Abstract: A submerged breakwater and barrier reef module, the reef being placed upon the seabed for protecting shorelines from the deleterious effects of wave energy including beach erosion.The module is comprised of a base, having a bottom surface and securing the module to the seabed. The base supports a seaward face for initially receiving an oncoming wave and partially dissipating the wave energy. The seaward face includes a plurality of depressions, and these depressions control scouring about the module.

Abstract: The invention is a combination submerged breakwater and barrier reef comprised of a plurality of modules. Each module is placed upon the seabed, and includes angle base with gripping toes to prevent movement. The base supports a generally crescent shaped, concave seaward face and a similar crescent shaped, concave beachward face. The beachward face includes an elongated apron to further stabilize the unit, and has a greater degree of curvature when compared to the seaward face. Each module also includes a plurality of channels which are angularly expanding towards the beachward face, and provide passages for wave portions to flow through the reef further collapsing the wave in a desired manner. The modules also include interlocking members which allow for the reef to be constructed along a continuous, axial line, or alternatively staggered to provide a non-uniform reef.

Abstract: Disclosed is a device for protecting against beach erosion. The device has a supporting platform that rests on the sea bottom, and an upwardly curved surface extending from the platform. In one embodiment the concave side faces incoming waves and the convex side faces the seabed. The upwardly curved surface deflects incoming waves upwardly, thus breaking the major portion of their force before they impact upon the beach. The platform and curved surface together form a wall like a barrier that blocks the path of sand washed from the beach, so as to trap the sand for reclaimation before it migrates so far out to seat to be lost irretrievably. The platform can have extending from it anchoring feet to anchor the device in the seabed. In another embodiment the disposition of these convex and concave surfaces is reversed.

Abstract: A hydro-dynamic device for capturing the energy of a natural stream of flowing water, and converting such current or flow of water energy into electric power for user consumption. The device has a primary tubular housing, a sealed, conical, secondary housing mounted within the tubular housing, the secondary housing containing an electrical generator. The secondary housing has a conical end portion, and is disposed within and along the exterior housing longitudinally. A rotor which drives the generator is coupled to the secondary housing, having blades disposed within the path of water entering the primary housing. The interior housing is rigidly mounted to the exterior housing by support panels that also act as guide vanes for the flow of water through the exterior housing over the conical portion of the interior housing, thus increasing water flow velocity. Rigidly affixed toward the rear of said cone are further guide vanes, at an angle approaching forty-five degrees.