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:
Jul. 19, 2011
Filed:
Sep. 18, 2007
Applicants:
Darren J. Weber, Indianapolis, IN (US);
Charles F. Long, Pittsboro, IN (US);
Jason L. Ellis, Clayton, IN (US);
Inventors:
Darren J. Weber, Indianapolis, IN (US);
Charles F. Long, Pittsboro, IN (US);
Jason L. Ellis, Clayton, IN (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 61/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electro-hydraulic control system is provided that utilizes a shift solenoid and shift valve to multiplex a single pressure control solenoid to control both modulation of a main pressure regulator valve and retarder operation (fill and pressure).