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:
Oct. 01, 2013
Filed:
Jan. 05, 2011
Gary L. Jones, Farmington Hills, MI (US);
Farzad Samie, Franklin, MI (US);
Andrew L. Bartos, Clarkston, MI (US);
Gary L. Jones, Farmington Hills, MI (US);
Farzad Samie, Franklin, MI (US);
Andrew L. Bartos, Clarkston, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A torque transfer apparatus for a transmission includes a rotatable friction clutch pack including a first friction plate that is contiguous to a second friction plate, with the first friction plate coupled to a first transmission element and the second friction plate coupled to a second transmission element. A Belleville spring device is configured to urge the first friction plate to engage the second friction plate to effect torque transfer therebetween when a hydraulically-activated piston is deactivated. The hydraulically-activated piston is configured to urge the second periphery of the Belleville spring device away from mechanical contact of the first friction plate when the hydraulically-activated piston is activated.