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:
Sep. 25, 2001
Filed:
Jun. 08, 1999
Tamio Nagano, Hirakata, JP;
Saburo Nakanishi, Amagasaki, JP;
Yoshitaka Kitamura, Hirakata, JP;
Hideyuki Imanaka, Moriguchi, JP;
Hiroshi Uehara, Hirakata, JP;
Exedy Corporation, Osaka, JP;
Abstract
A damper disc assembly having multiple embodiments. In one embodiment, spring seats are arranged at opposite ends of coil springs disposed between a power input rotary member and a power output rotary member. Each spring seat has a contacting surface with mutually perpendicular slanting portions. In another embodiment, a modified spring seat determines a phase or orientation of the power input rotary member with respect to the power output rotary member. In a third embodiment, a friction element is formed of resin and includes a friction adjusting element. The body portion of the friction element is made of resin and includes a friction generating surface that contacts a side surface of the sub-plate. The fiction adjusting element is provided in the friction generating surface of the body portion by molding and modifies the friction coefficient thereof. In a fourth embodiment, the friction element has a coating applied to a friction surface which modifies the friction coefficient.