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. 02, 1998
Filed:
Apr. 04, 1997
Applicant:
Inventors:
Assignee:
NTN Corporation, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16C / ; F01C / ; F16H / ;
U.S. Cl.
CPC ...
384609 ; 74 86 ; 418 553 ;
Abstract
The inner circumference 4a2 of the bearing ring 4a is square-shaped, and the outer circumference 4a3 thereof is circular. The shoulder 1a1 of the attaching portion 1a of the scroll member 1 is formed to be square-shaped, corresponding to the inner circumference 4a2 of the bearing ring 4a. When attaching the bearing ring 4a to the attaching portion 1a, the square-shaped inner circumference 4a2 of the bearing ring 4a is fitted to the square-shaped shoulder 1a1 of the attaching portion 1a. Thus, by fitting the inner circumference 4a2 of the bearing ring 4a to the shoulder 1a1 of the attaching portion 1a, the bearing ring 4a is prevented from rotating with respect to the swivel scroll member 1.