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.:

US 8456030 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 04, 2013

Filed:

Mar. 29, 2010
Applicant:

Wei-ming Chi, Feasterville, PA (US);

Inventor:

Wei-Ming Chi, Feasterville, PA (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03B 13/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

A wave energy converter (WEC) includes a float which moves generally in phase with the waves and whose up and down motion is guided by and along a spar having an upper portion and a lower portion. A power take off (PTO) device is coupled between the float and the spar for converting their relative motion into useful energy. In some embodiments, the PTO includes (a) a drum having an axis of rotation rotatably mounted within one of the float and spar; and (b) cabling means connected between the drum and the other one of the float and spar for causing the drum to rotate as a function of the up and down motion of the float. In other embodiments, the PTO system is formed using a pre-tensioned roller chain wound around sprocket wheels located within one of the spar and float with the opposite ends of the chain connected to the other one of the spar and float to cause rotation of the sprocket wheels in response to movement of the float relative to the spar.


Find Patent Forward Citations

Chi, Wei-Ming. (2013). Power take off apparatus for a wec (U.S. Patent No. 8456030). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8456030

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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