Defrost control system and display panel

Details Defrost control system and display panel Defrost control system and display panel

1981-04-09

1983-10-25

Makay, Albert J.

Refrigeration

With indicator or tester

Operatively correlated with automatic control

62127, 62155, 62234, F25B 4900, F25D 2106

Patent

active

044111398

ABSTRACT:
A defrost control system is provided for initiating one or more (defrost) timing cycles each at a preselected different time and for terminating the cycles at the end of their respective predetermined (defrost) periods. The unit generally includes a solid-state, microprocessor based, programmable twenty-four hour timer, and a display panel having an electrooptical digital time display and two sets of defrost status/program indicators. The two sets of defrost indicators are separately or concurrently activated to visually present a display indicative of a plurality of program and operating status events, for example, the occurrence of an automatic or manual defrost initiation.

REFERENCES:
patent: 4071745 (1978-01-01), Hall
patent: 4151723 (1979-05-01), Gardner
patent: 4204196 (1980-05-01), Sveda
patent: 4279012 (1981-07-01), Beckedorff et al.
patent: 4284126 (1981-08-01), Dawson
patent: 4298163 (1981-11-01), Richardson et al.
patent: 4319319 (1982-03-01), Wygant

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