Abstract: A hydroelectric apparatus includes multiple propellers to be driven by a hydraulic current, a generating module and a transmission arranged between the propellors and the generating module. Thus, the rotation of the propellors is convertible into electricity. The transmission is used to change a rotational speed of the set of propellers. The propellors are able to float on water in a canal without affecting the performance of the canal. The number of the propellors is large to produce a large torque to increase the power of the hydroelectric apparatus so that the electricity can be supplied to the public. Moreover, the small size of the hydroelectric apparatus renders the hydroelectric apparatus inexpensive and environmentally friendly.

Abstract: The wave generator for a rope-controlled hydraulic cylinder in the present invention includes a Wave Energy Harvest and Conversion system (WEHCS), a rope control device and a gravity anchor. The rope control device includes two members which are controllable in relative motion, i.e., frame and an elongated member. When the frame is located above the elongated member, the top end of the frame serves as a connection point with the WEHCS, and the bottom end of the elongated member serves as a collection point with the gravity anchor; however, when the frame is located below the elongated member, the frame serves as a connection point with the gravity anchor, and the top end of the elongated member serves as, a connection point with the WEHCS. The wave generator is applicable for large waves and adapted to tidal changes, as well as effective in rope-retrieving.

Abstract: A wave energy converter comprises a power generator, characterized by an axial length along a longitudinal axis; the power generator being configured to tilt about a horizontal axis perpendicular to the longitudinal axis. The tilt results in a conversion of kinetic energy, present in a group of water waves causing the tilt, to electrical energy. The axial length is less than approximately one quarter of the average wavelength expected to be encountered in a dominant sub-group of waves within the group of waves. The power generator generates power independent of whether or not the wave energy converter is tethered to any solid object at a position that is fixed independent of water motion.

Abstract: A wave energy converter generates power from a wave-induced separation of a positively buoyant flotation module and a submerged negatively buoyant mass, using a rotating pulley to drive a power-take-off system.

Abstract: Disclosed is an energy harvesting system for ocean waves. The energy harvesting system includes each of a buoyant platform and a plurality of wave energy harvesting units. The buoyant platform is configured to float above the ocean bed. Further, each wave energy harvesting unit may be tethered between the buoyant platform and the ocean bed. Additionally, a wave energy harvesting unit may be configured to be actuated by motion of the buoyant platform. Accordingly, the wave energy harvesting unit may absorb energy from the buoyant platform's movement resulted from the ocean waves.

Abstract: Floating platform apparatus for wave power conversion, consisting of armatures with buoyant, semi-submersible segments pivotally joined to an interlinking segment for controllable, repeated transitions of the primary axis of the entire apparatus from the extended horizontal posture to the vertical posture while still permitting the armature to oscillate in two planes within a restrictive collar, the oscillations thrusting fluid pumps to drive a generator to derive electrical power from the motion. Environmental sensing causes adjustment of the length of the armature and of the variably fixed facing angle of the collar within the interlinking segment in order to harness and manage forces impinging on the system. Dynamic harmonic tuning and resonance management are achieved by varying armature length through employment of telescoping, nested elements in the armatures.

Abstract: The method of mooring buoyant equipment at the surface of a body of water in a controlled position using a single line by connecting a first line from the buoyant equipment to a first diameter drum on a subsea mooring tower, connecting the first diameter drum to a second diameter drum, connecting a second line from the second diameter drum to a weight, such that when the depth of the body of water changes the tension on the first line remains the same and the vertical distance travelled by the weight is less than the change in the depth of the body of water.

Abstract: Disclosed herein is a crosscurrent tacking portable hydrokinetic energy conversion hydrofoil useful for generating electricity in moderate velocity currents and especially useful for rapid deployment and removal from a land base, boat or dock. The device comprises a buoyant and ballasted semi-cylindrical shroud containing a turbine rotor, annular cylindrical wing, a linear expansion nozzle, an alternator with linkages to a turbine shaft, an insulated conductor cable and tether lines. Hydrofoil elements enable the device to tack into a stream and hold a stable position. A system using two tether lines, each with one end connected to the device are fed into a stream to a desired distance from a surface base and are subsequently individually tensioned and fixed to a point on the base, stabilizing the device.

