Automatic control of plural heaters in a clothes drier

Claim 1

IN A DRYER OPERABLE THROUGH A DRYING CYCLE AND HAVING MEANS FORMING A DRYING CHAMBER, A PLURALITY OF INDEPENDENTLY OPERABLE HEATING MEANS FOR EVAPORATING MOISTURE FROM ARTICLES PLACED WITHIN SAID CHAMBER, A DRYING CONTROL CIRCUIT INCLUDING SAID HEATING MEANS, RELAY MEANS IN SAID CIRCUIT, SWITCH MEANS IN SAID CIRCUIT IN CONTROL OF SAID RELAY MEANS, DRIVE MEANS IN SAID CIRCUIT FOR CONTROLLING THE CIRCULATION OF AIR THROUGH SAID DRYING CHAMBER, AND A PLURALITY OF THERMALLY RESPONSIVE MEANS IN SAID CIRCUIT LOCATED TO SENSE THE TEMPERATURE OF EXHAUST AIR FROM SAID CHAMBER AND OPERABLE UPON SENSING A FIRST TEMPERATURE OF EXHAUST AIR TO FIRST DEACTIVATE AT LEAST ONE OF THE HEATING MEANS TO PROVIDE A REDUCED THERMAL INPUT TO THE ARTICLES UNDER NORMAL OPERATING CONDITIONS AND OPERABLE UPON SENSING A SECOND TEMPERATURE OF EXHAUST AIR TO THEN DEACTIVATE SAID RELAY MEANS AND DRIVE MEANS, TERMINATING THE DRYING CYCLE.