High pressure compressor cut-off switch

Refrigeration – Automatic control – Refrigeration producer

Patent

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Details

62230, 62243, 417279, F25B 100

Patent

active

039330052

ABSTRACT:
A combination high pressure relief valve and magnetic clutch disconnect switch for an air conditioning compressor which utilizes an automatically resetting valve member. The escape of pressurized refrigerant under control of the relief valve pressurizes the interior of a cap member on the end of the relief valve and thereby disconnects the ground circuit portion of the electromagnetic compressor clutch. This renders the system inoperative until the cap can be replaced and the original cause of the high pressure is determined and remedied.

REFERENCES:
patent: 1535936 (1925-04-01), Mercer
patent: 2449740 (1948-09-01), Felser
patent: 2904971 (1959-09-01), Kosfeld
patent: 3241332 (1966-03-01), Harlin
patent: 3411313 (1968-11-01), Brown
patent: 3765191 (1973-10-01), Canter

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