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Class Information
Number: 415/3.1
Name: Rotary kinetic fluid motors or pumps > With means for controlling casing or flow guiding means in response to natural fluid current force or direction > Having specific features for water current
Description: Device comprising structure particularly adapted to a natural water current environment.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8678744 Hydro torque electric generator Mar. 25, 2014
8678745 Rotor blade design for a wells turbine Mar. 25, 2014
8616829 Shrouded turbine assembly Dec. 31, 2013
8596955 Impulse turbine for use in bi-directional flows Dec. 3, 2013
8591168 Subsurface wave power generation systems and methods Nov. 26, 2013
8475113 Hydroelectric power device Jul. 2, 2013
8388301 Turbine system for utilizing the energy of oceanic waves Mar. 5, 2013
8371801 Systems for improved fluid flows through a turbine Feb. 12, 2013
8310078 Apparatus for receiving and transferring kinetic energy from water flow Nov. 13, 2012
8303241 Turbine yaw control Nov. 6, 2012
8272831 Water current powered generating apparatus Sep. 25, 2012
8246293 Submersible plant Aug. 21, 2012
8231327 River high pressure energy conversion machine Jul. 31, 2012
8221051 Systems and methods for maximizing energy extraction from moving fluids Jul. 17, 2012
8206113 Method and apparatus for converting marine wave energy by means of a difference in flow resistance form factors into electricity Jun. 26, 2012
8177477 Dam-free hydro-power plant May. 15, 2012
8123457 System and apparatus for improved turbine pressure and pressure drop control using turbine head potential Feb. 28, 2012
8102071 River and tidal power harvester Jan. 24, 2012
8102068 Buoyant in-stream hydro turbine Jan. 24, 2012
8100650 Cyclical wave energy converter Jan. 24, 2012
8044530 Fluid-based electrical generator Oct. 25, 2011
8011875 Controllable transmission system and method thereof Sep. 6, 2011
7928595 Electric power generation system for harvesting underwater currents Apr. 19, 2011
7891953 Rotating wedge leveler Feb. 22, 2011
7686583 Cyclical wave energy converter Mar. 30, 2010
7682126 Tethered propgen Mar. 23, 2010
7658589 Turbine with tube arrangement and method of preventing detachment of a fluid flow Feb. 9, 2010
7645115 System, method, and apparatus for a power producing linear fluid impulse machine Jan. 12, 2010
7604454 System for generating electricity from fluid currents Oct. 20, 2009
7521816 Water current powered motor Apr. 21, 2009
7503744 Undershot impulse jet driven waterwheel having an automatically adjustable radial gate for optimal hydroelectric power generation and water level control Mar. 17, 2009
7442002 Tidal turbine installation Oct. 28, 2008
7402021 Fluid activated wheel/generator pair Jul. 22, 2008
7388302 Hydro-electric power generating system with an adjustable water diversion system Jun. 17, 2008
7357872 Lift station and method Apr. 15, 2008
7331752 Method of conversion of continuous medium flow energy and device for conversion of continuous medium flow energy Feb. 19, 2008
7329961 Device for deriving energy from moving fluids Feb. 12, 2008
7317261 Power generating apparatus Jan. 8, 2008
7307356 Supporting structures for water current (including tidal stream) turbines Dec. 11, 2007
7293960 Power generation assemblies, and apparatus for use therewith Nov. 13, 2007
7288850 System and apparatus for emergency backup power generation Oct. 30, 2007
7270513 Apparatus and method for generating power from moving water Sep. 18, 2007
7262517 Hydro-electric power generating system Aug. 28, 2007
7258523 Means to regulate water velocity through a hydro electric turbine Aug. 21, 2007
7179045 Self cleaning hydro delivery system Feb. 20, 2007
7147428 Hydro turbine Dec. 12, 2006
7134557 Lift station and method Nov. 14, 2006
7112034 Wind turbine assembly Sep. 26, 2006
7105942 Plant, generator and propeller element for generating energy from watercurrents Sep. 12, 2006
7083377 System and method and for use in hydroelectric power station and hydroelectric power station employing same Aug. 1, 2006

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