Patent ID: 8230939

Claim:
A system for extinguishing cooking stove fires, comprising: a residential cooking stove having an electrical input for connection to an electrical power supply, wherein said cooking stove includes electrically energized heating elements which are energized by said electrical power supply; a pneumatically operated electrical disconnect device having normally closed electrical contacts therein, wherein said pneumatically operated electrical disconnect device is interfaced electrically between said electrical power supply and said electrical input; a fire extinguishing system comprising: one or more pressurized vessels containing a fire extinguishing material which is pressurized by a propellant gas, wherein said pneumatically operated electrical disconnect device is in fluid communication with said one or more vessels; and one or more thermally actuated spray heads in fluid communication with said one or more vessels, wherein said one or more spray heads are located over said cooking stove; wherein, in the event of a fire on said cooking stove, fire extinguishing material is released from said one or more vessels and communicated to said one or more spray heads to extinguish the fire, and simultaneously, gas pressure of said propellant gas is released from said one or more vessels and communicated to said pneumatically operated electrical disconnect device such that said gas pressure will cause opening of said normally closed electrical contacts thereby disconnecting said electrical power supply from said cooking stove and its heating elements.