Abstract: The present invention relates to the utilization of wave energy and its conversion into operating motion of an electrical energy generating system. The system for generation of electrical energy through the conversion of aquatic wave motion includes floating bodies and a constant rotation mechanism, which converts the two-way linear motion of an inflexible transmission shaft or a flexible transmission shafts into one-way rotation of an output shaft of the constant rotation mechanism. This mechanism allows utilization of wave energy in two directions caused by the rise and fall of waves. The output shaft of the constant rotation mechanism is coupled to a force multiplier that is further coupled to a generator which generates electrical energy. Constant rotation mechanism can be driven by inflexible transmission shaft pivotally coupled to the floating bodies at one end, and the other end to an input gear of the constant rotation mechanism.

Abstract: The present invention concerns a rotating apparatus related to water power, particularly related to wave power, and related to conversion of energy, for instance to generate electricity. The apparatus according to the invention may comprise one or more axially connected horizontally arranged floating or neutrally buoyant rotors that are driven by a number of fins that in turn are driven by wave waterflows and/or linear waterflows, said rotors being adapted for rotation, said rotation being non-changing and independent of the direction of the waterflows. The rotational energy is preferably converted to electricity by built-in generators. In addition, the apparatus comprises an arrangement so that the apparatus is adapted to move into a position corresponding to the direction of the waterflows.

Abstract: A wave responsive electrical generator device having a buoyant member connected to an anchor by a tether line member, the line member passing through a sheave mounted within the buoyant member and descending to a counterweight, whereby vertical motion of the buoyant member results in rotation of the sheave, which in turn operates hydraulic cylinders to deliver hydraulic fluid under pressure to an hydraulic motor, which drives an electrical generator, wherein the line member is a plurality of belts mechanically interlocking with the sheave.

Abstract: The generator comprises: at least one energy capturing float (2) which is movable in response to wave motion; a reaction member (1) to be positioned below the energy capturing float; connecting lines (4a, 4b,4c,4d) for connecting the at least one energy capturing float to the reaction member and defining a spacing (D3) between the energy capturing float and the reaction member; energy convertors (3a,3b,3c,3d) for converting relative movement between the reaction member and at least one respective energy capturing float to useful energy. The generator includes depth setting means such as adjustable lines (8a,8b) connected to auxiliary floats (7a,7b) or adjustable mooring lines (9a,9b 9c,9d) securing the reaction member to the sea bed B for setting the depth (D1) of the reaction member in the sea.

Abstract: A wave power module and each of a plurality of the power modules convert energy from high energy waves and swells into usable power on an industrial scale. These modules are connected by piping to the consumer of the mechanical energy in the form of the high pressurized working fluid. A submerged immovable platform and a submerged movable platform connected to a float by outer and inner power flexible links with variable free lengths and compressible chambers installed between the immovable and movable platforms. The variable buoyancy force of the float is converted into driving force, which acts through the movable platform on the compressible chambers to discharge a flow of the high pressurized working fluid to the consumer. The stroke of the movable platform and compressible chambers is less than the height of waves or swells.

Abstract: A wave-power device comprising a rotatable elongate part comprising axle and a buoyant structure helically coiled around the axle and extending at least part of the length thereof, the rotatable elongate part being connected to a power generator, characterised in that the buoyant structure has a cross-sectional shape having a width greater than its height.

Abstract: A float (1) suitable for use as a buoy or as a component for a wave-powered vehicle. The float (1) includes an upper member (12) whose height can be changed and/or which remained substantially vertical even when the float is in wave-bearing water. A low drag cable (2) suitable for use as a tether in a wave-powered vehicle has a streamlined cross-section and includes a tensile member (21) near the front of the cross-section, at least one non-load-bearing member (22) behind the tensile member, and a polymeric jacket (23).

Abstract: Apparatus for connecting a power cable to a marine vessel which is subject to pitch, heave, roll and yaw motion includes a ball and socket device for decreasing the twisting and bending of the power cable. The socket is attached to the vessel and the ball can rotate freely Within the socket but its up down motion is restricted. The power cable's outer protective sheath is attached to the ball while its conductors pass through the ball and are connected to an internal connector. A flexible cable (wire) is connected between the internal connector and electrical equipment internal to the marine vessel.

