Abstract: A wave energy conversion device includes a permanent magnet generator, a first driving component and a second driving component. The permanent magnet generator includes a stator structure and a rotor structure. The stator structure includes a stator body. The rotor structure includes a rotor body. The rotor body is disposed inside the stator body in a swinging manner or in a rotatable manner. The first driving component is coupled to the rotor structure. The second driving component is coupled to the stator structure. The wave energy conversion device of the present invention requires a low speed/angle of a swinging/rotating movement of the rotor body relative to the stator body to generate electricity, which facilitates electricity generation from wave energy.

Abstract: The present disclosure provides a renewable energy generator including a housing formed to float in a body of water, a main generator unit, frame(s) fixed internally of the housing at intervals, a main rotating shaft for linking the main generator unit rotatably to the frame(s), and a controller for operating the pendulum by driving the main motor, and controlling the main generator unit to cause the housing to behave due to the pendulum operation. The main generator unit includes an inner housing, a pendulum moving inside the inner housing, a pendulum rotation shaft vertically connected to the pendulum and fixed to the inner housing, a main motor for converting kinetic energy of the pendulum into electrical energy, and a gear unit linked to the pendulum rotation shaft and transmitting the kinetic energy of the pendulum to the main motor.

Abstract: A machine and process to compress ambient air using natural swell of ocean waves to store energy. The devise is a bi-directional air pump operated by ocean wave power of water buoyancy as well as earth gravity in a pressure vessel using a piston. The machine uses a large surface area as float connected by a rod to a small area as piston, housed in a pressure vessel to multiply compression of air. The compression of air is directly proportional to the respective surface areas of float to the piston attached with a rod inside the pressure vessel. An array of similar machines can be employed to multiply potential energy output.

Abstract: A wave energy converter includes a floating portion and an anchor portion, wherein the anchor portion includes a transport support structure configured to carry the floating portion.

Abstract: A submerged wave energy conversion apparatus and pressurized fluid or electricity production system are provided that harvests energy from a motive force derived from pressure differentials created by the interaction of the system with ocean water. The system is capable of capturing energy from up to six different modes of motion of the absorber body in response to the energy of incident waves. The apparatus has an absorber body that is attached to one or more damping mechanisms like a hydraulic cylinder, a hydraulic circuit that can create useful mechanical torque, a restoring mechanism such as an air spring to restore the absorber system to stable equilibrium, and a buoyant artificial floor to create an opposing reaction force. The apparatus may also have a controller for system monitoring and control, to maintain optimized energy extraction, and for load management to avoid damaging loads.

Abstract: Disclosed is a wave energy power generation apparatus, comprising a plurality of wave energy collecting units. Each of the wave collecting units comprises: a potential energy collecting assembly used for collecting wave potential energy, a kinetic energy collecting assembly used for collecting wave kinetic energy and a positioning assembly used for vertically limiting and horizontally positioning buoyancy compartments. The apparatus is beneficial for improving the collection efficiency of wave energy, and simultaneously can satisfy the purposes of long-term safe and stable operation, of being adapted for scaled construction.

Abstract: A wave energy converter includes a buoyant body and an acceleration tube with a working cylinder and working piston movable therein, a mooring system, and at least one energy collecting device including a differential cylinder having an internal pump piston connected to the working piston via a piston rod. The differential cylinder includes a pumping chamber and an annular pumping chamber. When decreasing volume of the annular gap-shaped pumping chamber, the pump piston expels hydraulic fluid from the pumping chamber toward the pressure accumulator and draws hydraulic fluid from the fluid tank into the substantially cylindrical pumping chamber. During a working stroke causing a decrease in volume of the substantially cylindrical pumping chamber, the pump piston causes hydraulic fluid to bypass the pump piston through a fluid connection from the substantially cylindrical pumping chamber into the annular gap-shaped pumping chamber and further in a direction toward the pressure accumulator.

Abstract: A system and method for deterring theft of a marine vehicles is provided. The system is designed to collect barometric pressure data and analyze it to determine whether there has been a sudden change in elevation that may be indicative of a theft. The system is also designed to collect environmental data pertaining to a marine vehicle's normal environment and compare it to a normal environmental state of the marine vehicle in order to detect changes that may be indicative of a theft. Additionally, the system is designed to monitor equipment of the marine vehicle and alert a user if the equipment has been moved in a way that may be indicative of a theft. When the system determines an event has occurred that may be indicative of a theft, the system may alert the user by triggering an alarm via a computer readable signal.

