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:
Apr. 30, 1985
Filed:
May. 23, 1983
Applicant:
Inventors:
Robert H Proctor, Cockeysville, MD (US);
Arthur G Hobbs, Jr, Hampstead, MD (US);
Assignee:
Murray Corporation, Cockeysville, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
62149 ; 62292 ; 62126 ;
Abstract
A mobile air-conditioner charging station having a reluctance-type weighing scale on which are mounted reservoirs of both lubricant oil and refrigerant. A computer module reads the weight loss of the combined reservoirs as, first, the oil is charged into the air-conditioner and then, sequentially and automatically, the refrigerant is charged into the air-conditioner. Each charging cycle is completed when the computer module senses, by a plurality of discrete readings of the scale at timed intervals, that a pre-selected magnitude of weight loss has occurred and has been maintained.