Abstract: The generator comprises a float (1) which is movable in response to wave motion in a body of water, a submersible reaction member (2) of adjustable buoyancy, with at least two buoyancy configurations, connected to the float and arranged to resist movement of the float caused by the wave motion, an energy converter (5) for converting such reciprocal movement to useful energy; and biasing means such as a spring 6 for directionally biasing the reciprocal movement. Displacement of the float relative to the reaction member is permitted and reciprocal movement generated in response to such displacement.

Abstract: The present invention relates to a damper for damping the reactionary motion of a wave energy conversion device to wave motion, comprising a damping energy absorber (7) having a reversible non-linear stress-strain response, arranged to damp the reactionary motion of the WEC. According to a first aspect, there is provided a damping structure (2) for a wave energy conversion device (1). The structure comprises a fixed member (6), and a damping member (7) having a reversible non-linear stress-strain response. The present invention also relates to a mooring component (2) for a mooring system (1) and to a method for manufacturing a mooring component (2). The component comprises a deformable element (6) having a reversible non-linear stress-strain response, wherein the response is a composite reversible non-linear stress-strain response.

Abstract: A wave power plant is disclosed. The wave power plant is designed for converting the energy of the disturbed water surface into the energy of the output shaft. The wave power plant can include a displacement body floating on the water surface, the displacement body having an internal installation of a technological working machine that is driven by the tension force of a cable connecting the body to a diving, floating anchor. The force of the cable tension rises each time the displacement body moves upward. An anchor suspended beneath the displacement body allows for utilizing the wave power plant on floating facilities (e.g., safe rafts and boats, floating data centers, boats, and floating platforms) found within the offshore areas of the oceans in the large open sea areas with great depth.

Abstract: A wave energy converter includes a buoy and a power takeoff. A driveshaft in the power takeoff is driven to rotate by movements of the buoy and is mechanically coupled to an electric generator through a planetary gearbox and drives it for generating electric current at an even level, while storing excess energy in an energy accumulation device. The energy accumulation device is coupled to the generator through another part of the planetary gearbox for driving the generator during the other of the rising and sinking movements with continued torque, rotation speed and rotational direction. Major portions of the driveshaft can be located at a radial distance of the generator, allowing the generator and also components coupling the rotation of the portions of the driveshaft to the generator to be located in a sealed space, the only bearings that have to be sealed to the water being those that support said portions of the driveshaft.

Abstract: The present invention relates to a support unit for attaching a device for recovering energy from a marine or fluvial current, characterized in that said support unit includes at least one mooring (1) and a main buoy rope (2) extending from the mooring (1), said buoy rope (2) including at least one mounting point (4) to which at least one energy recovery device is attached. The invention is used for recovering energy from marine and fluvial currents. The support unit according to the invention is configured to work on the surface, in the pelagic zone, or close to the seabed.

Abstract: An apparatus is disclosed for an improved float type wave powered pump that uses the continuous rising and falling wave action in a body of water to pump a fluid. The pump includes piston and cylinder assemblies that are configured for relative reciprocal movement therebetween. One of the assemblies is anchored to the floor of the body of water and the other is vertically moveable in response to a drive float riding on a wave. The pump selectively includes a tide compensating device to reduce the ratio of vertical travel of the drive float to vertical travel of the moveable assembly. The pump also selectively includes a fluid inlet check valve incorporating a support plate of the piston assembly with openings therein and a cover for the same. The pump further selectively includes a directional pressure-activated seal at the point of sliding connection between the piston rod and the cylinder.

Abstract: The invention pertains to a device and method for generation of electrical power from sea waves, with either simultaneous or no desalination of seawater. The device comprises a seaborne portion and a shore-side portion. The seaborne portion of the device comprises a float, an anchor and a pumping mechanism. Seawater and air are drawn in and pumped through pipes and respectively to a shore-side compressor system. The compressor system is adapted to provide pressurized water of constant pressure to the next stage, which is either the desalination assembly through which potable water is produced using the reverse-osmosis method or the water-motor, which drives a generator that provides electrical power or both.