Abstract: A wave energy converter includes a buoyant body and an acceleration tube with a working cylinder and working piston movable therein, a mooring system, and at least one energy collecting device including a hydraulic pump in the form of a hydraulic cylinder having a jacket and an internal pump piston connected to at least one piston rod, which forms a mechanical connection between the buoyant body and the working piston in the working cylinder, wherein at least one float body having a buoyancy in the body of water where the wave energy converter operates is connected to the working piston and wherein the buoyancy of the float body is adapted to maintain the working piston in a desired vertical operating range in the working cylinder when the wave energy converter.

Abstract: The invention relates to the extraction of energy from waves and comprises a linear array of several Salter's Ducks set roughly perpendicular to the oncoming wave crest. The Ducks are each rotatably connected through a power take-off device to a rigid space frame. The Ducks are spaced and designed to have an optimized natural frequency of each Duck and the array and space frame as a whole and the response characteristics of each Duck may be further modified by controls on the power take-off in response to signals from the whole array of Ducks, particular the lead Duck, but possibly also each other Duck and the space frame motion as a whole. The whole space frame and Duck array can be moored by any means appropriate, but most likely to a single point catenary moor, though other mooring systems are possible.

Abstract: A vehicle damper comprises a fluid filled cylinder, a piston for movement within the cylinder, at least two fluid ports formed in the piston and at least one shim at least partially blocking the ports. In one embodiment, a fluid collection area is formed between the ports and the shim, the collection area permitting communication between fluid in the ports. In another embodiment, the piston includes at least one aperture constructed and arranged to receive a threaded bleed valve.

Abstract: The present invention discloses a driving structure for a power generator along a coastal land using kinetic energy of wave. The power generator is operated via upward and downward swing of a toggle lever. The structure is provided with a wave-guiding channel for constraining flow direction of waves. The channel is provided with two side walls, an end portion connecting the side walls, and an intake opening toward the ocean, so as to form a gully. At the top of side wall, an extending portion is provided near the end portion. The extending portion is provided with a pivot. The structure is further provided with a floating body in the gully near the end portion. The floating body is provided at one end thereof with a coupling portion connected to the pivot, and provided at the other end thereof with an abutting portion abutted against the toggle level.

Abstract: Wave energy conversion systems are provided utilizing a mass of water entrained in a collapsible water mass enclosure that is suspended beneath a float (e.g., a vehicle, buoy, platform, etc.) to provide an inertial force in opposition to the rising heave-induced acceleration of the float. The water mass enclosure is communication with a generator, such as by tethering one end of a tethering means to the generator and the other to the enclosure. The enclosure may be placed in communication with an intermediary hydraulic system, which is also in communication with the generator. In certain embodiments, the system will include a reel system for deploying and retrieving the water masse enclosure.

Abstract: A buoyant actuator (19) for coupling wave motion to a device operable in response to wave motion in a body of water. The buoyant actuator (19) comprises a generally spherical body (20) defining an exterior surface and a hollow interior adapted to contain water received from the body of water. The exterior surface comprises a plurality of facets (101) which are tessellated. Typically, there are 36 facets (101), of which 12 comprise generally pentagonal facets (105) and 24 comprise generally hexagonal facets (107). The body (20) comprises a plurality of openings (143) for fluid flow between the hollow interior and the surrounding body of water. A closure configured as a flap (145) is provided for each opening (143) to block or at least inhibit fluid flow therethrough, the closure being adapted to move away from the opening to permit fluid flow therethrough in response to a predetermined fluid pressure differential imposed thereon between the hollow interior and the surrounding body of water.

