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:
May. 04, 2004
Filed:
Apr. 25, 2002
Applicant:
Inventors:
Louis Green, Fountain Hills, AZ (US);
Leonid Charles Lev, West Bloomfield, MI (US);
Dexter Dean Snyder, Birmingham, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 1/501 ; F16H 5/532 ;
U.S. Cl.
CPC ...
F16H 1/501 ; F16H 5/532 ;
Abstract
A transmission device that includes a driving member and a driven member in frictional engagement with the driving member. A traction fluid is included at a contact between the driving and driven members. The traction fluid is a field responsive fluid that is capable of changing its rheological properties in response to an external field.