Refrigeration – Display type – With air controlling or directing means
Patent
1980-02-19
1981-09-15
King, Lloyd L.
Refrigeration
Display type
With air controlling or directing means
62265, 312116, A47F 304, F25D 2302
Patent
active
042889928
ABSTRACT:
Curtain structure for substantially covering the access opening of an open-sided, display-type, refrigerated food cabinet. A first curtain comprises a flexible sheet prestressed to roll up and fixed at its upper edge to the ceiling of the cabinet inboard of the access opening. The first curtain may be unrolled and its bottom edge attached to the floor of the cabinet to substantially block air movement into and out of the cabinet. A second curtain comprises a plurality of side-by-side, elongate strips of flexible transparent sheet material, fixed together at their upper ends and supported on the cabinet at the top of the access opening. The lower ends of the strips are free of each other and terminate slightly above the bottom of the access opening. The second curtain is spaced away from the closed position of the first curtain by an air layer providing a thermal barrier across the access opening when access to the interior of the cabinet is not needed. With the first curtain rolled up, the second curtain obstructs air movement into and out of the cabinet but permits visual and physical access to the interior of the cabinet through the access opening. The curtain structure is particularly adaptable to use with refrigerated cabinets having an air curtain across the access opening, with the first curtain interposed between the second curtain and air curtain.
REFERENCES:
patent: 2041258 (1936-05-01), Mitchell
patent: 3186185 (1965-06-01), Bently et al.
patent: 3241899 (1966-03-01), Donker
patent: 3403525 (1968-10-01), Beckwith et al.
patent: 3542445 (1970-11-01), Donker
patent: 4109484 (1978-08-01), Cunningham
patent: 4117698 (1978-10-01), Vogel
patent: 4186790 (1980-02-01), Schenker et al.
Eliason Corporation
King Lloyd L.
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