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. 16, 2009
Filed:
Dec. 05, 2005
Applicants:
Tamotsu Fujii, Fukuroi, JP;
Kenji Maruo, Fukuroi, JP;
Hideaki Takabayashi, Fukuroi, JP;
Inventors:
Assignee:
NSK-Warner K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 45/02 (2006.01); F16D 13/60 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a lock-up clutch mechanism for a torque converter, comprising a lock-up clutch to which a friction material having a friction surface is secured and a front cover having an engagement surface with which the friction surface is engaged when the friction surface is urged in an axial direction and in which the friction surface of the friction material has a configuration including a protruded area protruding in the axial direction.