Temperature control relief valve

Claim 1

A CONTROL COMPRISING: (A) A VALVE BODY HAVING INLET AND DISCHARGE CHAMBERS, A FLUID OPENING PROVIDING COMMUNICATION BETWEEN SAID CHAMBERS, AND AN INLET AND AN OUTLET PROVIDING INGRESS AND EGRESS TO SAID INLET AND DISCHARGE CHAMBERS RESPECTIVELY; (B) A CLOSURE MEMBER DISPOSED IN SAID VALVE BODY AND MOVABLE BETWEEN A FIRST POSITION CLOSING SAID FLUID OPENING AND A SECOND POSITION AWAY FROM SAID OPENING PERMITTING FLUID TO PASS THROUGH SAID OPENING; (C) MEANS URGING SAID CLOSURE MEMBER TO THE FIRST POSITION; (D) A THERMAL ACTUATOR FIXED TO SAID VALVE BODY WITHIN SAID INLET CHAMBER AND INCLUDING AN ACTUATOR MEMBER WHICH MOVES RELATIVE TO SAID VALVE BODY UPON A HEAT CONDITION; (E) A STEM MEMBER SLIDABLY DISPOSED IN A STEM OPENING IN SAID VALVE BODY; (F) SAID STEM MEMBER HAVING ONE END ADJACENT SAID CLOSURE MEMBER AND THE OTHER END EXTENDING OUTSIDE SAID VALVE BODY, SAID STEM MEMBER INCLUDING MEANS EXTERNAL OF THE BODY FOR ACTIVATING A MECHANISM; (G) MEANS OPERATIVELY INTERPOSED BETWEEN SAID ACTUATOR MEMBER AND SAID STEM MEMBER AND ENGAGING BOTH MEMBERS SO THAT MOVEMENT OF SAID ACTUATOR MEMBER MOVES SAID STEM MEMBER; AND, (H) MEANS PROVIDING A LOST MOTION CONNECTION BETWEEN SAID CLOSURE MEMBER AND AT LEAST ONE OF THE OTHER MEMBERS WHEREBY A PREDETERMINED HEAT CAUSES SAID ACTUATOR MEMBER TO MOVE SAID STEM MEMBER A PREDETERMINED DISTANCE FOR ACTUATING A MECHANISM BEFORE SAID ONE OTHER MEMBER MOVES SAID CLOSURE MEMBER AWAY FROM SAID FLUID OPENING.