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:
Jul. 20, 2010
Filed:
Nov. 22, 2006
Applicant:
Ritsuo Toya, Fukuroi, JP;
Inventor:
Ritsuo Toya, Fukuroi, JP;
Assignee:
NSK-Warner K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 45/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lockup clutch for a torque converter is provided with a friction lining. The friction lining is divided into a radially-outer-side friction lining and a radially-inner-side friction lining. μ-ν characteristics of the radially-outer-side friction lining have a positive gradient to inhibit occurrence of a shudder by a stick-slip which takes place. The radially-inner-side friction lining is equipped with a large coefficient of static friction to provide large torque capacity during a clutch engagement. The radially-outer-side friction lining is bonded on a side of a piston in said lockup clutch.