Refrigeration – Processes – Assembling – charging – or repairing of refrigeration producer
Patent
1991-10-10
1993-09-28
Sollecito, John N.
Refrigeration
Processes
Assembling, charging, or repairing of refrigeration producer
62149, 62292, 62475, F25B 4500
Patent
active
052478025
ABSTRACT:
A portable refrigerant recovery unit including a compressor, a condenser and an internal receiver or container for recovering refrigerant from a refrigeration unit or other container. A level measuring device determines the level of liquid refrigerant in the internal container. A control device responds to the level measuring device and disables the compressor when the liquid refrigerant in the internal container reaches a predetermined level. Refrigerant can be temporarily stored within the internal container or passed through the internal container to an external container as refrigerant is being removed from the refrigeration unit. The compressor inlet can be directly coupled with the condenser, the compressor outlet directly coupled with the internal container and the internal container isolated from the condenser outlet to vaporize residual refrigerant and to evacuate the vaporized refrigerant from the condenser and most connective piping of the unit and to use the evacuated refrigerant vapor to expel liquid refrigerant from the internal container.
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Grandin Henry
Maniez Michel J.
Moffatt Thomas J.
National Refrigeration Products
Sollecito John N.
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