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. 15, 1985
Filed:
Sep. 26, 1983
Applicant:
Inventors:
Kiyoshi Terauchi, Isesaki, JP;
Masaharu Hiraga, Honjo, JP;
Assignee:
Sanden Corporation, Isesaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C / ;
U.S. Cl.
CPC ...
418 55 ;
Abstract
A scroll type compressor has interfitting spiral elements with thickened inner end portions which are stronger than the inner end portions of conventional spirals, and minimize the re-expansion volume of the working fluid. The inner end portions are comprised of arcuate surfaces which deviate from the involute curves of the remainder of the spiral elements.