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:
Jul. 22, 1980
Filed:
Nov. 13, 1978
Applicant:
Inventor:
Thomas E Watson, Staunton, VA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
62192 ; 62225 ; 62468 ; 62500 ;
Abstract
A refrigerant system with a high speed centrifugal compressor has an arrangement for promoting the continuous return of oil to gear and bearing housing 12 including a coalescing type filter 62 from which separated oil is passed to a jet pump 74, a thermostatically controlled expansion valve 50 operating at a low superheat value, and inwardly pumping shaft seals 26.