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:
Mar. 21, 2000
Filed:
Aug. 31, 1998
Dwayne Paul Joppeck, Saline, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A torque transmitting device has a plurality of friction discs alternately splined to a housing and a hub. A fluid operated piston is slidably disposed in the housing and is fluid actuated to enforce frictional engagement between the friction discs and establish a torque transmitting interface between the housing and the hub. A one-way device is disposed in the housing at a location axially spaced from the piston. The one-way device has one member splined to the housing and another member splined to the hub. A plurality of actuating elements are disposed between the one-way members to enforce axial separation thereof upon a speed differential between the one-way members in one direction. The axial separation causes engagement of the friction discs to halt the speed differential and provide a one-way torque transmitting apparatus independent of the piston.