Patent ID: 7768143

Claim:
Apparatus for use in contact with a body of water, said apparatus comprising a first member provided to be located at or close to the surface of the body of water, at least a second member and at least one rotatable means provided in movable engagement therewith wherein one of the second member or rotatable means is connected with said first member to move under the influence of the same and to move with respect to the other of the second member or rotatable means to create a driving force and/or create power characterised in that the second member includes first and second racks, rotatable means provided to move along and engage with each of said racks, said rotatable means connected to first and second clutches, said first and second clutches arranged such that movement along the racks in a first direction causes said first clutch to drive a first output shaft connected to a first power generation means and movement along the racks in the opposing direction causes said second clutch to drive said second output shaft connected to said second power generation means wherein movement in the first direction is as a result of an upward movement caused by a wave or swell of the body of water and movement in an opposing direction is a downward movement as a result of the wave or swell of the body of water and the apparatus is provided with means to control the extent of movement between the first and second members which is created by the body of water.