Refrigerant recovery and recharging system

Details Refrigerant recovery and recharging system Refrigerant recovery and recharging system

1982-07-29

1984-04-10

Wayner, William E.

Refrigeration

Automatic control

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

62292, F25B 4500

Patent

active

044413300

ABSTRACT:
The invention pertains to method and apparatus for servicing refrigeration circuits wherein the refrigerant is removed from the circuit and the circuit recharged. In accord with the invention the recovered refrigerant may be reprocessed for recharging the circuit, or the recovered refrigerant may be stored and fresh refrigerant employed for circuit charging purposes. Further, the invention contemplates the removal of oil from recovered refrigerant, and the charging of a predetermined amount of lubricating oil into the recharged circuit.

REFERENCES:
patent: 2893217 (1959-07-01), Nigro
patent: 3232070 (1966-02-01), Sparano
patent: 3400552 (1968-09-01), Johnson et al.
patent: 3538961 (1970-11-01), Bruce
patent: 3695055 (1970-07-01), Bruce
patent: 3699781 (1972-10-01), Taylor
patent: 3826104 (1974-07-01), Lamb
patent: 3873289 (1975-03-01), White
patent: 3974659 (1976-08-01), Edwards
patent: 4285206 (1981-08-01), Koser

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