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:
Jan. 26, 1993
Filed:
Nov. 05, 1991
Anthony W Abraham, Arlington, TX (US);
Wynn's Climate Systems, Inc., Ft. Worth, TX (US);
Abstract
A refrigerant recovery apparatus has a feature for purging an air conditioning system component for cleaning. The air conditioning component will be connected into the recovery unit at a point where it will receive liquid refrigerant from the recovery unit. This liquid refrigerant comes from the storage container, with pressure being maintained by the use of the compressor. The air conditioning component connects to a purge container, which is separate from the storage container. The purge container has an outlet leading to an expansion valve for converting the purged refrigerant into a vapor. The vapor refrigerant leads back to a suction end of the recovery unit.