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. 10, 2008
Filed:
Sep. 08, 2005
Applicants:
Tomoyuki Miyazaki, Kakegawa, JP;
Kiyokazu Ichikawa, Fukuroi, JP;
Yosuke Ikeda, Shimada, JP;
Inventors:
Assignee:
NSK-Warner K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 13/60 (2006.01); F16D 13/72 (2006.01);
U.S. Cl.
CPC ...
Abstract
A clutch hub provided with a side wall at an end of a cylindrical portion. The cylindrical portion is formed to have convexed and concaved portions to serve as a spline and an oil passage is formed on a tooth of the spline. An oil dam is formed by plastic deformation on the inner peripheral surface of the tooth of the spline with the oil passage formed thereon at a position separated from an open end by a predetermined distance, concaved grooves are formed on the outer peripheral surface of the spline with the oil dam formed thereon.