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Class Information
Number: 290/54
Name: Prime-mover dynamo plants > Fluid-current motors
Description: Prime-mover dynamo plants including a fluid current motor.










Sub-classes under this class:

Class Number Class Name Patents
290/55 Wind 1,605


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Patent Number Title Of Patent Date Issued
7521816 Water current powered motor Apr. 21, 2009
7518259 Assembly comprising a water turbine and a generator, the rotor of which is direct-connected to each one of the blades of the turbine Apr. 14, 2009
7514838 Fan unit using motor equipped with rotor united with fins Apr. 7, 2009
7511387 Method and apparatus for producing energy using air pressure differential Mar. 31, 2009
7508088 System and method for installing a wind turbine at an offshore location Mar. 24, 2009
7504738 Wind turbine and method for operating same Mar. 17, 2009
7504739 Method of transporting and storing wind generated energy using a pipeline Mar. 17, 2009
7501712 Process for using waste water from community sewer systems to generate electrical power Mar. 10, 2009
7492054 River and tidal power harvester Feb. 17, 2009
7489046 Water turbine system and method of operation Feb. 10, 2009
7471010 Wind turbine tower for storing hydrogen and energy Dec. 30, 2008
7471009 Underwater ducted turbine Dec. 30, 2008
7471007 Method for operating a wind power plant and method for operating it Dec. 30, 2008
7471006 Apparatus and method for generating electric power from a subsurface water current Dec. 30, 2008
7468563 Ocean wave air piston Dec. 23, 2008
7466035 Transportable hydro-electric generating system with improved water pressure enhancement feature Dec. 16, 2008
7462945 Self-powered miniature liquid treatment system Dec. 9, 2008
7462949 Floating electricity production unit Dec. 9, 2008
7456513 Modular cell site with air-turbine backup Nov. 25, 2008
7456514 Kinetic hydropower generation from slow-moving water flows Nov. 25, 2008
7453166 System for generating electricity from fluid currents Nov. 18, 2008
7453164 Wind power system Nov. 18, 2008
7441988 Submerged power generating apparatus Oct. 28, 2008
7429803 Sewer line power generating system Sep. 30, 2008
7420288 Stall controller and triggering condition control features for a wind turbine Sep. 2, 2008
7397144 Bearing-less floating wind turbine Jul. 8, 2008
7388302 Hydro-electric power generating system with an adjustable water diversion system Jun. 17, 2008
7387401 Showerhead with turbine driven light source Jun. 17, 2008
7385302 Wind turbine having variable pitch airfoils Jun. 10, 2008
7385303 Integrated fluid power conversion system Jun. 10, 2008
7378751 Fire protection May. 27, 2008
7378750 Tidal flow hydroelectric turbine May. 27, 2008
7375437 Hydroelectric device May. 20, 2008
7372171 Fire protection May. 13, 2008
7372172 Device and method for the generation of electrical energy May. 13, 2008
7365445 Apparatus for converting ocean wave energy to electrical energy Apr. 29, 2008
7365448 Wind driven power generator Apr. 29, 2008
7355298 Syphon wave generator Apr. 8, 2008
7352078 Offshore power generator with current, wave or alternative generators Apr. 1, 2008
7352074 System for producing hydrogen making use of a stream of water Apr. 1, 2008
7348685 Method and apparatus for supplying fresh water and generating electricity by collected rainwater Mar. 25, 2008
7348686 Buoyant rotor Mar. 25, 2008
7345377 Wind wheel and electricity generator using same Mar. 18, 2008
7335999 Fluid actuated rotating device including a low power generator Feb. 26, 2008
7329964 Compact hydropower generator adopting multiple rotary drums Feb. 12, 2008
7329963 Hydro-electrical generator Feb. 12, 2008
7329962 Hydrocratic generator Feb. 12, 2008
7329961 Device for deriving energy from moving fluids Feb. 12, 2008
7308841 Speed adjuster devices, systems, and methods Dec. 18, 2007
7307356 Supporting structures for water current (including tidal stream) turbines Dec. 11, 2007

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19










 
 
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