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:
Mar. 27, 2012
Filed:
Feb. 27, 2009
Chandra S. Namuduri, Troy, MI (US);
Yunjun LI, West Bloomfield, MI (US);
Timothy J. Talty, Beverly Hills, MI (US);
Robert B. Elliott, Waterford, MI (US);
Nancy Mcmahon, Rochester Hills, MI (US);
Chandra S. Namuduri, Troy, MI (US);
Yunjun Li, West Bloomfield, MI (US);
Timothy J. Talty, Beverly Hills, MI (US);
Robert B. Elliott, Waterford, MI (US);
Nancy McMahon, Rochester Hills, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
An energy harvesting apparatus for deployment on a vehicle having a frame includes a spring assembly coupled to the frame and configured for compressions and extensions during vehicle travel. A piezoelectric device is mounted on the spring assembly for generating electrical energy in response to the strain imposed thereon. A rectifier is coupled to the piezoelectric device for converting AC electrical energy to DC.