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. 23, 2008
Filed:
Aug. 10, 2004
Applicants:
Kiyotaka Hirata, Kanagawa, JP;
Hiroyuki Ikeda, Saitama, JP;
Inventors:
Kiyotaka Hirata, Kanagawa, JP;
Hiroyuki Ikeda, Saitama, JP;
Assignee:
NSK Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 15/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for manufacturing a variator component of a continuously variable transmission having a plurality of cylindrical sections and a plurality of ball spline grooves, which are provided alternately in an inner radial region of the variator component. The method includes: simultaneously finishing the cylindrical sections and the ball spline grooves through use of a hard broaching tool; and finishing functional surfaces provided on side surfaces of the variator component while taking the cylindrical sections as a machining reference.