The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 23, 1993
Filed:
Feb. 19, 1991
Applicant:
Inventor:
Russell Paxton, Azle, TX (US);
Assignee:
Standard Motor Products, Inc., Grapevine, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
62 77 ; 62 85 ; 62292 ; 62475 ;
Abstract
A refrigerant recovery and purification system is provided. A one-pass system removes refrigerant, filters and purifies it and condenses and stores the refrigerant in its liquid state for reuse. A collection tank is provided which separates the non-condensible gases, thereby eliminating pressure buildup in the storage tank. The non-condensible gases are vented back to the system to selectively provide positive pressure for vacuum relief. The system also includes an oil separator for refrigerant which has passed through the compressor with a feedback line to return the oil to the compressor.