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:
Sep. 12, 2006
Filed:
Sep. 28, 2004
Applicants:
Donald Klemen, Carmel, IN (US);
Arthur Hall, Iii, Cicero, IN (US);
Inventors:
Donald Klemen, Carmel, IN (US);
Arthur Hall, III, Cicero, IN (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 3/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
A multi-speed power transmission includes a countershaft portion and a planetary gearset portion. The countershaft portion is controlled by synchronizer torque-transmitting mechanisms, and the planetary gearset portion is controlled by selectively engageable friction-type torque-transmitting mechanisms. The selective operation of these torque-transmitting mechanisms permit eight forward speed ratios and three reverse speed ratios.