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:
Oct. 24, 2000
Filed:
Mar. 19, 1999
Applicant:
Inventors:
William C Brown, Bryan, OH (US);
Walter D Murray, Pioneer, OH (US);
Gary P Murray, Montpelier, OH (US);
Assignee:
SPX Corporation, Muskegon, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
62195 ; 62 77 ; 62149 ; 62126 ;
Abstract
Conduits are coupled to a supply tank of refrigerant to allow the sensing of the amount of air present in the refrigerant tank and, upon the detection of air, the purging of air from the tank with a minimal loss of refrigerant. Preferably, the conduits include flow restrictors such as orifices and solenoid valves controlled by a microprocessor to sequentially sample and purge air from the refrigerant tank as required.