Refrigeration – Gas controller or director – Cooled gas directed relative to cooled enclosure
Patent
1982-05-24
1984-03-20
Capossela, Ronald C.
Refrigeration
Gas controller or director
Cooled gas directed relative to cooled enclosure
62455, 98116, F25D 1706
Patent
active
044378688
ABSTRACT:
A cold storage enclosure for storing of food products includes a freezer using ammonia as the refrigerant. At least one exhaust unit is provided to exhaust the enclosure in the event of a break in the refrigeration equipment which releases damaging ammonia gases. The exhaust unit is mounted to a coupling chamber unit secured to the roof of the enclosure. The chamber unit includes a tubular insulating wall support with an insulated vapor proof bearier panel secured to the inner end and a damper unit secured in outwardly spaced relation to form a coupling chamber therebetween. An interconnecting linkage is located within the chamber with the linkage coupled to the damper and including a moving arm for forced removal of the bearier panel. A heater in the chamber holds the temperature above freezing to ensure positive operation of the damper even though moisture may accummulate in the chamber and on the operator and/or linkage.
REFERENCES:
patent: 1874043 (1932-08-01), Ilg et al.
patent: 2673514 (1954-03-01), Hanks
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