A - Human Necessities – 47 – F
Patent
A - Human Necessities
47
F
62/47
A47F 3/04 (2006.01) F25B 47/02 (2006.01) F25B 5/02 (2006.01)
Patent
CA 1316000
ABSTRACT OF THE DISCLOSURE A low-temperature showcase comprising: a case main body having at one side thereof an inlet-outlet opening for commodities and including an inner wall, an outer wall and a partition wall defining between the inner and outer walls an inner passage and an outer passage for passing air therethrough, the partition wall having a window at a portion thereof between two heat exchangers; the two heat exchangers disposed in the inner passage and the outer passage, the inner heat exchanger being positioned upstream of and at a predetermined distance from the outer heat exchanger with respect to the same direction of air flows; blowers disposed in the inner and outer passages respectively for passing air through the two passages in the same direction and adapted to form at least a double air curtain at the inlet-outlet opening with the air circulated through the inner and outer passages when at least the inner heat exchanger is operated for refrigeration; a damper for opening or closing the window; and a control unit for applying the damper instructions to open the window and controlling the operation of the two blowers when the inner heat exchanger is operated for defrosting and the outer heat exchanger is operated for refrigeration.
614756
Marks & Clerk
Sanyo Electric Co. Ltd.
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