Patent ID: 6476511
Filing Date: 2002-11-05
Classification: F03B,F05B,Y02E

Abstract:
Apparatus for extracting power from waves, comprising a plurality of buoyant body members connected together to form an articulated structure, each pair of adjacent body members being connected to each other by a coupling member in such a way as to permit a relative rotational movement of said body members, whereby each of said coupling members comprises an element adapted to extract power from the relative rotational movement of said body members, characterised in that the apparatus further comprises:means to apply a roll bias angle (&psgr;) to the axis of relative rotation at each coupling member away from the horizontal axis and/or vertical axis; and variable constraint means provided at each of said coupling members adapted to apply periodically varying constraint to said relative rotation of each pair of adjacent body members in response to the prevailing sea-state.