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, 2002
Filed:
Jun. 07, 2000
Applicant:
Inventors:
Yuko Kamamura, Saitama, JP;
Yasutami Matsumoto, Kanagawa, JP;
Assignee:
NSK Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 1/538 ;
U.S. Cl.
CPC ...
F16H 1/538 ;
Abstract
The inner surface of the input side disk is composed of a near-inside-diameter portion, namely, a first arc surface and a near-outside-diameter portion, namely, a second arc surface in such a manner that the first and second arc surfaces and are allowed to continue with each other smoothly. The first arc surface is formed as a single arc whose radius of curvature is R . Also, the second arc surface is recessed in the axial direction of the input side disk further than the extension of the single arc, and the second arc surface is formed so as to have a spiral curve.