Temperature and speed responsive fluid coupling

Claim 1

A FLUID COUPLING DEVICE COMPRISING A DRIVE SHAFT, AN OUTER CASING ROTATABLY MOUNTED ON SAID SHAFT, SAID CASING HAVING A DIVIDER PLATE THEREIN SEPARATING THE SPACE WITHIN SAID CASING INTO A FLUID RESERVOIR AND A DRIVE CHAMBER, A DRIVE DISC MOUNTED ON SAID SHAFT WITHIN SAID DRIVE CHAMBER, SAID DRIVE DISC HAVING SURFACES DISPOSED IN CLOSE FACE-TO-FACE AND SPACED RELATION WITH SURFACES OF SAID PLATE AND OUTER CASING, AN APERTURE IN SAID PLATE PROVIDING A PORT OPENING INTO SAID RESERVOIR AND INTO SAID DRIVE CHAMBER FOR FILLING THE SPACES BETWEEN SAID DISC, PLATE AND CASING SURFACES WITH FLUID FROM SAID RESERVOIR TO CREATE FLUID DRIVE COUPLING OF SAID CASING AND SAID DISC, THE DEGREE OF COUPLING THEREBETWEEN VARYING WITH THE VOLUME OF FLUID IN SAID DRIVE CHAMBER, A DRAIN APERTURE IN SAID PLATE FOR DRAINING FLUID FROM SAID DRIVE CHAMBER TO SAID RESERVOIR, A VALVE MEMBER HAVING A PORTION OVERLYING SAID PORT AND PIVOTALLY MOUNTED ON SAID DIVIDER PLATE FOR MOVEMENT INTO AND OUT OF SEATING RELATION WITH SAID PORT, TEMPERATURE RESPONSIVE MEANS MOUNTED EXTERIORLY OF SAID OUTER CASING HAVING MEANS EXTENDING WITHIN SAID CASING COOPERATING WITH SAID VALVE MEMBER TO EXERT A FORCE THEREON URGING SAID VALVE MEMBER INTO SEATING RELATION WITH SAID PORT, SAID FORCE VARYING INVERSELY WITH CHANGES IN THE TEMPERATURE AMBIENT TO SAID TEMPERATURE RESPONSIVE MEANS, RESILIENT MEANS URGING SAID VALVE MEMBER AWAY FROM SEATING RELATION WITH SAID PORT, AND A WEIGHT MOUNTED ON SAID VALVE MEMBER AND RESPONSIVE TO CENTRIFUGAL FORCES CREATED BY ROTATION OF SAID CASING FOR URGING SAID VALVE MEMBER AWAY FROM SEATING RELATION WITH SAID PORT, WHEREBY AT ELEVATED SHAFT SPEEDS THE CENTRIFUGAL FORCE GENERATED BY THE PRESENCE OF SAID WEIGHT SUBSTANTIALLY AIDS THE FORCE EXERTED BY SAID RESILIENT MEANS IN OPPOSING THE FORCE EXERTED BY SAID TEMPERATURE RESPONSIVE MEANS TO THEREBY ESTABLISH AN EXPONENTIAL INCREASE IN THE DEGREE OF COUPLING BETWEEN SAID SHAFT AND SAID CASING WITH INCREASE IN SAID TEMPERATURE, AND AT REDUCED SHAFT SPEEDS THERE IS MAINTAINED A SUBSTANTIALLY LINEAR RELATION BETWEEN THE DEGREE OF COUPLING AND INCREASES IN SAID TEMPERATURE.