Means for regulating coolant flow

Claim 1

A COOLING APPARATUS COMPRISING AN INLET CONDUIT FOR DIRECTING A FLOW OF FLUID COOLANT WHICH VARIES IN TEMPERATURE AND MASS FLOW TO A RESTRICTED AREA HAVING EQUIPMENT THEREIN WHICH GENERATES HEAT, SENSING MEANS COMPRISING A SUPPORT MEMBER POSITIONED WITHIN SAID CONDUIT IN COMMUNICATION WITH SAID FLUID COOLANT, A CYLINDRICAL HEATING WINDING ON SAID MEMBER, A CLYDRICAL SENSING WINDING ON SAID MEMBER IN COAXIAL RELATIONSHIP WITH SAID HEATING WINDING AND THERMALLY COUPLED TO SAID HEATING WINDING, A SOURCE OF ELECTRICAL CURRENT COUPLED TO SAID HEATING WINDING SO THAT WHEN CURRENT IS PASSED THROUGH SAID HEATING WINDING THE SENSING WINDING IS HEATING TO A PRESELECTED OPERATING TEMPERATURE AND IS COOLED AT A RATE DIRECTLY RELATED TO THE COOLING CAPACITY OF THE COOLANT ON THE EQUIPMENT, A TUBULAR HOUSING COAXIALLY DISPOSED ABOUT SAID WINDINGS, THE WALLS OF SAID HOUSING ADJACENT SAID SENSING WINDING BEING PROVIDED WITH A PLURALITY OF SLOTS TO PERMIT THE PASSAGE OF COOLANT OVER SAID SENSING WINDING, SAID SLOTS BEING AT AN ANGLE TO THE AXES OF THE WINDING, MEANS SENSING THE RESISTANCE OF SAID SENSING WINDING, A TRANSDUCER RESPONSIVE TO SAID RESISTENCE SENSING MEANS, AND MEANS IN SAID CONDUIT FOR CONTROLLING THE FLOW OF FLUID THERETHROUGH, SAID CONTROLLING MEANS BEING CONNECTED TO SAID TRANSDUCER AND RESPONSIVE TO THE OUTPUT OF SAID TRANSDUCER SO AS TO MAINTAIN THE TEMPERATURE RISE OF THE EQUIPMENT AT A RELATIVELY CONSTANT PREDETERMINED VALUE.