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| Number | Title | Issue Date |
| 7918625 | Support structure for sea wave energy farms A structure for supporting wave energy conversion mechanisms driven by—floats (24, 25) placed in the sea, said structure comprising: an open sided lattice framework (15); at least one leg (16) for supporting said open sided lattice framework; ... | 04/05/2011 |
| 7909536 | Wave energy converter A point absorber wave energy apparatus is provided. The point absorber wave energy apparatus includes first and second devices. The first device being a surface float. The second device a submerged body. Linkages are provided between the first and second devices so ... | 03/22/2011 |
| 7896576 | Enhanced wave power generators Systems are disclosed for generating electricity from sea waves, that include a float (12) that lies at the sea surface (14) and moves up and down with the waves. A motion resist element (30) moves horizontally with the float but resists vertica... | 03/01/2011 |
| 7878734 | Heave plate with improved characteristics Apparatus embodying the invention include a damping plate attached to the submerged end of a spar-like element floating in a body of water. The spar like element tends to move up and down in a vertical direction in response to passing waves. The damping plate has a ... | 02/01/2011 |
| 7845880 | Systems and methods for harnessing wave energy Systems and methods are disclosed for harnessing wave energy. In one embodiment, a wave energy conversion device comprises a buoyant component connected to a generator such that wave energy is transferable from the buoyant component to the generator. A restricting m... | 12/07/2010 |
| 7632041 | Wave power generator systems Systems are provided for obtaining electrical energy from sea waves using deflectable material, especially EAP (electro-active polymers) type SSM (stretchable synthetic material) that generates electricity when an electrostatic charge is applied to the polymer and i... | 12/15/2009 |
| 7607862 | Shoaling water energy conversion device A device for converting the energy of water waves or flowing water into electrical or mechanical energy. The device includes a body or collection chamber with a hydro-turbine located opposite the water entrance and, preferably, a water clear out channel flange locat... | 10/27/2009 |
| 7585131 | Wave power station A wave power plant arranged to be placed on or in the sea or a lake in order to produce energy, comprising a fixed or floating structure and at least one floating body (1) that moves vertically relative to the floating structure and is connected to the struct... | 09/08/2009 |
| 7581901 | Wave energy converter A point absorber wave energy apparatus includes first and second devices, the first device being a surface float and the second a submerged body. Linkages are provided between the two devices so that energy resulting from relative motion between the two devices can ... | 09/01/2009 |
| 7470087 | Wave-dissipating block A wave-dissipating block has a body and a turbine generator assembly. The body has an airway and an overhang. The airway is formed in the body, is substantially J-shape and has an opening communicating with a front of the body and substantially facing upward. The ov... | 12/30/2008 |
| 7470086 | Submersible tethered platform for undersea electrical power generation A submersible and remotely-operable platform system for carrying out repeated operations in a submarine position, and producing electrical energy as either a primary or secondary purpose by means of one or more energy-conversion payload devices installed thereon. Th... | 12/30/2008 |
| 7372172 | Device and method for the generation of electrical energy Arrangement for generating electrical power from a flowing medium, wherein the arrangement includes a plurality of turbine generator units. At least some of the plurality of generator units are arranged at least one of one above another and one beside another. At le... | 05/13/2008 |
| 7365445 | Apparatus for converting ocean wave energy to electrical energy A wave motion generator having a bore hole at a coastline of an ocean. The bore hole lower end communicates with the ocean underwater while the upper end is above water level, allowing wave motion within the bore hole. A float disposed within the bore hole may trave... | 04/29/2008 |
| 7352073 | Ocean wave energy converter having an improved generator and ballast control The ocean wave energy converter uniquely includes a generator with a rotating inner rotor surrounded by a counter-rotating outer rotor for generating electricity. A reciprocating drive rod drives the inner rotor on the downstroke of the drive rod and the outer rotor... | 04/01/2008 |
| 7319278 | Ocean wave generation An ocean wave generator includes a buoy for floating on the surface of the ocean. A generator is mounted to the buoy. A pulley is mounted on the generator for turning the generator. An anchor cable has a first end wrapped around the pulley and an anchored second end... | 01/15/2008 |
| 7304398 | Spring activated energy transducer generating A/C electricity from natural forces-frictionless magnetic plate A spring activated energy transducer is provided. The energy transducer of the current invention generates alternating current (A/C) electricity from abundant external natural forces. The energy transducer is comprised of an upper part and a lower part. The upper pa... | 12/04/2007 |
| 7304399 | Wave power assembly A wave power assembly having a hull and a linear electric generator. The rotor is connected to the hull by connection means so that lifting force is transferred from the hull to the rotor. Spring means exert a force on the rotor that is counter-directed the lifting ... | 12/04/2007 |
| 7279803 | Ocean current power generator An apparatus and method for generating electricity from the movement of seawater in ocean currents. An impeller is set within a stationary frame. The impeller rotates around a non-moving shaft. There are four sets of electromagnetic coils, two of which are stationar... | 10/09/2007 |
| 7275891 | Apparatus for controlling underwater based equipment The apparatus may include a space frame on which is mounted at least one hydrofoil for generating positive or negative lift. The frame is attachable to underwater equipment such as a turbine. The hydrofoils are adapted to produce negative lift when a flow of liquid ... | 10/02/2007 |
| 7144197 | Apparatus and method for controlling wave characteristics The present invention relates to a variable floor (1) for a body of water, the variable floor (1) including a base portion (2) for location on or within a fixed floor (106) of the body of water and means to adjust the slope of the upper s... | 12/05/2006 |
