Automatic defrost controller including air damper cleaning

Details Automatic defrost controller including air damper cleaning Automatic defrost controller including air damper cleaning

2007-02-13

2007-02-13

Ali, Mohammad M. (Department: 3744)

Refrigeration

Automatic control

Time or program actuator

Reexamination Certificate

active

11235755

ABSTRACT:
A damper cleaning apparatus for a two compartment refrigerator having a damper for controlling airflow between compartments. The damper cleaning apparatus includes a damper drive mechanism for opening and closing the damper. A controller for controlling the damper drive mechanism repeats a cleaning operation at a set interval. The cleaning operation includes plural repetitions of at least partially opening the damper and then at least partially closing the damper. Optionally, the controller waits for the defrosting apparatus to be turned off and then subsequently performs the cleaning operation.

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