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. 28, 1997
Filed:
Dec. 11, 1995
Applicant:
Inventors:
Paul J Bushnell, Syracuse, NY (US);
Donald Yannascoli, Manlius, NY (US);
Assignee:
Carrier Corporation, Syracuse, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
4174103 ; 418151 ;
Abstract
The end ring(s) and counterweight(s) attached to the rotor of a hermetic compressor are located within a cover which isolates them from the interior of the compressor. The cover may be fixed or it may rotate as a unit with the rotor, end ring and counterweight. In each embodiment the asymmetric counterweight is prevented from acting as a fan with respect to the interior of the shell and is thereby prevented from producing a pressure gradient tending to act on the sump and cause a higher oil circulation rate to the refrigeration system.