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. 14, 2001
Filed:
Mar. 09, 2000
Mamoru Ohkubo, Neyagawa, JP;
Exedy Corporation, Osaka, JP;
Abstract
A lockup device,of a torque converter,includes a damper mechanism,. The damper mechanism,includes a drive plate,a driven plate,coil springs,and a ring,The coil springs,transmit a torque between the drive plates,and driven plate,The coil springs,are aligned in the rotational direction of the torque converter,and extend in the rotating direction. The ring,allows movement of the coil springs,in rotational directions, while preventing movements in other directions. The ring,is supported by one of the drive and driven plates,and,, and extends through the coil springs,The ring,allows an increase in coil diameters of the coil springs,that are used in the lockup device,of the torque converter