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:
Jun. 28, 1988
Filed:
Jul. 25, 1985
Applicant:
Inventors:
Masaharu Hiraga, Honjo, JP;
Tamotsu Daikohara, Shin, JP;
Assignee:
Sanden Corporation, Gunma, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C / ; F04C / ;
U.S. Cl.
CPC ...
418 55 ; 418142 ; 277204 ;
Abstract
A scroll type fluid compressor including a housing, a pair of scroll elements each comprising an end plate and a spiral wrap means projecting from one surface of the end plate. Both wrap means are interfitted to make a plurality of line contacts and are formed with a groove on the end surface of each wrap means which receives a seal element. Each groove is formed with its center line inward of the center line of its respective spiral wrap. This construction prevents the walls of the groove from prematurely deteriorating and causing attendant destruction of the scroll elements.