Abstract: Device (100) for conversion of mechanical energy from sea waves to electric energy, characterized by:—at least a float (101) and two rigid rods (102), (103), preferably anchored at one end to the seabed (108), and at the other end to the float (101) through flexible cables (106), (107); two respective masses (104), (105) keep the free ends of that rods (102), (103), constantly in traction condition pulled towards the sea bed (108);—at least a power generator (109), or other similar device suitable to convert and/or transmit energy, that is placed close to its respective hinge (110), (111), placed at the bottom parts of the rods (102), (103), so that the oscillatory motion of the float (101), following the waves level (112), causes a force with a vertical component that leads to a rotatory and oscillatory motion of the rods (102), (103), which are pivoted on its respective hinge (110), (111), and generates therefore electric energy by motion of gears of the same generator (109); the horizontal component of the

Abstract: A device for delivering a percutaneous nephrostomy plug is provided. The device comprises a tubular member configured for insertion into a biological body. The device further comprises a handle coupled to a proximal end of the tubular member. The handle comprises a pusher element, an actuation element, and a transmission. The pusher element is disposed within the tubular member, and is configured to deliver a plug through a distal end of the tubular member. The transmission is coupled to the tubular member and the actuation element, and the transmission is configured to cause a retraction of the tubular member relative to the pusher element in response to a depression of the actuation element. A first depression of the actuation element toward the tubular member urges a partial exposure of the plug. A second depression of the actuation element urges a further exposure of the plug.

Abstract: A multi-stage pump system for use in desalination systems including a first stage S1 providing low pressure for priming the system a second stage S2 that is in fluid communication with the first stage and is primed by the low pressure from the first stage. The second stage S2B includes at least one reciprocating piston 122, in an enclosing cylinder 121, 121A and is attached to the two second flexible inflatable bladders 123. The piston 122 will move up and down within the cylinder 121 121A relative to the movement of the two second stage flexible bladders 123 due to priming by the first stage affecting their buoyancy. The driving fluid then passes into a passage 130 and is expelled to an outlet and Stage three (S3) at higher pressure when the first reciprocating member 122 proceeds through a complete stroke.

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: 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 powered energy conversion system operable to convert the motion of ocean waves into a usable form of energy such as electricity. The wave powered energy conversion system includes a storage tank operable to store air pressurized to a pressure greater than that of atmospheric air. A frame assembly circumferentially surrounds the storage tank and consists of sub-frame assemblies organized into quadrants. The frame assembly is movable and has operably coupled thereto a plurality of buoyant objects. A plurality of air pumps are present that are connected to the frame assembly and further connected to an air delivery pipe network. The buoyant objects are operable to move at least a portion of the frame assembly so as to operate at least a portion of the plurality of air pumps so as to produce pressurized air to be distributed to the storage tank.

Abstract: A wave power converting device includes a platform, a plurality of first and second fluid guide assemblies and floating assembly. The platform has a retaining post anchored to an underwater ground. The first and second fluid guide assemblies are disposed underwater so that the water could flow into the first and second fluid guide assemblies. The floating assembly could be moved up and down relative to the platform so as to press the water upwardly through the first and second fluid guide assemblies to a reservoir. Under this arrangement, the energy potential of the water in the reservoir can be converted into electrical power.

Abstract: A system for altering water properties in an outdoor body of water includes a holding vessel configured to hold water. The holding vessel has at least one wall extending above a mean surface water level. The system also includes at least one conduit extending downward from the holding vessel. The at least one conduit has a length extending to a depth at which at least one property of water at the depth differs substantially from that of water at the surface. The system further includes at least one aperture formed in at least one of the holding vessel or the at least one conduit and located at a distance below the mean surface water level. Further still, the system includes at least one one way valve coupled to the at least one aperture and allowing flow of water in only one direction.

Abstract: A system is described generally for providing a structure or structures for altering water surface temperature. The system includes a holding vessel configured to hold water. The holding vessel has at least one wall coupled to a lowermost portion. The at least one wall extends above the water level and the lowermost portion is configured to be submerged. At least one conduit extends from the lower side of the holding vessel. The at least one conduit has a length extending to a depth at which a property of water at the depth is substantially different from that of the water at the surface.

Abstract: A structure described generally for altering one or more properties within a body of water includes a vessel configured to hold water. The vessel may have at least one wall. The at least one wall extends at least above a mean surface water level. At least one conduit extends downward from the holding vessel. The at least one conduit has a length that extends below the surface of the water. A propulsion system may be coupled to at least one of the vessel or the conduit and may be configured to provide forces to the vessel.

