Gas cleaning apparatus

Claim 1

GAS CLEAINING APPARATUS COMPRISING IN COMBINATION, A TUBE-IN-TUBE EXTERNAL CONDENSER-EVAPORATOR SECTION PROVIDING RESPCETIVE PASSAGEWAYS FOR RESPECTIVE FLOWS OF GAS AND REFRIGERANT THERETHROUGH IN SEPARATE SEALED RELATIONSHIP TO EACH OTHER AND TO THE AMBIENT ATMOSPHERE AND HAVING GAS INLET MEANS, GAS OUTLET, MEANS, REFRIGERANT INLET MEANS AND REFRIGERANT OULET MEANS, A PRESSURE VESSEL POSITIONED ADJACENT SAID SECTION AND CONNECTING SAID GAS OUTLET MEANS TO A CLEAN GAS OUTLET, SAID SECTION BEING POSITIONED EXTERIORLY OF AND DISPLACED FROM SAID PRESSURE VESSEL, MEANS IN SAID PRESSURE VESSEL FOR REMOVING MOISTURE AND DIRT FROM GAS PASSING THERETHROUGH, MEANS FOR SUPPLYING GAS TO CLEANED UNDER PRESSURE TO THE GAS INLET MEANS OF SAID SECTION, AND MEANS FOR SUPPLYING REFRIGERANT TO THE REFRIGERANT INLET MEANS OF SAID CONDENSEREVAPORATOR SECTION TO CONDENSE CONDENSABLE VAPORS FROM THE GAS PASSING THROUGH SAID SECTION PRIOR TO THE GAS PASSING INTO SAID PRESSURE VESSEL THROUGH THE GAS OUTLET MEANS OF SAID SECTION, SAID SECTION HAVING AN OPEN SPACE THERETHROUGH, AND SAID PRESSURE VESSEL BEING DISPOSED IN SAID OPEN SPACE.