Refrigeration – Display type – Means removing or preventing condensate on transparent panel
Patent
1980-05-01
1982-04-20
King, Lloyd L.
Refrigeration
Display type
Means removing or preventing condensate on transparent panel
62256, 62282, A47F 304
Patent
active
043252273
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. The door includes a frame member in which two glass members are mounted with an air space between the glass members. 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. In order to minimize any accumulation of condensation between the glass members in the door, an ambient air flow between the glass members is established when the door is in a closed position. During a defrost cycle of operation, the refrigeration mechanism is turned off and the door covering the front access opening is slightly opened. Ambient air is then 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.
REFERENCES:
patent: 1629408 (1927-05-01), Peacock
patent: 3025681 (1962-03-01), Booth
patent: 3496732 (1970-02-01), Vogel et al.
patent: 4145893 (1979-03-01), Vogel
patent: 4161868 (1979-07-01), Kennedy et al.
King Lloyd L.
Tyler Refrigeration Corporation
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