Heating means for compressed-gas circuit interrupters

Claim 1

IN A COMPRESSED-GAS CIRCUIT INTERRUPTER OF THE TYPE HAVING A METALLIC TANK, A PAIR OF TERMINAL BUSHINGS EXTENDING INTO SAID TANK AND CONNECTED TO SEPARABLE CONTACT STRUCTURES WITHIN THE TANK, AND A HIGH-PRESSURE RESERVOIR FOR STORING HIGH-PRESSURE FLUID TO BE FED INTO SAID TANK; THE COMBINATION OF MEANS FOR MAINTAINING THE TEMPERATURE OF GAS STORED IN SAID HIGH-PRESSURE RESERVOIR ABOVE A PREDETERMINED MINIMUM TEMPERATURE, COMPRISING TRANSFORMER WINDING MEANS INDUCTIVELY COUPLED TO AT LEAST ONE OF SAID TERMINAL BUSHINGS, WHEREBY ALTERNATING CURRENT FLOWING THROUGH SAID TERMINAL BUSHINGS WILL INDUCE A CURRENT IN SAID WINDING MEANS, ELECTRICALLY-ENERGIZED HEATING MEANS FOR THE GAS STORED IN SAID HIGH-PRESSURE RESERVOIR, CIRCUIT MEANS CONNECTING THE WINDING MEANS TO THE HEATING MEANS WHEREBY CURRENT INDUCED IN SAID WINDING MEANS IS ADAPTED TO ENERGIZED SAID HEATING MEANS, AND A TEMPERATURE-SENSITIVE SWITCH DEVICE RESPONSIVE TO THE TEMPERATURE OF THE GAS WITHIN SAID HIGH-PRESSURE WHEREBY THE WINDING MEANS WILL WITH SAID WINDING MEANS, WHEREBY THE WINDING MEANS WILL BE SHORTED TO PREVENT ENERGIZATION OF THE HEATING MEANS WHEN THE TEMPERATURE OF THE GAS WITHIN THE HIGH-PRESSURE RESERVOIR EXCEEDS A PREDETERMINED MAXIMUM TEMPERATURE.