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Class Information
Number: 415/906
Name: Rotary kinetic fluid motors or pumps > Natural fluid current motor > Having specific features for water current
Description: Device comprising structure particularly adapted to a natural water current environment.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8616829 Shrouded turbine assembly Dec. 31, 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
8382425 Hydraulic energy converter Feb. 26, 2013
8376699 Vortex hydro turbine Feb. 19, 2013
8371801 Systems for improved fluid flows through a turbine Feb. 12, 2013
8303241 Turbine yaw control Nov. 6, 2012
8272831 Water current powered generating apparatus Sep. 25, 2012
8231327 River high pressure energy conversion machine Jul. 31, 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
8197180 Water flow energy extraction device Jun. 12, 2012
8177480 Modular system for generating electricity from moving fluid May. 15, 2012
8177477 Dam-free hydro-power plant May. 15, 2012
8152441 Submersible waterwheel with hinged rotor blades and spring-loaded water seals Apr. 10, 2012
8102068 Buoyant in-stream hydro turbine Jan. 24, 2012
8100650 Cyclical wave energy converter Jan. 24, 2012
7845899 Fluid powered turbine engine Dec. 7, 2010
7832979 Vortex hydraulic turbine Nov. 16, 2010
7686583 Cyclical wave energy converter Mar. 30, 2010
7682126 Tethered propgen Mar. 23, 2010
7670101 Portable hydro-generator Mar. 2, 2010
7597532 Single sided power generator support frame Oct. 6, 2009
7311496 Apparatus and method for generating electric energy in a fluid environment Dec. 25, 2007
7258523 Means to regulate water velocity through a hydro electric turbine Aug. 21, 2007
7182573 Wind turbine Feb. 27, 2007
7147428 Hydro turbine Dec. 12, 2006
7044711 Helical device for conversion of fluid potential energy to mechanical energy May. 16, 2006
6955049 Machine and system for power generation through movement of water Oct. 18, 2005
6877968 Low head water turbine Apr. 12, 2005
6835043 Hydraulic turbine feed tank Dec. 28, 2004
6729840 Hydroelectric powerplant May. 4, 2004
6648589 Hydroelectric turbine for producing electricity from a water current Nov. 18, 2003
6527504 Plant for utilizing the energy in waves Mar. 4, 2003
6431821 High torque impulse turbine Aug. 13, 2002
6406251 Bi-directional hydroturbine assembly for tidal deployment Jun. 18, 2002
6217284 Oscillating fluid flow motor Apr. 17, 2001
6210113 Water wheel turbine for water power stations Apr. 3, 2001
6206630 High torque impulse turbine Mar. 27, 2001
6168373 Dual hydroturbine unit Jan. 2, 2001
6139255 Bi-directional hydroturbine assembly for tidal deployment Oct. 31, 2000
6109863 Submersible appartus for generating electricity and associated method Aug. 29, 2000
6000907 Fluid-activatable vane for a fluid turbine Dec. 14, 1999
5921745 Low head turbine Jul. 13, 1999
5735665 Reaction hydraulic turbine Apr. 7, 1998
5443361 Plant for the recovery of energy from waves in water Aug. 22, 1995
5440175 Waterwheel-driven generating unit Aug. 8, 1995
5167483 Method for utilizing angular momentum in energy conversion devices and an apparatus therefore Dec. 1, 1992
5154566 Perfected hydraulic machine preferably for minimum height waterfalls Oct. 13, 1992
4872805 Water powered device Oct. 10, 1989

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