Automatic refrigerating-defrosting system

Claim 1

A REFRIGERATING-EVAPORATOR DEFROSTING SYSTEM COMPRISING A MEANS FOR COMPRESSING REFRIGERANT, A PIPELINE LEADING FROM SAID COMPRESSING MEANS TO A FIRST PIPELINE JUNCTION, A FIRST PIPELINE LEADING FROM SAID JUNCTION TO A COIL IMMERSED IN A SOLUTION HAVING A LOW FREEZING POINT, A CONDENSING COIL FOR CHANGING HIGH-TEMPERATURE GASEOUS REFRIGERANT TO REFRIGERANT LIQUID, A PIPELINE CONNECTING SAID CONDENSING COIL TO SAID IMMERSED COIL, A LIQUID REFRIGERANT RECEIVER, A PIPELINE CONNECTING SAID LIQUID REFRIGERANT RECEIVER WITH SAID CONDENSING COIL, VALVE MEANS FOR CHANGING HIGH PRESSURE REFRIGERANT LIQUID TO A LOW TEMPERATURE, LOW PRESSURE GASEOUS REFRIGERANT SOLUTION, A PIPELINE CONNECTING SAID VALVE MEANS WITH SAID LIQUID REFRIGERANT RECEIVER, AN EVAPORATOR WHEREIN SAID REFRIGERANT IS ADAPTED TO HAVING HEAT ADDED THERETO, CONNECTING MEANS BETWEEN SAID VALVE MEANS AND SAID EVAPORATOR, A PIPELINE LEADING FROM SAID EVAPORATOR TO A SECOND PIPELINE JUNCTION, A FIRST PIPELINE LEADING FROM SAID SECOND JUNCTION TO A SECOND COIL IMMERSED IN SAID SOLUTION WITH A LOW FREEZING POINT, A PIPELINE LEADING FROM SAID SECOND IMMERSED COIL TO A THIRD PIPELINE JUNCTION, A FIRST PIPELINE LEADING FROM SAID THIRD PIPELINE JUNCTION TO THE LOW PRESSURE SIDE OF SAID COMPRESSING MEANS, A SECOND PIPELINE LEADING FROM SAID FIRST PIPELINE JUNCTION TO A VALVE, SAID VALVE HAVING A NORMALLY OPEN PASSAGEWAY THERETHROUGH AND A NORMALLY CLOSED PASSAGEWAY THERETHROUGH AND MEANS TO CLOSE SAID NORMALLY OPEN PASSAGEWAY WHILE SIMULTANEOUSLY OPENING SAID NORMALLY CLOSED PASSAGEWAY, SAID PASSAGEWAYS IN SAID VALVE NOT BEING CAPABLE OF HAVING THEIR CONTENTS INTERMIXED, SAID SECOND PIPELINE LEADING FROM SAID FIRST PIPELINE JUNCTION TO THE NORMALLY CLOSED PASSAGEWAY OF SAID VALVE, A PIPELINE LEADING FROM SAID NORMALLY CLOSED PASSAGEWAY OF SAID VALVE TO SAID EVAPORATOR, A PIPELINE EXTENDING FROM SAID SECOND PIPELINE JUNCTION TO THE NORMALLY OPEN PASSAGEWAY OF SAID VALVE, AND A PIPELINE LEADING FROM THE EXIT OF SAID NORMALLY OPEN PASSAGEWAY OF SAID VALVE TO SAID THIRD PIPELINE JUNCTION.