Patent ID: 6561856
Filing Date: 2003-05-13
Classification: B63H,Y02T

Abstract:
A method of wave-powered ship propulsion by transforming a wave induced pitching motion of a ship into an amplified oscillating motion of a rocker propulsor arm, the method comprising the steps of:providing a rear platform that is rotatably affixed aft of ship hull; providing a gyroscope to stabilize the rear platform against pitching motion while the ship is pitching; rotatably supporting a propulsor arm at one end from the gyroscopically stabilized platform in a depending relationship for a rotation about first horizontal axis, and further rotatably attaching the propulsor arm to the ship hull for a rotation about a second horizontal axis; wherein a pitching motion of the ship produces a relative movement between the first axis and the second axis, which causes a leveraged rotation of the propulsor arm about the second axis to produce an amplified oscillating motion of the propulsor arm in a vertical plane to provide propulsion to the ship.