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:
Feb. 19, 2008
Filed:
May. 18, 2005
Henryk Sowul, Oxford, MI (US);
Michael H. Pohl, Canton, MI (US);
Henryk Sowul, Oxford, MI (US);
Michael H. Pohl, Canton, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A hydraulically-actuatable clutch and method is operable as an overdrive clutch in a transmission system having a transmission main shaft portion. The clutch is engageable between a transmission housing and a sun gear and rotor hub to provide for grounding of the sun gear and rotor hub to the transmission housing. The clutch may either be engaged or disengaged from the transmission housing. The clutch does not allow the rotor and sun gear to rotatably slip with respect to the transmission housing when the clutch is engaged to ground the rotor and sun gear to the transmission housing. When the clutch is disengaged, the rotor and sun gear may rotate with the transmission main shaft portion.