Heat pump for cooling or heating air

Claim 1

IN A HEAT PUMP, IN COMBINATION, AN INSIDE COIL CAPABLE OF FUNCTIONING EITHER AS AN EVAPORATOR FOR REFRIGERANT OR AS A CONDENSER FOR REFRIGERANT, A MOTOR-OPERATED COMPRESSOR, A FOUR-WAY REVERSING VALVE, A HOT GAS PIPE CONNECTING SAID COMPRESSOR TO SAID FOUR-WAY REVERSING VALVE, A SUCTION PIPE CONNECTING SAID FOUR-WAY REVERSING VALVE TO SAID COMPRESSOR, AN OUTSIDE COIL CONDUIT CONNECTING SAID FOUR-WAY REVERSING VALVE TO SAID INSIDE COIL, A FAN ARRANGED TO BLOW A BLAST OF AIR OVER SAID INSIDE COIL, A SERIES OF AUXILIARY ELECTRIC HEATING MEANS SO LOCATED AS TO SUPPLY SUPPLEMENTAL HEAT TO SUCH BLAST OF AIR, THERMOSTATIC MEANS TO PROGRESSIVELY ACTIVATE SAID ELECTRIC HEATING MEANS IN ACCORDANCE WITH HEAT REQUIREMENTS EXCEEDING THE HEAT SUPPLIED BY SAID INSIDE COIL, AN OUTSIDE COIL CAPABLE OF FUNCTIONING EITHER AS AN EVAPORATOR FOR REFRIGERANT OR AS A CONDENSER FOR REFRIGERANT, SAID FOR-WAY REVERSING VALVE BEING SETTABLE EITHER TO DIRECT HOT COMPRESSED REFRIGERANT IN GASEOUS PHASE THROUGH SAID INSIDE COIL CONDUIT AND THEREBY CAUSE SAID INSIDE COIL TO FUNCTION AS A CONDENSER, AND HENCE ACT AS A HEATER, OR TO WITHDRAW VAPORIZED REFRIGERANT THROUGH SAID INSIDE COIL