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:
Jun. 02, 2015
Filed:
Mar. 14, 2013
Peter Finkel, Andover, MA (US);
Ahmed H Amin, North Attleboro, MA (US);
Colin J Murphy, Newport, RI (US);
Christopher S Lynch, Sherman, CA (US);
Wen D Wong, Los Angeles, CA (US);
Peter Finkel, Andover, MA (US);
Ahmed H Amin, North Attleboro, MA (US);
Colin J Murphy, Newport, RI (US);
Christopher S Lynch, Sherman, CA (US);
Wen D Wong, Los Angeles, CA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A transducer for generating electrical energy from an expected force includes a single crystal ferroelectric material having a phase transition stress level. Mechanical stress is provided to this crystal at a level approaching the phase transition stress level, such that the expected external force will cause the phase transition. At least two electrodes are joined to the single crystal for receiving electrical energy created by the phase transition. The electrodes can be joined to conditioning and storage circuitry. In further embodiments, the phase transition is induced by an expected temperature change.