Temperature regulated flow control valve

Claim 1

TEMPERATURE REGULATED FLUID FLOW CONTROL APPARATUS COMPRISING, IN COMBINATION; (A) A BODY, (B) A FLUID PASSAGE DEFINED IN SAID BODY, SAID PASSAGE HAVING A CYLINDRICAL WALL PORTION, (C) AN ANNULAR RECESS DEFINED IN SAID BODY CIRCUMSCRIBING AND INTERSECTING SAID PASSAGE, SAID RECESS HVING A SUBSTANTIALLY CIRCULAR TRANSVERSE CROSS SECTION IN AXIAL ALIGNMENT WITH AND ANNULARLY INTERSECTING SAID PASSAGE CYLINDRICAL WALL PORTION TO DEFINE A SLOT THEREIN, (D) A THERMALLY EXPANDABLE AND CONTRACTIBLE ANNULAR CONTROL ELEMENT CLOSELY RECEIVED WITHIN SAID RECESS AND ADAPTED TO EXTEND INTO SAID PASSAGE, THE EXTENDED DISTANCE OF SAID CONTROL ELEMENT BEING A FUNCTION OF CONTROL ELEMENT TEMPERATURE, SAID ANNULAR CONTROL ELEMENT BEING OF CIRCULAR TRANSVERSE CROSS SECTION, AND (E) A PROJECTION LOCATED WITHIN SAID PASSAGE CONCENTRIC TO SAID CYLINDRICAL WALL PORTION AND IN AXIAL ALIGNMENT WITH SAID RECESS, SAID PROJECTION HAVING A CIRCULAR CROSS SECTION PORTION, SAID CIRCULAR CROSS SECTION PORTION HAVING A CONICAL SURFACE ADAPTED TO COOPERATED WITH SAID ANNULAR CONTROL ELEMENT TO DEFINE A FLUID FLOW REGULATING CONSTRICTION.