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U.S. Department of Energy
Office of Scientific and Technical Information

Refrigerator temperature and defrost control

Patent ·
OSTI ID:6515840

This patent describes a refrigerator having cooling means including an evaporator and a compressor for cooling a refrigerated compartment. The compressor has first and second power terminals and defrost means for heating the evaporator to remove frost. The defrost means has first and second power terminals, and a source of power coupled to first and second power conductors, an electrical control for controlling the application of power to the power terminals of each of the compressor and the defrost means. The control comprises: defrost initiation means for producing a defrost initiation signal upon a determination that the energization of the defrost means is desired.

Assignee:
Whirlpool Corporation, Benton Harbor, MI
Patent Number(s):
US 4663941
OSTI ID:
6515840
Country of Publication:
United States
Language:
English