Abstract: An anchoring enclosure embodying the invention includes a chamber whose buoyancy can be controlled by pumping a gas (e.g., air) or a liquid (e.g., sea water) into the chamber. The anchoring enclosure includes a bottom extension for embedding the anchoring enclosure into the seabed and an anti-scouring skirt extending about the perimeter of the lower portion of the structure and outward from the anchoring enclosure for resting along the seabed and preventing water movement from disturbing the embedded bottom extension. The anchoring enclosure may be rendered sufficiently buoyant to be easily towed to a selected site of a body of water without the need for large and expensive equipment and to then be rendered less buoyant so as to sink, in a controlled manner, to the seabed.

Abstract: A known type of surface wave energy converter comprises a submerged elongated tube supported by, but being vertically movable relative to, an anchored float. The tube vertically reciprocates in response to overpassing surface waves and drives a transducer for generating useful energy. Improvements include: a motion translator between the tube and the transducer for reducing the stroke length of the transducer and magnifying the force transmitted to the transducer; an energy buffer system for limiting the travel of the tube in response to excessively large surface waves; a gravity anchor for the system for absorbing energy from even greater amplitude waves; means for adjusting buoyancy in response to changing conditions, and pressure relief valves for automatically reducing excessive tube driving pressures caused by excessively large overpassing waves. Energy present in tilting movements of the apparatus are optionally captured in horizontally disposed transducers.

Abstract: A known type of surface wave energy converter comprises a submerged elongated tube supported by, but being vertically movable relative to, an anchored float. The tube vertically reciprocates in response to overpassing surface waves and drives a transducer for generating useful energy. Improvements include: a motion translator between the tube and the transducer for reducing the stroke length of the transducer and magnifying the force transmitted to the transducer; an energy buffer system for limiting the travel of the tube in response to excessively large surface waves; a gravity anchor for the system for absorbing energy from even greater amplitude waves; means for adjusting buoyancy in response to changing conditions, and pressure relief valves for automatically reducing excessive tube driving pressures caused by excessively large overpassing waves. Energy present in tilting movements of the apparatus are optionally captured in horizontally disposed transducers.