Refrigeration – Automatic control – Preventing – removing or handling atmospheric condensate
Patent
1980-05-01
1982-09-07
Tapolcai, Jr., William E.
Refrigeration
Automatic control
Preventing, removing or handling atmospheric condensate
62248, 62256, 62282, F25D 2108, A47F 304
Patent
active
043477100
ABSTRACT:
A refrigerated display case having a display section within a cabinet and a movable door covering a front access opening to such display section. A refrigeration air conduit extends along the top, bottom and rear walls of the cabinet. The air conduit has an outlet opening and an inlet opening at opposing ends thereof with the openings being in alignment so that air leaving the outlet opening will be directed towards and received by the inlet opening thereby forming an air curtain across the front opening of the cabinet along the path inside the door. During a refrigeration cycle of operation of the display case, refrigerated air is circulated through the air conduit and a refrigeration mechanism arranged within the conduit so as to establish a refrigerated air band and a refrigerated air curtain across the front opening in the cabinet. During a defrost cycle of operation, the refrigeration mechanism is turned off and the door covering the front access opening is slightly opened. An ambient air conduit propels ambient air along the front of the display case during a defrost cycle so that the ambient air then can be drawn into the refrigeration air conduit and circulated through the conduit. Such ambient air serves to defrost the refrigeration mechanism and the interior of the refrigeration air conduit.
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Tapolcai, Jr. William E.
Tyler Refrigeration Corporation
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