F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
62/68
F25B 45/00 (2006.01) B09B 3/00 (2006.01)
Patent
CA 1106629
ABSTRACT OF THE DISCLOSURE The invention pertains to an environment protection system and method for withdrawing and charging refrigerants, par- ticularly 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 Or the refrigerant from the refrigeration system by means of a preliminary vacuum tank connected in series with a refrigerant disposal container. Addi- tionally, 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.
341745
Borden Ladner Gervais Llp
Robinair Manufacturing Corporation
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