Wave energy converter (WEC) device and system

Details Wave energy converter (WEC) device and system Wave energy converter (WEC) device and system

2006-11-28

2006-11-28

Nguyen, Hoang (Department: 3748)

Power plants

Motor having a buoyant working member

With means to vary buoyancy of working member

C060S502000

Reexamination Certificate

active

07140180

ABSTRACT:
A wave energy converter system comprises two floats; a first being generally flat and heaving up and down in phase with passing surface waves on a body of water, and the second being elongated and heaving up and down out of phase with the passing waves. Preferably, the first float is annular with a central vertical opening therethrough, and the elongated float, with a weighted bottom end, extends vertically through the central opening of the first float. The two floats thus move out of phase with one another, thus providing a relatively large relative motion between the two floats giving rise to highly efficient energy conversion. Each float serves as a “ground” for the other; thus avoiding the need for anchoring the floats to the floor of the body of water.

REFERENCES:
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patent: 3991837 (1976-11-01), Crickmer
patent: 4914915 (1990-04-01), Linderfelt
patent: 5347186 (1994-09-01), Konotchick
patent: 5842838 (1998-12-01), Berg
patent: 6392314 (2002-05-01), Dick
patent: 6857266 (2005-02-01), Dick
patent: 6864592 (2005-03-01), Kelly

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