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:
Nov. 04, 2008
Filed:
Jul. 13, 2006
Tian-bing Xu, Hampton, VA (US);
Xiaoning Jiang, State College, PA (US);
Ji Su, Yorktown, VA (US);
Paul W. Rehrig, Marlborough, PA (US);
Wesley S. Hackenberger, State College, PA (US);
Tian-Bing Xu, Hampton, VA (US);
Xiaoning Jiang, State College, PA (US);
Ji Su, Yorktown, VA (US);
Paul W. Rehrig, Marlborough, PA (US);
Wesley S. Hackenberger, State College, PA (US);
National Institute of Aerospace Associates, Hampton, VA (US);
The United States of America as represented by the Administrator of NASA, Washington, DC (US);
Abstract
A hybrid piezoelectric energy harvesting transducer system includes: (a) first and second symmetric, pre-curved piezoelectric elements mounted separately on a frame so that their concave major surfaces are positioned opposite to each other; and (b) a linear piezoelectric element mounted separately on the frame and positioned between the pre-curved piezoelectric elements. The pre-curved piezoelectric elements and the linear piezoelectric element are spaced from one another and communicate with energy harvesting circuitry having contact points on the frame. The hybrid piezoelectric energy harvesting transducer system has a higher electromechanical energy conversion efficiency than any known piezoelectric transducer.