Abstract: Three bodies interact to drive a transmission having a pair of one-way clutches coupling a single length of drive chain or other elongate flexible member to an intermeshed pair of counter rotatable gears so as to drive a primary shaft in a single rotational direction. The three bodies are a fixed body, a floating body, and a suspended and usually submerged weighted body. The three bodies are interconnected by the single length of the elongate flexible member and are spaced apart there along. The weighted body is mounted at one end of the elongate flexible member. The primary shaft is mounted above the surface of a moving fluid mass to either the fixed or floating body. The end of the flexible member opposite to the weight is mounted to the other of the fixed or floating body.

Abstract: A device to capture and store or generate energy from variations in water level of a water body has a housing and an input shaft rotatably mounted to the housing. A drive belt is rotatably connected to the input shaft and a float is attached to that drive belt so that the float reciprocally drives the input shaft as the water levels increase and decrease. An output shaft is also rotatably mounted to the housing while a first one-way clutch is operatively disposed between the input shaft and the output shaft so that the input shaft rotatably drives the output shaft through the clutch in one rotational direction. A reversing gear is rotatably mounted to the housing and rotatably drives a second one-way clutch also operatively coupled to the second shaft to drive the second shaft in the same rotational direction as the first clutch, but during the opposite rotation of the input shaft.

Abstract: An ADVANCED HIGH ENERGY WAVE POWER MODULE and each of the plurality of ADVANCED HIGH ENERGY WAVE POWER MODULES for converting the energy from high energy waves and swells into usable power in industrial scale connected by pressure piping, or by pressure piping and discharge piping, to the consumer of the mechanical energy in form of the high pressurized flow of working fluid is described as the submerged immovable platform and the submerged movable platform connected to the float by outer power flexible link with variable free length and compressible chambers installed between the immovable and movable platforms. The variable buoyancy force from the float converting to the increased driving force, which is acted through the movable platform to the compressible chambers to discharge high pressurized working fluid from compressible chambers through the pressure pipeline to the consumer. The stroke of the movable platform and compressible chambers is less than a height of wave or swells.

Abstract: Hydraulic strength machine in circular movement generating electricity in two different generation spots and mechanical strength machine in circular movement generating electricity, being that that the hydraulic strength machine in circular movement generating electricity in two different generation spots 33 operates by hydraulic principle comprising tubes (2), (3), (4) and (5), and inside each one a float (44) is provided, which drags cables connected to a transmission system connected in its turn to generators (25) and (57), said tubes (2), (3), (4) and (5) being mounted on a frame which rotates driven by an electric engine (8).

Abstract: A pumping mechanism that utilizes wave and tidal energy to operate. The mechanism relies on the depth of the fluid or sea and the length of the pump cylinder to accommodate shifting wave and tide patterns. Alternatively, the mechanism is imbedded or placed in an excavation in the fluid or ocean bed of sufficient depth and width to accommodate the piston cylinder, its' easing and the shifting wave and tide conditions. The invention relies on a buoy or float for the lift of a ballast weighted piston and the ballast weighted piston, when descending, provides the means of creating pressure on the water entrapped in the cylinder, thus causing a pumping action. The pump may be used individually or in concert with other pumps. The pump is intended to move large or small volumes of water at high or low pressures, singularly or in concert with other pumps.

Abstract: A wave power plant is disclosed. The wave power plant is designed for converting the energy of the disturbed water surface into the energy of the output shaft. The wave power plant can include a displacement body floating on the water surface, the displacement body having an internal installation of a technological working machine that is driven by the tension force of a cable connecting the body to a diving, floating anchor. The force of the cable tension rises each time the displacement body moves upward. An anchor suspended beneath the displacement body allows for utilizing the wave power plant on floating facilities (e.g., safe rafts and boats, floating data centers, boats, and floating platforms) found within the offshore areas of the oceans in the large open sea areas with great depth.

