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REFRIGERATION UNIT

  • US 3,712,078 A
  • Filed: 11/22/1971
  • Issued: 01/23/1973
  • Est. Priority Date: 11/22/1971
  • Status: Expired due to Term
First Claim
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1. A refrigerating unit for a refrigerating cabinet comprising:

  • a base, a refrigerating heat exchanger, a chamber on said base for said refrigerating heat exchanger, said chamber having two openings with similar perimeter geometry, a first cover for either of said two openings, a second cover for either of said two openings, said first cover having an air inlet opening and an air outlet opening, circulating fan means in said chamber for moving air from said inlet opening of said first cover into heat exchange relation with said heat exchanger and out of said outlet opening of said first cover when said first cover is over either one of said two openings and said second cover is over the other one of said openings, means mounted on said base exterior of said heat exchanger for liquefying gaseous refrigerant from said heat exchanger and returning to said heat exchanger in liquefied form for evaporation by heat of air carried in heat exchange relation with said heat exchanger by said circulating fan means.

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