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. 15, 1991
Filed:
Jun. 20, 1990
Applicant:
Inventors:
Gordon L Mount, W. Monroe, NY (US);
James N Cuny, Manlius, NY (US);
Assignee:
Carrier Corporation, Syracuse, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
62 85 ; 62475 ;
Abstract
In order to enhance the efficiency of removing refrigerant from the mixture of non-condensable gases in a purge recovery system, a carbon filter is placed in the flow of mixed gases from the purge chamber such that any remaining refrigerant can be absorbed by the filter and not be vented to the atmosphere with the non-condensable gases. The filter is periodically reactivated by the operation of a vacuum pump to remove the refrigerant from the carbon filter and return it to the system refrigeration circuit. The reactivation process is initiated and controlled by way of a pressure switch and a timer.