Abstract: A device for a winch-operated wave-power plant with a self-tightening winch connecting a wave-energy-absorbing body via a winch wire to a reference point. A winch cable drum is connected via a mechanical energy absorption- and conversion system to a rotating outgoing axle. The mechanical energy absorption- and conversion system is connected to a slip clutch. The slip clutch is arranged between the winch axle and the outgoing axle. The slip clutch can be set to slip, thereby reducing the flow of mechanical rotational energy from the rotating winch through the mechanical energy absorption- and conversion system, so that the amount of energy per time unit absorbed by the mechanical energy absorption- and conversion system is limited by how much the slip clutch slips. The system further includes a governing system controlling the slip clutch by acting upon excessive speed and/or forces in the winch and the winch axle.

Abstract: A piston pump is anchored to the ocean floor with the piston rod connected to a float that rides on the surface waves. The pump connects to a sparge line that discharges a spray of water through the float to indicate proper pump function. The float is formed with a conical upper portion and a conical lower portion and has an annular resilient rim. An array of pumps sends water under pressure through an aquaduct to an onshore electric power generation station, optionally including a reservoir. Water is returned from the generation station to the vicinity from which it was pumped.

Abstract: An apparatus is disclosed for an improved float type wave powered pump that uses the continuous rising and falling wave action in a body of water to pump a fluid. The pump includes piston and cylinder assemblies that are configured for relative reciprocal movement therebetween. One of the assemblies is anchored to the floor of the body of water and the other is vertically moveable in response to a drive float riding on a wave. The pump selectively includes a tide compensating device to reduce the ratio of vertical travel of the drive float to vertical travel of the moveable assembly. The pump also selectively includes a fluid inlet check valve incorporating a support plate of the piston assembly with openings therein and a cover for the same. The pump further selectively includes a directional pressure-activated seal at the point of sliding connection between the piston rod and the cylinder.

Abstract: An energy conversion device, such as a wave energy conversion device has a diaphragm (30) attached to a frame (100, 110) with opposed lateral edges of the diaphragm (30) being attached to the frame (100, 110) with an “S”-shaped configuration. The diaphragm (30) and frame (100, 110) form a cell (20) for fluid which is driven by movement of the diaphragm to drive a power-take-off device such as a turbine mounted in a duct leading from the cell (20). The diaphragm may be reinforced by cords, preferably vertical cords. Multiple cells (20) may be arranged in a ring, or the duct from one cell may lead to a reservoir or to another cell.

Abstract: A generally horizontal distensible tube (1) in the sea containing fluid and oriented in the direction of wave travel, the distensibility being chosen so that the propagation velocity of pressure waves inside the tube (bulge waves) is the same as the velocity of propagation of the waves in the sea. Energy is then transferred from the ocean waves to the bulge wave. Energy extraction means (84, 85) at the stern and/or bow convert the bulge power to useful energy. Said energy extraction means may comprise pistons actuating pumps or linear or rotating generators, or one-way valves allowing the bulge wave to pump fluid via hydraulic accumulators through a turbine. The walls of the distensible tube (1) may be comprised partly of elastomer (86) and partly of inelastic flexible polymer coated fabric (87).

Abstract: A power plant using sea waves comprising a float, a horizontal shaft. The float (1/1) of a spherical or cylindrical shape made with plastic or metal material, empty filled with ballast, floats half emerged and transfers the wave vertical motions to a vertical metal beam (1/2) which can be increased or decreased in order to deal with the tidal changes of the sea level. The vertical beam is attached with knuckle joins, at one end with the float and at the other with horizontal beam of rectangular metal triangle which transfers the vertical motions at the horizontally moving forwards and backwards saw (1/5) with the two chains (1/6) and (3/20) which rotate two pairs of gears each gear of a pair to the diametrically opposite side, so that with every movement one gear produces action while the other gear of the pair moves freely. The gears rotate the horizontal shaft which is fitted on them (3/8) and the shaft gives motion to the generator.

