Refrigeration – Display type – With air controlling or directing means
Patent
1981-01-21
1983-11-15
Makay, Albert J.
Refrigeration
Display type
With air controlling or directing means
62151, 62 80, A47F 304
Patent
active
044148224
ABSTRACT:
A refrigerated display case having a display space and an access opening, reversible fans for circulating air through an inner air conduit and across the access opening between a first outlet and a first inlet in a refrigeration mode to establish a primary air band; a second set of fans for circulating air through a second air conduit and across the access opening adjacent to and outwardly of the inner primary air band between a second outlet and second inlet to establish a secondary air band; and defrost cycle control means for reversing the air flow direction of the primary air band during a defrost cycle while maintaining the air flow direction of the second air band continuously in the same direction during both refrigeration and defrost cycles. The primary band inlet region and secondary band outlet region are so aligned as to cause primary band air flowing out of the inner inlet duct to collide with secondary band air flowing out of the secondary outlet duct to substantially reverse the primary band air flow direction and cause a substantial part of the primary band to flow outside the display case adjacent to and along the front of the case.
REFERENCES:
patent: 4026121 (1977-05-01), Aokage et al.
Bennett Henry
Makay Albert J.
Tyler Refrigeration Corporation
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