Abstract: A self priming gravity wave water pump, double acting, vertically self adjusting incorporating a submerged column platform as shown in FIG. 4A, the submerged column platform (22) can be tethered (28) or secured by a pivot to a weight (29) or fixed into the water bed (31). The column (22) can be incorporated into an additional submerged water filled column chamber (23), to operate as a hydraulic tidal adjustable column platform. The gravity wave pump (9) is a wave energy converter using wave energy in the form of wave motion to displace a float (2), to lift the pumps reciprocating piston (12) and uses gravity, causing a weight (3) to push a piston down as the wave passes. The pump could pressurise piped water to a head of up to 100 meters or more and could pump pressures in excess of 150 pounds per square inch when adjusted accordingly.

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: Apparatus (10) for harnessing ocean wave energy and for converting the harnessed energy to high pressure sea water, typically above 100 psi and preferably above 800 psi. The high pressure seawater generated by the apparatus (10) can be piped to shore for use in any appropriate purpose. The apparatus (10) comprises a float (12) buoyantly suspended within the body of seawater (1) and a pump (13) operatively connected to the float (12). The pump (13) comprises an intake chamber (47), a discharge chamber (49) and a piston (61) extending between the intake and discharge chambers (47, 49). The piston (61) comprises a tube (63) having a flow passage (102) extending between the intake and discharge chambers (47, 49). The piston (61) and discharge chamber (49) cooperate to define a pumping chamber (100) adapted to undergo expansion and contraction in response to reciprocatory motion of the piston. The piston (61) is operatively connected to the float (12) to be driven by upward movement of the float.

Abstract: Sea Electrical Energy Production (SEEP”) unit (12) is disclosed for using the rise and fall of ocean waves to drive a hydraulic pump (18) which draws water through a turbine (14) to drive an electric generator (16). The crests and troughs of the ocean waves drive the hydraulic pump (18) which both draws suction on and pressurizes a reservoir (50) that receives water discharged from the turbine (14). A suction stroke of the hydraulic pump (18) draws water from the ocean through the turbine (14), through a first one-way valve (54) and into a pressure reservoir (50). A pressure stroke of the hydraulic pump (18) pushes water from the pressure reservoir (50), through the second one-way valve (56) and back into the sea. The turbine (14) is preferably directly connected to the electric generator (16) by gears to increases the rate of rotation of applied to the electric generator (16) when low pressure heads are applied across the turbine (12).

Abstract: A seesaw-type wave power generating device (1) includes: a first buoy (10); a second buoy (20) disposed on one side of the first buoy (10); an impeller generator (30) disposed between the first buoy (10) and the second buoy (20); a first connecting pipe (42) having both ends communicated with the first buoy (10) and the impeller generator (30); and a second connecting pipe (42) having both ends communicated with the second buoy (20) and the impeller generator (30). A liquid (2) is filled in the first buoy (10) and the second buoy (20). The first buoy (10) and the second buoy (20) bob on the water and water waves (4) causes the liquid (2) to flow back and forth between the first connecting pipe (41) and the second connecting pipe (42), thereby driving the impeller generator (30) to generate electricity. The present invention is easy for implementation and maintenance.

Abstract: A wave-powered pumping device for location in a body of water is described. The pumping device includes a submersible cylinder to be anchored to the bed of the body of water, the cylinder defining a bore. An underwater float acts on the cylinder and is arranged to urge the cylinder into an upright orientation in the water. A surface float is arranged to float at, or close enough to, the surface of the body of water in use to move up and down in the body of water in accordance with wave movement and tidal movement. An elongate member depends from the surface float. The elongate member extends telescopically into the bore of the submersible cylinder to define a pumping chamber within the cylinder. The volume of the pumping chamber varies with wave movement in a pumping cycle to draw fluid into the pumping chamber on an upstroke of the elongate member and to pump fluid out of the pumping chamber on a downstroke of the elongate member.