| 7105940 | Mobile renewable energy generator A method and apparatus for a portable renewable energy generator includes; a movable platform adapted for one of towing and transport to a remote area, a redundant renewable energy source generator including a wind energy extraction device configured for transport o... | 09/12/2006 |
| 7033111 | Hydraulic power generating system A hydraulic power generating system designed to minimize equipment costs by simplifying the configuration thereof, to maximize efficiency of power generation by reducing loss in hydraulic power, and to allow economical and convenient maintenance of the system. The s... | 04/25/2006 |
| 6967413 | Tidal energy system The Tidal Energy System is a structure capable of extracting energy from the potential and kinetic energies of the tides, as well as from ocean waves and offshore wind. Its components operate synergistically in multiple capacities to extract energy from these source... | 11/22/2005 |
| 6956299 | System for generating energy from the waves of the sea Includes at least one floating body (1), and is characterised in that includes a device (2) fitted inside said body (1) for transforming the movement of the floating body (1) into pneumatic or hydraulic energy and means for transmitting t... | 10/18/2005 |
| 6956300 | Gimbal-mounted hydroelectric turbine A power plant extracts energy from a free flowing motive fluid by means of a turbine mounted on a gimbal. The shroud element of the fluid intake has external rudders, in conjunction with the gimbal mounting, enabling the enclosed turbine to instantaneously respond t... | 10/18/2005 |
| 6933624 | Hydropower generation apparatus and method Apparatus and methods for generating power utilizing the flow of water from an upper water body to a lower water body in order to generate an upward buoyant force on at least one buoyant object located in a chamber. In preferred embodiments, water is recycled betwee... | 08/23/2005 |
| 6863806 | Barge-mounted tidal-powered desalinization system A tidal-powered desalinization system is mounted on a barge that oscillates about fixed pier structures, generating a two-way pumping action. The two-way pumping action is changed to a single direction flow of seawater. The sea water is directed into an on-board des... | 03/08/2005 |
| 6781253 | Converting ocean energy into electrical energy using bourdon tubes and cartesian divers A system for converting the kinetic energy of the ocean into electrical energy. There is presented a water-filled pipe extending from the shore into the ocean. The sunken end opens into a water-filled piston sleeve standing upright on the ocean floor. The sleeve con... | 08/24/2004 |
| 6695536 | Floating platform to obtain electric power from sea waves A floating platform is fixed to the sea bottom, provided with a lathe in that a cable is rolled up by a recoverable spring, they allow to transform the kinetic energy of the waves in electricity by connecting the axis of the lathe to an electricity genera... | 02/24/2004 |
| 6568878 | Wave energy dissipater and beach renourishing system A system converts energy of waves into rotational energy, friction, heat, hydrodynamic lift, and drag to extract energy from waves to reduce their amplitudes and increase their periods to reduce destructive effects on shorelines. This also allows sand to ... | 05/27/2003 |
| 6450732 | Caisson for absorbing wave energy A caisson (1) provided with at least one air pocket (5), and at least one vertical duct or conduit (2) extending transversally along the whole portion of the caisson (1) where the respective air pocket (5) is present. The lower portion of the caisson (1) ... | 09/17/2002 |
| 6443653 | Modular floating breakwater for the transformation of wave energy A floating modular system for the protection of harbours and the transformation of energy, consisting of: a plurality of modules (1) made of metal and/or reinforced marine concrete box-structure, comprising internal air spaces (2) for determining the floa... | 09/03/2002 |
| 5575587 | Tide-operated driving system A tide-operated driving system including a variable air chamber having a broad bottom opening put under the water of the sea and a small top opening disposed above the seaside, and a motor having a center shaft and a plurality of centrifugal type vanes sp... | 11/19/1996 |
| 5507943 | Water-wave energy converter systems What is created is a multichambered honeycomb structure; made of laminates and composite materials to cut cost and provide strength and durability; disposed floating on open waters in an elongated form to serve as sea wall to break up the surfs to create ... | 04/16/1996 |
| 5499889 | Wave power generator A wave motion power generator comprising a frame, including ballast members and buoyancy members, first cross members extending between opposed buoyancy members, a plurality of pairs of cylinders, a hollow piston rod associated with each cylinder, support... | 03/19/1996 |
| 5222833 | Shutter for hydro-pneumatic current flow harnessing system A gravitational window shutter in a water gate for a system for harnessing power from current flow or tidal movement in a of water is disclosed. The gate is formed with a door for closing the port through which the water may flow. The door has a window in... | 06/29/1993 |
| 5217324 | Dynamic breakwater and pumping system A dynamic breakwater system pumps water from a body of water in response to wave action or underwater currents. A submerged stationary base is fixed to a solid subsurface. A breakwater protrudes upwardly through the surface of the water. Wheels support th... | 06/08/1993 |
| 5184915 | Apparatus for lifting up water using the ocean tide energy to do so An apparatus is disclosed, for lifting up water to a predetermined level where it can be useful, using the inexhaustible and non-polluting source of energy of the ocean tides to do so. The apparatus comprises a water chamber positioned to be filled with w... | 02/09/1993 |
| 5074710 | Water gate array for current flow or tidal movement pneumatic harnessing system The invention, which provides a system for harnessing power from current flow or tidal movement in a body of water, comprises first and second hydro-pneumatic chambers each having ingress and egress below the water surface near the river or ocean floor an... | 12/24/1991 |
| 4984935 | Floating enclosed offshore support structure A floating structure to support maritime operations is constituted by a metallic platform, in the shape of an internally open square (10) floating in the ocean being moored to the bottom of the ocean by a cable system (C1, C2, C... | 01/15/1991 |
