F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
F25B 47/02 (2006.01) F25B 39/02 (2006.01) F25D 21/04 (2006.01) F25D 21/06 (2006.01) F28D 1/04 (2006.01) F28D 1/047 (2006.01) F28F 1/32 (2006.01) F25B 5/00 (2006.01)
Patent
CA 2446025
An evaporator is provided having first and second independent evaporator coils. The evaporator is for use in a refrigerated display case, either open or closed, having a display length. Each of the evaporator coils is co-extensive along the display length. The evaporator coils are alternately defrosted and cooled in such a manner as to maintain a substantially constant cooling temperature throughout the refrigerated display case, even during a defrost cycle. An independent set of cooling fins is mounted to each of the evaporator coils for absorbing heat when a refrigerant, either liquid or gas, is circulated and evaporates in the evaporator coils, thus cooling the display case. A separate return is provided for each separate evaporator coil, though the two returns preferably join into a common return, thereby facilitating maintenance of a substantially constant cooling temperature.
Lalumiere Rejean
Letourneau Bruno
Arneg Canada Inc.
Borden Ladner Gervais Llp
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