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:
Dec. 30, 2008
Filed:
Jul. 24, 2006
Applicant:
Dane L. Rodgers, Ii, Avon, IN (US);
Inventor:
Dane L. Rodgers, II, Avon, IN (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 37/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A transmission is provided that combines first and second countershafts with a planetary gear set, and uses first and second head gear sets to provide ratio. Each of the countershafts supports gears in no more than five co-planar, intermeshing gear sets (and in most embodiments no more than four co-planar, intermeshing gear sets), thus minimizing the overall length of the countershafts. The transmission provides at least nine forward speed ratios and a reverse speed ratio and utilizes only eight torque-transmitting mechanisms.