Abstract: An apparatus for inhibiting the formation of tropical cyclones, comprising an elongated rigid tube through which cooler water is pumped from below to the near-ocean surface, thereby depriving incipient tropical cyclones of the heat energy they require for further development. The tube contains a pump comprising a fixed flap valve and a movable flap valve. The movable flap valve is attached to a drive disk encircling the tube at a depth where ambient waters have little vertical motion. The wave-driven vertical motion of the elongated tube causes the movable flap valve to oscillate with respect to the fixed flap valve, thereby pumping seawater upward onto the near-ocean surface. The apparatus also can navigate to alternative locations by means of a propulsion/steering system, and it can submerge to a safe depth to avoid oncoming vessels and potentially damaging seas. A fleet of apparatuses is required to provide the necessary cooling effect.

Abstract: A self priming gravity wave water pump, double acting, vertically self adjusting incorporating a submerged column platform as shown in FIG. 4A, the submerged column platform (22) can be tethered (28) or secured by a pivot to a weight (29) or fixed into the water bed (31). The column (22) can be incorporated into an additional submerged water filled column chamber (23), to operate as a hydraulic tidal adjustable column platform. The gravity wave pump (9) is a wave energy converter using wave energy in the form of wave motion to displace a float (2), to lift the pumps reciprocating piston (12) and uses gravity, causing a weight (3) to push a piston down as the wave passes. The pump could pressurise piped water to a head of up to 100 metres or more and could pump pressures in excess of 150 pounds per square inch when adjusted accordingly.

Abstract: The present invention relates to a way to adapt a wave transducer to the actual amplitude of incident waves, so as to improve the efficiency of energy conversion. The adaptation includes a variable-energy piston assembly and a tapered float.

Abstract: A wave energy converter for compressing air from the movement of waves of a body of water is provided. The wave energy converter includes a middle cylinder upon which an upper cylinder slides thereon and in which a lower cylinder slides therewithin. An upper and lower compression chamber disposed within the upper and lower cylinders allows air to be drawn therewithin and compressed when the upper and lower cylinders are moved relative to the middle cylinder as waves progress through their wavelength from crest to trough and vice versa.

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: A tidal barrier is provided that may be selectively deployed in response to tidal changes. The tidal barrier includes a net having a tensile, membrane with an upper edge and a lower edge. The lower edge has a plurality of anchor points for affixing the lower edge to a seabed below a body of water. The tidal barrier further includes a bladder affixed to the upper edge and having a valve for selectively inflating and deflating the bladder. The bladder has a sufficient volume to cause the upper edge of the membrane to rise to a surface of the body of water when the volume is inflated with a gas. A pump is disposed in proximity to the tensile membrane and is in fluid communication with the valve of the bladder. The pump has a controller for selectively prompting the pump to inflate and deflate the bladder with the gas.

Abstract: A Self Priming Gravity Wave Water Pump, Double Acting, vertically Self Adjusting incorporating a Submerged Column Platform as shown in FIG. 4A, the submerged column platform (22) can be tethered (28) or secured by a pivot to a weight (29) or fixed into the water bed (31). The column (22) can be incorporated into an additional submerged water filled column chamber (23), to operate as a hydraulic tidal adjustable column platform. The Gravity Wave Pump (9) is a wave energy converter using wave energy in the form of wave motion to displace a float (2), to lift the pumps reciprocating piston (12) and uses gravity, causing a weight (3) to push a piston down as the wave passes. The pump could pressurize piped water to a head of up to 100 meters or more and could pump pressures in excess of 150 pounds per square inch when adjusted accordingly.

Abstract: An energy-harvesting, self-propelled buoy includes a housing, an inertial power pump for converting wave motion to electrical energy, an electrical energy storage pod operably associated with the inertial power pump, and a propulsion unit for propelling the buoy. The inertial power pump is extensible from the housing.

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.

Abstract: An engine for reducing the temperature at the surface of a body of water during a storm includes at least one floatation member for supporting the engine, an elongate tube mounted on the floatation member configured to receive a stream of air therethrough, the elongate tube having first and second ends, a constricted center section therebetween and means for distributing water into the tube adjacent the constricted center section, a wind turbine having at least one rotor, a differential and a shaft connecting the rotor to the differential, a pump operatively connected to the wind turbine and extending into the body of water to a depth where the temperature of the water is less the water temperature at the surface and wherein water from beneath the surface of the body of water is pumped into the manifold and distributed into the elongate tube to cool the stream of air.

