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US 5,209,077 AGranted
Refrigerant recovery system
AssigneeSPX Corporation
InventorsKenneth W. Manz, Christopher M. Powers, Charles E. Dull
Life of this patent
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AssigneeSPX Corporation
InventorsKenneth W. Manz, Christopher M. Powers, Charles E. Dull
Estimating the term…
A refrigerant recovery system that includes a refrigerant accumulator having an inlet port for connection to the liquid port of equipment from which refrigerant is to be recovered, a vapor outlet port connected to the inlet of a refrigerant compressor, and a liquid outlet port. A valve connects the liquid outlet port of the accumulator to the inlet of a liquid refrigerant pump, which has an outlet for connection to a refrigerant storage container. A liquid refrigerant sensor is coupled to the accumulator and responsive to presence of liquid refrigerant within the accumulator for operating the valve and thereby connecting the accumulator liquid outlet port to the liquid pump. A second valve is responsive to the liquid refrigerant sensor for connecting the compressor outlet to the vapor port of refrigeration equipment under service.
A system for recovering refrigeration from refrigeration equipment comprising:
A system for recovering refrigerant from refrigeration equipment having liquid and vapor ports comprising:
Dependencies are inferred from the claim text.