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. 15, 2012
Filed:
Aug. 25, 2009
Xiujie Gao, Troy, MI (US);
Alan L. Browne, Grosse Pointe, MI (US);
Nancy L. Johnson, Northville, MI (US);
Paul W. Alexander, Ypsilanti, MI (US);
Lei Hao, Troy, MI (US);
KE Dong, Troy, MI (US);
Xiujie Gao, Troy, MI (US);
Alan L. Browne, Grosse Pointe, MI (US);
Nancy L. Johnson, Northville, MI (US);
Paul W. Alexander, Ypsilanti, MI (US);
Lei Hao, Troy, MI (US);
Ke Dong, Troy, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
An active material actuator adapted for use in a circuit includes an active material member, and a piezoelectric or piezoresistive element or otherwise force sensing device, wherein the element or device is communicatively coupled to the member and operable to vary the current within the circuit when the member is caused to achieve a predetermined stress, such that, in one aspect, the element presents an overload protection mechanism.