Abstract: A device for generating substantially vertically-reciprocating motion uses a plurality of chambers in substantial vertical alignment. Each chamber has an air pocket and a buoyant member which floats at the air/water interface, and such air pockets expand and contract upon receipt of additional amounts of air from below and release of some of the air, usually to a chamber above. As the air pockets expand and contract, the interfaces are raised and lowered, and the buoyant elements are raised and lowered with the interfaces. A method uses such device to generate such reciprocating motion, which optionally may be used to drive electric generators.

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 energy conversion system includes a barge support frame having a frame superstructure and a plurality of frame support legs selectively extendable from the frame superstructure, a barge carried by the barge support frame and at least one wave energy conversion pump comprising a water transfer conduit carried by the barge support frame and having a filter port and an inner water transfer space disposed in fluid communication with the filter port, a pressure conduit mounted for displacement on the water transfer conduit and having an outer water transfer space disposed in fluid communication with the inner water transfer space and a buoyancy vessel carried by the pressure conduit. Also disclosed are a power generation pumping system and a river or stream fed system having tanks to contain and pressurize water to a force sufficient to drive turbine generators for electric power production and potable water use.

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: A wave powered electrical generator includes: a floating unit that floats in water and accommodates a power generator therein. The floating unit has a wave power system that includes, a chamber containing fluid, a free-floating mass provided in the chamber that separates the chamber into first and second chambers defined at each side of the mass, a first valve that allows the fluid in the first chamber to be discharged from the first chamber as the free-floating mass moves toward the first chamber, and a second valve that allows the fluid in the second chamber to be discharged from the second chamber as the free-floating mass moves toward the second chamber. The fluid discharged through the first and second valves flows into a pipe that discharges the received fluid from an end thereof against a turbine attached to a power generator.

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: A stationary structure is mounted on the floor of an ocean or other body of water subject to wave motion. The structure provides a floatation body that moves with the waves and is able to drive a sealing plate in a compression chamber. When the water level changes, or wave action magnitude changes, a second sealing plate is able to move automatically to maintain a constant size of the compression chamber. Air compressed in the chamber is let into a tank to maintain a constant elevated pressure in the tank and the air pressure is used to power a turbine to generate electricity. In an alternate embodiment, a mechanical linkage drives the turbine directly.

Abstract: A device for the generation of energy and in particular electrical energy includes a cell or chamber which moves upwardly and downwardly in a body of water. Cog wheels are connected to the cell. The cog wheels are connected to the shafts of generators. Rotation of the cog wheels operates the generators which produce energy. The cog wheels engage anchor chains or vertical supports. One end of each anchor chain is secured to an anchor located at the bottom of the body of water. The other end of the anchor chain is secured to a float which floats at or near the surface of the body of water. The up and down movement of the cell causes the cog wheels to move upwardly and downwardly along the anchor chains and thereby rotate. This rotation drives the energy generator and generates energy, preferably electricity. The cog wheels are permitted to rotate upon the receipt of a request for energy. This results in a highly efficient source of energy or electricity.

Abstract: A wave energy harnessing converter (1) has a tube (3) which floats on the sea. A water inlet (2) delivers water to the tube, and an air inlet (2) delivers air to the tube (3). The tube has sufficient buoyancy and flexibility to float on the water and conform to the shape of waves when the tube extends substantially in the direction of travel of the waves, causing water in the tube to be conveyed from the inlet and to be pressurised and the air to be compressed in a series of moving air pockets. The tube is reinforced to minimise energy losses through distortion or elongation. A converter output section (10) for receiving water and compressed air from the tube (3) for providing energy.

Abstract: A wave-powered peristaltic hose pump, typically installed in a body of fluid upon which waves occur. It is characterized by a peristaltic hose which is reciprocally drawn through one or more anchored compression pulley blocks by opposing buoyant members reacting to undulating wave action. Occlusion of the hose by the compression pulley block causes a reciprocating inflow and outflow of water which is converted to a one-way outflow by a set of valves. When tensile loads are beyond the capabilities of the the peristaltic hose itself, it is installed within a low-stretch, flexible support means linked to the opposing buoyant members in a manner which minimizes tensile loading of the peristaltic hose. The apparatus is employed to deliver a flow of pressurized seawater to power driven devices or processes such as but not limited to desalinators, electricity generators, hydraulic motors and hydrogen fuel generators.