing mechanism for a compressed gas cartridge Aug. 7, 2012
8176987 Self-aligning cover spring for a concealed sprinkler May. 15, 2012
8172001 Pendent residential fire protection sprinklers May. 8, 2012
8151897 Ordinary hazard extended coverage sidewall sprinklers and systems Apr. 10, 2012
7891241 Remote fire extinguisher station inspection Feb. 22, 2011
7891435 Remote inspection of emergency equipment stations Feb. 22, 2011
7878419 Spray head with covers Feb. 1, 2011
7841420 Self-activated fire extinguisher Nov. 30, 2010
7703640 Heat actuated puncturing mechanism for a compressed gas cartridge Apr. 27, 2010
7699116 Anti-skipping sprinkler Apr. 20, 2010
7624812 Extended coverage, storage, automatic fire protection sprinkler Dec. 1, 2009
7614458 Ignition unit for aerosol fire-retarding delivery device Nov. 10, 2009
7610966 Stovetop fire extinguisher Nov. 3, 2009
7574911 Remote fire extinguisher station inspection Aug. 18, 2009
7461701 Aerosol fire-retarding delivery device Dec. 9, 2008
7395868 Apparatus for blocking a medium flow passage in a spray head, and spray head Jul. 8, 2008
7389825 Aerosol fire-retarding delivery device Jun. 24, 2008
7343980 Enhanced protection extended coverage pendent fire protection sprinkler Mar. 18, 2008
7188679 Remote fire extinguisher station inspection Mar. 13, 2007
7182143 Automatic appliance fire extinguisher system Feb. 27, 2007
7143833 Portable fire-extinguisher Dec. 5, 2006
7096964 Sprinklers Aug. 29, 2006
7036603 Fast response sprinkler head and fire extinguishing system May. 2, 2006
6976544 Sprinkler Dec. 20, 2005
6964307 Sprinklers Nov. 15, 2005
6923265 Submerged thermally sensitive element for an automatic fire sprinkler Aug. 2, 2005
6868916 Fire sprinkler systems Mar. 22, 2005
6854668 Extended coverage ordinary hazard sprinkler system Feb. 15, 2005
6851483 Fire suppression system and solid propellant aerosol generator for use therein Feb. 8, 2005
6840329 Cover assembly for a concealed sprinkler head Jan. 11, 2005
6799639 Horizontal sidewall sprinkler head Oct. 5, 2004
6746325 Heat distorting support clip for air handling luminaire Jun. 8, 2004
6725941 Fire retardant delivery system Apr. 27, 2004
6715561 Vacuum dry sprinkler system containing a sprinkler head with expulsion assembly Apr. 6, 2004
6669111 Protector for thermally responsive member of sprinkler head Dec. 30, 2003
6637519 System and method for extinguishing a fire Oct. 28, 2003
6585054 Fast response sprinkler head and fire extinguishing system Jul. 1, 2003
6585055 Remote fire extinguisher station inspection Jul. 1, 2003
6554077 Quick response adjustable automatic sprinkler arrangements Apr. 29, 2003
6484809 Molded sprinkler cover assembly and method for manufacturing the same Nov. 26, 2002
6450266 Sprinkler arrangement for document storage Sep. 17, 2002
6450265 Large orifice ESFR sprinkler arrangement Sep. 17, 2002
6446732 VELO ECOH sprinkler arrangement Sep. 10, 2002

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