Abstract: The water wave-based energy transfer system is a system for generating electrical power from the natural motion of water waves, such as ocean waves. The system includes an anchor adapted for stationary lodgment on an underwater support surface, such as the ocean floor, and at least one buoyant float provided for floating either on or below the ocean surface. At least one primary cable joins the at least one buoyant float to the anchor, and a secondary cable joins the at least one buoyant float to a tensioning device coupled with a power conversion and generation device on the shore. The oscillatory motion of the at least one buoyant float caused by the water waves or swells generates oscillatory motion in the second cable, which drives the power conversion and generation device.

Abstract: The wave-based power generation system has a buoy or float retained by a cable that enters an underwater power generating station. The cable enters the station housing through an inverted U-tube having upturned inlet and outlet ports, which prevent water from entering the housing. The buoy cable passes over an inlet pulley assembly disposed within the U-tube and has its free end secured to a take-up reel or sheave. A driver pulley is mounted on a shaft coaxial with the take-up reel shaft, and is constrained to unidirectional rotation. Rotation of the driver pulley is coupled to a mainspring pulley and a timing pulley through an idler pulley. A mainspring is compressed by rotation of the mainspring pulley until a cam wheel coaxial with the timing wheel releases a brake, causing the mainspring to expand and rotate a generator shaft to produce electricity.

Abstract: A vertical motion wave power generator having a flotation device, a vertical support structure fixed to the ocean bottom, and a single power shaft attached rotatably to the flotation device. By the use of a pair of one-way clutches the single power shaft converts the up and down motion of ocean waves into continuous unidirectional rotational force to drive an electric generator. The power shaft, transmission, and generator are all attached to the flotation device and move up and down in unison with the flotation device.

Abstract: Power generating apparatus includes a float mounted on a support pivotally mounted to a base and secured to a beam extending rearwardly of the base to a vertically extending elongated structure carrying a pair of vertically movable gear racks in guideways. Each rack is engaged by a gear wheel driven by movement of the racks and a one-way drive arrangement connects each gear wheel to an output shaft. Driving weights are secured to each rack to drive the racks in opposite directions under the action of gravity forces acting on the weights, thus causing the output shaft to rotate in a given direction. The free end of the beam is connected to a cross-arm vertically moveable on a guide on the elongate structure, the cross-arm having a motion transmitting arrangement to raise each weight during vertical movement of the cross-arm resulting from movement of the float.

Abstract: An improved apparatus and method to extract the mechanical energy of waves, tides and water movement into useful mechanical energy, a wave energy converter (WEC). This device is easily scaled to harness said energy according to the needs of local conditions or user requirements. It has five elements, to be placed in a body of water. Two of those elements being a buoyant body, containing an apparatus for water motion energy conversion, and a reactive free weight being able to move relative to each other in response to forces exerted by the body of water. A mooring system, to which, is attached a flexible member. The flexible member attaches these elements together as one device. Upon its length it contains at least two re-positionable elements which restrain the motion of the buoyant body along the length of the flexible member.

Abstract: The present invention relates to the utilization of wave energy and its conversion into operating motion of an electrical energy generating system. The system for generation of electrical energy through the conversion of aquatic wave motion includes floating bodies and a constant rotation mechanism, which converts the two-way linear motion of an inflexible transmission shaft or a flexible transmission shafts into one-way rotation of an output shaft of the constant rotation mechanism. This mechanism allows utilization of wave energy in two directions caused by the rise and fall of waves. The output shaft of the constant rotation mechanism is coupled to a force multiplier that is further coupled to a generator which generates electrical energy. Constant rotation mechanism can be driven by inflexible transmission shaft pivotally coupled to the floating bodies at one end, and the other end to an input gear of the constant rotation mechanism.

Abstract: Three bodies interact to drive a transmission having a pair of one-way clutches coupling a single length of drive chain or other elongate flexible member to an intermeshed pair of counter rotatable gears so as to drive a primary shaft in a single rotational direction. The three bodies are a fixed body, a floating body, and a suspended and usually submerged weighted body. The three bodies are interconnected by the single length of the elongate flexible member and are spaced apart there along. The weighted body is mounted at one end of the elongate flexible member. The primary shaft is mounted above the surface of a moving fluid mass to either the fixed or floating body. The end of the flexible member opposite to the weight is mounted to the other of the fixed or floating body.

