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. 08, 2013
Filed:
Aug. 16, 2007
Alan L. Browne, Grosse Pointe, MI (US);
Nancy L. Johnson, Northville, MI (US);
Nilesh D. Mankame, Ann Arbor, MI (US);
William Barvosa-carter, Ventura, CA (US);
Norman K. Bucknor, Troy, MI (US);
Christopher P. Henry, Newbury Park, CA (US);
Geoffrey P. Mcknight, Los Angeles, CA (US);
Guillermo A. Herrera, Winnetka, CA (US);
Andrew C. Keefe, Encino, CA (US);
Alan L. Browne, Grosse Pointe, MI (US);
Nancy L. Johnson, Northville, MI (US);
Nilesh D. Mankame, Ann Arbor, MI (US);
William Barvosa-Carter, Ventura, CA (US);
Norman K. Bucknor, Troy, MI (US);
Christopher P. Henry, Newbury Park, CA (US);
Geoffrey P. McKnight, Los Angeles, CA (US);
Guillermo A. Herrera, Winnetka, CA (US);
Andrew C. Keefe, Encino, CA (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A device for selectively controlling and varying a frictional force level at an interface between two bodies, includes a first contact body having at least one surface, a second contact body having at least one surface in physical communication with the first contact body, and an active material in operative communication with a selected one or both of the first contact body and the second contact body, wherein the active material is configured to undergo a change in a property upon receipt of an activation signal wherein the change in a property is effective to change the frictional force level at the interface between the at least one surface of the first contact body and the at least one surface of the second contact body.