Patent ID: 6185945
Filing Date: 2001-02-13
Classification: B60H,F25B,G01N

Abstract:
In a refrigerant handling system including recycling/recharging apparatus for withdrawing refrigerant from a refrigeration unit, removing contaminants from the refrigerant, and recharging the refrigerant to the refrigeration unit, the improvement comprising:a coupling conduit having a first end with a first coupler for coupling to the recycling/recharging apparatus and a second end with a second coupler for coupling to an associated refrigeration unit,a remotely controllable first valve assembly connected in said coupling conduit closely adjacent to said second end for selectively controlling refrigeration flow through the conduit,a sample unit coupled to the second coupler and including a second remotely controllable valve assembly coupled to the recycling/recharging apparatus for selectively permitting or preventing refrigerant flow between the sample unit and the recycling/recharging apparatus, anda controller connected to said first and second valve assemblies for controlling operation thereof.