Class / Patent application number | Description | Number of patent applications / Date published |
417330000 | Tide or wave motor | 18 |
20100226798 | Tidal Energy System - A completely submersed means of extracting energy from a tidal flow is particularly adapted to pump water to be stored and used around tidal change periods or to stabilize the output of offshore windmills. It can be retrieved and brought to the surface for maintenance and also repositioned on the sea bed, by remote control. Operation of its reaction means is automatically limited to prescribed water depths. | 09-09-2010 |
20110027107 | POWER PLANT, METHOD FOR PRODUCING POWER, AND APPLICATION OF SAID POWER PLANT - Power plant comprising: a lower level reservoir, a feed-through (line, hose, pipe, channel) for fluid communication from the lower level reservoir to a higher level reservoir, characterised by a pump arranged in connection with the feed-through in order to pump water from the lower level reservoir to the higher level reservoir in order to store energy by emptying the lower level reservoir, and a turbine/generator for power production arranged in or at the lower level reservoir in connection with said feed-through, or additional feed-through, for fluid communication between the lower level reservoir and the higher level reservoir for power production during flow of water from the higher level reservoir to the lower level reservoir. A method for power production. Use of the power plant. | 02-03-2011 |
20120063929 | HYDRAULIC PUMP STRUCTURE FOR WIND TURBINE GENERATOR OR TIDAL CURRENT GENERATOR AND METHOD OF MOUNTING HYDRAULIC PUMP - An object of the present invention is to provide a hydraulic pump structure which improves the ease of mounting the hydraulic pump on the main shaft, and a method of mounting the hydraulic pump which can be performed in a simplified manner. A hydraulic pump unit | 03-15-2012 |
20120251349 | Sea wave power converter - A primary piston that is connected to a secondary piston that is part of a compressor, primary and secondary piston are connected by a connecting rod, the primary piston is driven by the pressure and vacuum produced by a pressure chamber that is driven by the variation of the sea waves. The output of the compressor is applied to a pressure tank, and then the out put flow is controlled and applied to the turbine. | 10-04-2012 |
20160102650 | Waterfall Apparatus - A rotary pump that utilizes falling water to produce useful energy. The pump is a conduit in a spiral form mounted on an axis that is set at an angle whereby when rotated, water flows into the inlet end of the conduit and is transported to an elevation. The conduit is powered by an impeller wheel that rotates by falling water. | 04-14-2016 |
417331000 | Float | 13 |
20100215518 | BUOYANCY PUMP POWER SYSTEM - A system for generating electricity includes a pump operable to convert wave motion from a body of water into mechanical energy. The pump includes an input port through which an operating fluid can enter the pump and an output port through which the operating fluid can exit the pump. A first outlet line and a second outlet line are fluidly coupled to the output port of the pump. A first reservoir is fluidly connected to the first outlet line, and a second reservoir is fluidly connected to the second outlet line, both reservoirs being selectively capable of receiving operating fluid driven through the output port. | 08-26-2010 |
20110081259 | WAVE-POWERED, RECIPROCATING HOSE PERISTALTIC PUMP - 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. | 04-07-2011 |
20110116942 | WAVE ENERGY CONVERTER - A wave energy harnessing converter ( | 05-19-2011 |
20110268591 | WAVE POWERED PUMPING APPARATUS - 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. | 11-03-2011 |
20120301331 | TIDAL RESPONSIVE BARRIER - 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. | 11-29-2012 |
20130034454 | WAVE ENERGY CONVERTER - A self priming gravity wave water pump, double acting, vertically self adjusting incorporating a submerged column platform as shown in FIG. | 02-07-2013 |
417333000 | Guided | 7 |
20080206077 | Wave Pump Device - A wave pump device ( | 08-28-2008 |
20080260548 | Wave energy converter - 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. | 10-23-2008 |
20090081055 | WAVE POWERED PUMPING APPARATUS - 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. | 03-26-2009 |
20090196769 | High pressure fluid pump - The high pressure fluid pump includes a driver defined by a float riding on the waves of a sea surface, a fluid pump housing, an impeller operatively attached to the driver and disposed within the fluid pump housing, a backflow check system connected to the fluid pump housing, and an outflow check system controlling the pressure, volume of fluid flow, and direction of fluid flow to various other systems. The pump may be used to pump fluids other than seawater and may include features multiplying pumping mechanical advantage for a given tidal range. | 08-06-2009 |
20110097220 | WAVE ACTUATED PUMP AND MEANS OF CONNECTING SAME TO THE SEABED - A pumping apparatus designed for the purpose of economically harvesting the energy of the waves on the surface of a body of water and converting such energy into hydraulic power which may be transmitted by pipes and used for any purpose but preferably for the generation of electricity or the production of desalinated water. To better explain the means of operation of this invention, referring to | 04-28-2011 |
20130209287 | AIR COMPRESSOR - An air compressor including: a motor; a compression mechanism that is configured to be driven by the motor; a tank unit that includes an air tank configured to store therein compressed air generated by the compression mechanism and to which the motor is fixed; an elastic member via which the compression mechanism is coupled to the tank unit; and a rotation transfer member that is configured to transfer a rotational force of the motor to the compression mechanism even when a shaft center of a rotary shaft of the motor and a shaft center of a rotary shaft of the compression mechanism deviate from each other. | 08-15-2013 |
20140369864 | SEMI-SUBMERGED DEVISE FOR ABSORBING THE ENERGY OF THE WAVES - Semi-submerged device for the use of the energy of the waves, comprising at least one moving assembly formed by a buoy ( | 12-18-2014 |