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:
Nov. 12, 2013
Filed:
Dec. 23, 2011
Michael J. Grimmer, Troy, MI (US);
Michael J. Grimmer, Troy, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A torsional damper assembly for transmitting torque between a prime mover of a powertrain and an input of a transmission is provided. The torsional damper assembly includes an input mass, an output mass, a damping element, a bypass clutch, and a bypass clutch release lever. The damping element is interposed between the input mass and the output mass, and it is operable to translate torque between the masses and to dampen oscillation generated by the prime mover. The bypass clutch is configured to couple the input and output masses together for common rotation when engaged. The bypass clutch release lever is pivotally rotatable with respect to the output mass, and it includes a biasing portion and a weighted end. When rotated, the biasing portion is operable to bias the bypass clutch away from the input mass to disengage the bypass clutch.