Refrigeration – Display type – With air controlling or directing means
Patent
1979-03-30
1982-01-05
Yasich, Daniel M.
Refrigeration
Display type
With air controlling or directing means
A47F 304
Patent
active
043087264
ABSTRACT:
An open top refrigerated display case having an upper display portion for displaying refrigerated products and a lower storage portion for storing refrigerated products. A cooling mechanism cools both the display portion and storage portion of the display case. The cooling mechanism establishes a refrigerated air band which encircles the display portion of the display case. This refrigerated air band is established by circulating air through an air conduit which surrounds the display portion and is positioned above the storage portion of the display case. Mounted within the air conduit is a fan for circulating air through the conduit and a set of evaporation coils for cooling the air passing through the conduit. Air is expelled from one end of the conduit at an outlet opening located near the top of the display case and such air is propelled across the opening in the display case towards the opposite end of the case where it is received by an inlet opening of the air conduit. In this manner, air can be circulated by the fan within the air conduit along the conduit and across the opening in the top of the display case thereby forming an air curtain across the top of the display case. During a refrigeration cycle the air passing along this air band is cooled. In addition, air from the air conduit is diverted before it has passed through the evaporation coils into the lower storage portion where it is directed around the storage portion and flows back into the air conduit where it is recirculated by the fan within such conduit.
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Abraham Fayez F.
Perez Arthur
Tyler Refrigeration Corporation
Yasich Daniel M.
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