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.

Date of Patent:
Oct. 17, 2017

Filed:

Mar. 23, 2012
Applicant:

David B. Stewart, Cranbury, NJ (US);

Inventor:

David B. Stewart, Cranbury, NJ (US);

Assignee:

Ocean Power Technologies, Inc., Pennington, NJ (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03B 13/14 (2006.01); F03B 13/16 (2006.01); F03B 13/20 (2006.01); F03B 11/00 (2006.01);
U.S. Cl.
CPC ...
F03B 13/16 (2013.01); F03B 11/00 (2013.01); F03B 13/20 (2013.01); F05B 2260/406 (2013.01); Y02E 10/226 (2013.01); Y02E 10/38 (2013.01);
Abstract

A wave energy converter (WEC) buoy includes at least one pitch-driven WEC ('PDWEC') device. Each PDWEC device includes two reaction masses which are placed at diametrically opposite ends of a container designed to float along the surface of a body of water and to move in response to the pitching motion of the waves. The reaction masses are interconnected so that when one reaction mass moves up, the diametrically opposed reaction mass moves down, and vice-versa. The movement of the reaction masses drives power take off (PTO) devices to produce useful energy. The reaction masses may be interconnected by any suitable linking system. One or more PDWEC device may be combined with a heave responsive device to produce a WEC buoy which can produce a power output in response to pitch or heave motion.


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