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. 12, 2010
Filed:
Feb. 17, 2005
Michael D. Foster, Carmel, IN (US);
Joel E. Mowatt, Zionsville, IN (US);
Gregory W. Kempf, Avon, IN (US);
James A. Raszkowski, Indianapolis, IN (US);
Michael D. Foster, Carmel, IN (US);
Joel E. Mowatt, Zionsville, IN (US);
Gregory W. Kempf, Avon, IN (US);
James A. Raszkowski, Indianapolis, IN (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A transmission includes first and second clutch members rotatable about the same axis. An axial groove is formed in one of the members to distribute lubricating fluid to the other member. Preferably, clutch plates with radial grooves extend between the clutch members. Fluid flows from the axial groove through the radial groove and across faces of the clutch plates to separate the plates during disengagement in order to minimize spin losses.