Refrigeration – Automatic control – Preventing – removing or handling atmospheric condensate
Patent
1976-05-17
1977-05-31
King, Lloyd L.
Refrigeration
Automatic control
Preventing, removing or handling atmospheric condensate
62256, F25D 2106, A47F 304
Patent
active
040261212
ABSTRACT:
An open show case of cold-air-circulation type having a front access opening, a passage with a cooler and an air fan for circulating cold air therethrough and forming a cold air curtain across the access opening, and at least one other air passage with an air fan for circulating air and forming another protective layer of air curtain outside of the cold air curtain is defrosted by controllably operating the fans respectively in mutually adjacent air passages to blow air in mutually opposite directions thereby to cause air to flow in short-circuited flow at passage openings at the access opening, whereby air ejected from one passage at the access opening is immediately sucked into the adjacent passage without crossing the access opening, thereby to draw in warm outside air into the cold air passage and thereby to accomplish defrosting.
REFERENCES:
patent: 2494480 (1950-01-01), MacMaster
patent: 3287929 (1966-11-01), Beckwith
patent: 3496732 (1970-02-01), Vogel et al.
patent: 3827254 (1974-08-01), MacMaster et al.
patent: 3850003 (1974-11-01), Beckwith et al.
patent: 3937033 (1976-02-01), Beckwith et al.
Aokage Yoshitaka
Yamana Yoshio
Adams Bruce L.
Burns Robert E.
Fuji Denki Seizo Kabushiki Kaisha
King Lloyd L.
Lobato Emmanuel J.
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