Environmental protection refrigeration disposal and charging sys

Details Environmental protection refrigeration disposal and charging sys Environmental protection refrigeration disposal and charging sys

1979-01-19

1981-04-14

Tapolcai, Jr., William E.

Refrigeration

Automatic control

Withdrawing or adding refrigerant from or to normally closed...

62292, 62 5, 417 37, F25B 4500

Patent

active

042611784

ABSTRACT:
The invention pertains to an environmental protection system and method for withdrawing and charging refrigerants, particularly fluorocarbon refrigerants, with respect to refrigeration systems as used for refrigeration, dehumidifying, air conditioning and the like without contamination of the atmosphere. Refrigerant is evacuated from a refrigeration system through a closed circuit into a closed disposal or storage container, and in an embodiment of the invention direct evacuation pumping of the refrigerant may be proceeded by drawing the majority of the refrigerant from the refrigeration system by means of a preliminary vacuum tank connected in series with a refrigerant disposal container. Additionally, the invention contemplates combining a refrigerant charging circuit with the refrigerant evacuation circuit in order to provide complete refrigeration system servicing without the release of refrigerant to the atmosphere.

REFERENCES:
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patent: 3873289 (1975-03-01), White
patent: 3922111 (1975-11-01), Peters
patent: 4132242 (1979-01-01), Carroll, Jr.

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