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:
Aug. 29, 2000
Filed:
Jun. 07, 1999
Applicant:
Inventors:
Masayuki Takagi, Shizuoka-ken, JP;
Tadashi Watanabe, Shizuoka-ken, JP;
Hiroshi Yabe, Shizuoka-ken, JP;
Assignee:
NSK-Warner K.K., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
192-329 ; 192212 ;
Abstract
A lockup piston is provided with a damper. This lockup piston is useful in a torque converter having a lockup clutch. The lockup piston is composed of a disk-shaped core plate, which has an outer peripheral flange and a friction member fixedly secured on a side of the core plate, and of a retainer plate fixedly secured on an opposite side of the core plate and carrying a spring thereon. The disk-shaped core plate is provided thereon with convexities along opposite radial edges of the retainer plate, respectively.