Abstract: A buoy for generating electrical energy from an upward heave resulting from a passing wave is provided. The buoy including: a body; a first device associated with the body to which a motion of the heave is transferred; and a second device associated with the body to which the motion is intermittently transferred from the first device. A buoy is also provided for generating electrical energy from a pitch/roll resulting from the passing wave where the first device is associated with the body to which a motion of the pitch/roll is transferred and the second device is associated with the body to which the motion is intermittently transferred from the first device.

Abstract: The Philippians 419 Engine is a machine that produces kinetic energy by using the phenomenon of buoyancy and gravity. No fuel is consumed and no waste elements are produced thus, an inexpensive form of power generation is produced and the Earth can be left alone to heal. The Christian Bible in Philippians 4:19 states that GOD will meet all of our needs. This engine is one way HE is doing just that.

Abstract: The invention is a method and apparatus for extracting power from a buoyant source within a contained column of liquid. It is comprised of an endless chain of movable buoyant objects, a means to convert the movement of the chain into useful work and a tank filled with a constant volume column of water. The buoyant objects comprising the chain sequentially enter the bottom of the water column, move up through the column and emerge at the surface. The emerging buoyant objects leave the tank and are directed to the tank bottom were each buoyant object repeats the cycle. As the chain of buoyant objects cycle through the water column, the volume of water remains constant, with one buoyant object of the chain entering the bottom of the water column as one is exiting at the top surface. The movement of the chain is a function of the buoyancy of the buoyant objects and the movement is converted to work by any conventional means using a rotary drive or linear escapement motor.

Abstract: A floating power generation assembly comprises at least three floating units (900) floating on a body of water, and at least three anchors (916) secured to a solid surface beneath the body of water, each of the floating units (900) being provided with a power generator, the floating units (900) being arranged substantially at the vertices of at least one equilateral triangle. Ship borne apparatus for deploying the floating units of such a power generation assembly and a novel multiple wind turbine assembly are also described.

Abstract: System for multiple harnessing and complemented conversion of energy from sea waves. The system includes a structure of vertical guides along which the central floating body moves, a submerged captive-air tank, held up by the floating body, with the body and the tank so arranged that the movement of the submerged tank is contrary to that of the central floating body. The movement of the central floating body and of the submerged tank is transmitted to the means of conversion of the movement into pneumatic, electrical or hydraulic energy. The system shows high energy harnessing efficiency.

Abstract: A wave activated power generation system comprises a pump to be located on the sea bottom. The piston of the pump is connected by a flexible connection to a float body to be located at the sea surface. The suction chamber of the pump is connected via a valve arrangement to a suction chamber which communicates with the surrounding sea through a water driven motor. In order to achieve a load equalization a gas reservoir with variable volume is provided in the suction chamber, the gas reservoir being separated from the surrounding sea.

Abstract: Apparatus is disclosed for converting ocean wave motion to useable electrical energy. A float is mounted to a raft in a manner to permit movement of the float, relative to the raft, in response to ocean wave motion. An upward drive mechanism is responsive to upward motion of the float to rotate a shaft in a predetermined direction. A downward drive mechanism is responsive to downward motion of the float to rotate the shaft in the same predetermined direction. A conventional electrical generator is coupled to the shaft for converting the rotation of the shaft to electrical energy. In another embodiment the float is adapted to be dropped from an initial position above the surface of a body of water toward the water. A motor cooperates with a control assembly to lift the float from a pickup position to its initial position such that the float may again fall.

Abstract: A device is constructed to convert wave energy to drive an output shaft in rotation. The output shaft can be connected to a nautical vehicle propulsion system or to a power generation system. A float rides upon the undulating surface of a body of water and is connected by a float lever arm which extends radially from a rocker shaft that is rotatably mounted in a frame located on a vessel or platform on a body of water. The rocker shaft undergoes reciprocating arcuate movement in response to movement of the float upon the undulating water surface. A pair of unidirectional clutch mechanisms are coupled to the rocker shaft and to a drive shaft which is also rotatably mounted on the frame. The unidirectional clutches are alternatively connected to turn the drive shaft in a single direction of rotation responsive to movement of the rocker shaft in both directions of rotation.