Refrigerator with defrost override system

Details Refrigerator with defrost override system Refrigerator with defrost override system

1990-05-04

1991-08-13

Tanner, Harry B.

Refrigeration

Time or program actuator

Defrosting

62128, 62155, 62156, 62276, F25D 2108

Patent

active

050385755

ABSTRACT:
A refrigerator having an enclosed compartment for storing food to be cooled, an evaporator including a refrigerant flowing therethrough for cooling the food in the compartment, a defrosting device, and a defrost override device. The defrosting device periodically heats the evaporator for removing the accumulated frost for controlled periods. The defrost override device automatically deactivates the defrosting device when the heating of the evaporator continues for longer than a preset time. The defrost override device may also automatically activate the refrigerant flowing through the evaporator. In this manner the refrigerator of this invention can store food without overheating during the defrosting operation.

REFERENCES:
patent: 3188828 (1965-06-01), Wayne
patent: 3890798 (1975-06-01), Fujimoto et al.
patent: 4299095 (1981-11-01), Cassarino
patent: 4344294 (1982-08-01), Gelbard
patent: 4665710 (1987-05-01), Kyzer et al.

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