Patent ID: 6779350
Filing Date: 2004-08-24
Classification: F04B,F25B,G01L

Abstract:
A refrigerant recovery system comprising:a) a refrigeration system having refrigerant in a liquid phase and a vapor phase; b) a discriminator in communication with said refrigeration system, said discriminator comprising an internal chamber and a ball positioned in said internal chamber, said ball being constructed and arranged for buoyancy with respect to said liquid refrigerant to at least partially block said internal chamber upon exposure to said liquid refrigerant; c) a compressor having a cylinder head in communication with said discriminator, said compressor being constructed and arranged to withdraw said refrigerant from said refrigeration system through said discriminator; and d) a recovery device in communication with said cylinder head, said recovery device being constructed and arranged to hold said refrigerant as withdrawn from said refrigeration system as exiting said compressor.