Refrigeration system and evaporating cooling units

Claim 1

IN APPARATUS OF THE CHARACTER DESCRIBED, THE COMBINATION OF, A CASING CONSTRUCTION HAVING AN AIR INLET AT THE BOTTOM AND AN AIR OUTLET AT THE TOP, BLOWER MEANS POSITIONED WITHIN SAID CASING AND ADAPTED TO DRAW AIR IN THROUGH SAID INLET AND TO DIRECT THE AIR AT AN ELEVATED PRESSURE TOWARD SAID OUTLET, AN INNER SHELL OF FIBER GLASS REINFORCED PLASTIC POSITIONED WITHIN SAID CASING AND PROVIDING A WATER CIRCULATING ZONE WITHIN WHICH WATER PASSES BY GRAVITY IN COUNTER-CURRENT RELATIONSHIP WITH RESPECT TO AIR FLOWING TOWARD SAID OUTLET, SAID INNER SHELL COMPRISING A SUMP TANK AND AN UPPER SHELL AND HAVING WALLS SPACED FROM SAID CASING AND INCLUDING DAMPER MEANS WHICH IS CLOSED AUTOMATICALLY WHEN THERE IS NO AIR CIRCULATION FOR CONTROLLING THE ENTRY OF AIR TO SAID INNER SHELL AND MAINTAINING AN ELEVATED AIR PRESSURE CONDITION AROUND SAID INNER SHELL, AND COIL MEANS POSITIONED WITHIN SAID WATER CIRCULATING ZONE AND ADAPTED TO PASS FLUID IN HEAT EXCHANGE RELATIONSHIP WITH THE AIR AND WATER WITHIN SAID ZONE.