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. 15, 1989
Filed:
Aug. 08, 1988
William H Roth, Centerville, OH (US);
Dennis C Dull, Arcanam, OH (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A clutch damper assembly has a friction lag device which is energized in only one direction of torque variance. During the occurrence of torque transients, a torque increase in the forward direction is resisted by the springs in the damper, while a torque decrease is absorbed by a friction lag device. The friction lag device is comprised of a wedge-shaped pads which are disposed in pockets on one portion of the clutch damper. The pads frictionally engage another portion of the clutch damper which is rotatable relative to the portion having the pockets. Relative motion in one direction releases the pads from frictional engagement while relative motion in the opposite direction urges frictional engagement.