Refrigeration – Time or program actuator – Defrosting
Patent
1984-07-05
1986-04-15
Tanner, Harry
Refrigeration
Time or program actuator
Defrosting
200 38D, F25D 2108, H01H 708
Patent
active
045819017
ABSTRACT:
A control system provides slow and fast defrost cycles for a heat pump by providing an auxiliary manual switch to select different cams of a timing means for cycle operation. Selective ones of the cam switches are connected in parallel to permit two different defrost time cycles utilizing four cams rotating at the same speed.
REFERENCES:
patent: 3333121 (1967-07-01), Ross
patent: 3610848 (1971-10-01), Rosenberg
patent: 4123915 (1978-11-01), Stoor
Adams George W.
Sheeks Jimmy L.
Emhart Industries Inc.
Meyer Robert F.
Tanner Harry
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