F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
341/28
F25B 49/00 (2006.01) F25D 17/06 (2006.01) F25D 29/00 (2006.01) G07F 9/10 (2006.01)
Patent
CA 1169139
ABSTRACT OF THE DISCLOSURE The present invention relates to an energy conservation system for chilled-product vending machines, and more specifically, a control circuit for a convection type refrigeration system for a vending machine which dispenses chilled products such as beverage cans or bottles. The specification discloses a refrigeration system including a refrigeration compressor, a temperature sensor for detect- ing the temperature within said vending machine and turning said compressor ON and OFF to define a compressor cycle in response to the detection of predetermined temperature limits, an evaporator coil and evaporator fan means for blowing air across said evaporator coil and circulating said air throughout said vending machine. In this specification there is disclosed a means for cycling said evaporator fan ON simultaneously with said compressor for a time period at least as long as said compressor cycle; and a means for cycling said evaporator fan OFF a predetermined period of time after said compressor is turned OFF, said period of time being long enough to permit the temperature of said evaporator coil to temperature stabilize above the freezing temperature of water. The system may further comprise a cycle timer for intermittently cycling said evaporator fans ON and OFF for predetermined periods between said compressor cycles to thereby maintain an even distribution of chilled air within said machine and minimize temperature fluctuations of the chilled products.
382717
King Eddie W.
Morgan Annis R. Jr.
Coca-Cola Company (the)
Gowling Lafleur Henderson Llp
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