US Patent 7219687 Resettable bi-stable thermal valve

A resettable thermal valve for controlling the flow of a fluid therethrough comprises a valve assembly housing having a fluid passageway therethrough and a valve coupled to the valve assembly housing and disposed at least partially within the fluid passageway. The valve is moveable between an open position and a close position and is coupled to a resettable, temperature sensitive linear actuator assembly. The linear actuator assembly enables the valve to move from the open position to the closed position when it is heated to a predetermined temperature.