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:
May. 17, 2005
Filed:
Apr. 08, 2003
Applicants:
Seiichiro Hatase, Hanyu, JP;
Masami Tanaka, Hanyu, JP;
Inventors:
Seiichiro Hatase, Hanyu, JP;
Masami Tanaka, Hanyu, JP;
Assignee:
NSK Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H055/32 ;
U.S. Cl.
CPC ...
Abstract
An inner surfaceof a torque transmitting disc of a toroidal type continuously variable transmission can be finish-worked without also enhancing accuracy of a cylindrical surface as an outer peripheral surface of the disc. The inner surface is finish-worked with super finish while urging a working surface of a grindstone against the inner surface. In this case, roller shoes are rollingly contacted with the inner surface to prevent the disc from being radially displaced under force from the working surface.