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:
Dec. 12, 2000
Filed:
Feb. 25, 1999
Applicant:
Inventors:
Shinichi Ohtake, Ashikaga, JP;
Jiro Iizuka, Takasaki, JP;
Assignee:
Sanden Corporation, Gunma, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03C / ;
U.S. Cl.
CPC ...
418 553 ; 418 555 ; 418 57 ; 464103 ;
Abstract
In a scroll-type fluid machine in which a movable scroll member (3) is placed between a front housing (1) and a fixed scroll member (4), the movable scroll member is elastically urged towards the fixed scroll member by an urging member. The movable and the fixed scroll members are engaged with each other to form a compression space (6) therebetween. It is preferable that the urging member is composed by at least one of races (24, 25) of a ball coupling (5) which is placed between the stationary and the movable scroll members and is for preventing the movable scroll member from being rotated relative to the fixed scroll member.