Frost detector

Details Frost detector Frost detector

1976-12-16

1978-08-29

Wayner, William E.

Refrigeration

Automatic control

By accumulation on freezing surface, e.g., ice

62151, 340580, F25D 2102

Patent

active

041094816

ABSTRACT:
In a frost detector mounted proximate cooling fins of refrigeration apparatus, an emitter directs pulses of infrared radiation in the direction of the fins. When there is frost buildup on the fins, the frost reflects the radiation back towards a detector, the detector and emitter being mounted at a slight angle to each other.

REFERENCES:
patent: 3188828 (1965-06-01), Wayne
patent: 3961495 (1976-06-01), Beauvent et al.
patent: 4015127 (1977-03-01), Sharkins
patent: 4017194 (1977-04-01), Conroy et al.
patent: 4035644 (1977-07-01), Ciemochowski

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