Air conditioners and controls therefor

Claim 1

AN AIR CONDITIONING SYSTEM COMPRISING: FIRST AND SECOND HEAT EXCHANGE UNITS; A CLOSED CONDUIT SYSTEM CONNECTING SAID UNITS; A COMPRESSOR AND EXPANSION VALVE MEANS IN SAID CONDUIT SYSTEM; VALVE MEANS IN SAID CONDUIT SYSTEM TO PERMIT SELECTIVE ALTERNATE OPERATION OF SAID FIRST AND SECOND UNITS AS A CONDENSER AND AS AN EVAPORATOR; A FIRST BLOWER ADAPTED TO BLOW AIR OVER SAID FIRST UNIT; A SECOND BLOWER ADAPTED TO BLOW AIR OVER SAID SECOND UNIT; EACH OF SAID BLOWERS HAVING AN AIR EXHAUST THROAT; AN AIR DAMPER PLATE PIVOTALLY MOUNTED IN THE THROAT OF EACH BLOWER FOR CONTROLLING THE VOLUME OF AIR PASSING THERETHROUGH; AND A TEMPERATURE RESPONSIVE CONTROL DEVICE TO URGE SAID DAMPER PLATE IN SAID FIRST BLOWER IN A DIRECTION TO DECREASE THE VOLUME OF AIR PASSING THROUGH THE THROAT OF SAID BLOWER UPON A DROP IN TEMPERATURE WHEREBY THE VOLUME OF AIR PASSING OVER SAID FIRST UNIT IS DECREASED PROPORTIONATELY.