Sensor-controlled means for regulating the temperature of a fluid flow

Claim 1

TEMPERATURE CONTROL MEANS FOR FLUID FLOW COMPRISING: (A) A VALVE HAVING A BODY WITH TWO INLETS, EACH FOR WATER AT DIFFERENT TEMPERATURES, AND AN OUTLET WITH A TEMPERATURE SENSOR IN THE PATH OF WATER FLOW THROUGH THE OUTLET AND HAVING AN ELECTRICAL RESISTANCE THAT VARIES IN RESPONSE TO CHANGES OF THE LEVEL OF TEMPERATURE OF THE WATER PASSING THROUGH SAID OUTLET, (B) A VALVE SEAT IN THE VALVE BETWEEN SAID INLET AND THE OUTLET, (C) A POPPET PROVIDED WITH TWO SPACED SEAT-CLOSING ELEMENTS, SAID SEATS AND ELEMENTS BEING RELATIVELY SPACED SO THAT, UPON MOVEMENT OF THE POPPET, ONE SAID ELEMENT MOVES IN SEAT-CLOSING DIRECTION WHILE THE OTHER MOVES IN SEAT-OPENING DIRECTION, THEREBY PROPORTIONING THE FLOW FROM THE INLETS TO THE OUTLET ACCORDING TO THE POSITIONS OF THE POPPET ELEMENTS, (D) SOLENOID MEANS WHICH, WHEN ELECTRICALLY ENERGIZED, MOVES SAID POPPET, (E) A WHEATSTONE BRIDGE CONNECTED TO A SOURCE OF ELECTRIC CURRENT AND PROVIDED, IN TWO OF ITS LEGS, WITH FIXED REFERENCE RESISTORS, A SENSOR LEG OF SAID BRIDGE