Method and do-it-yourself kit for evacuating an air conditioning

Details Method and do-it-yourself kit for evacuating an air conditioning Method and do-it-yourself kit for evacuating an air conditioning

1982-09-30

1984-07-10

King, Lloyd L.

Refrigeration

Processes

Assembling, charging, or repairing of refrigeration producer

62149, 62292, F25B 4500

Patent

active

044584970

ABSTRACT:
A method of evacuating an air conditioner utilizes the vacuum from the air/fuel manifold of a gasoline internal combustion engine. A do-it-yourself kit for so evacuating an air conditioner includes a hose so constructed as to allow one end to fit the Schrader valve on the discharge side of the air conditioner and the other end to fit a variety of sizes of tube members which extend from the air/fuel intake manifold, for example, the tube member which is connected to the positive crankcase ventilation (PCV) valve. The hose includes a one way valve which prevents flow into the compressor of the unit but permits flow out of the compressor.

REFERENCES:
patent: 3237420 (1966-03-01), Mulholland
patent: 3916641 (1975-11-01), Mullins
patent: 3935713 (1976-02-01), Olson
patent: 3996765 (1976-12-01), Mullins

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