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Class Information
Number: 416/85
Name: Fluid reaction surfaces (i.e., impellers) > Float supported
Description: Apparatus wherein an impeller* is supported in a working fluid by buoyant means.










Sub-classes under this class:

Class Number Class Name Patents
416/86 Buoyant hub or rim 29


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8668452 Floating device for production of energy from water currents Mar. 11, 2014
8651798 Kinetic hydropower generation system and intake therefore Feb. 18, 2014
8579576 Articulated false seabed Nov. 12, 2013
8393850 Inflatable wind turbine Mar. 12, 2013
8277168 Tidal power apparatus Oct. 2, 2012
8272831 Water current powered generating apparatus Sep. 25, 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
8197208 Floating underwater support structure Jun. 12, 2012
8192160 Wind turbine having variable height and method for operating the same Jun. 5, 2012
8186949 Method for damping tower vibrations in a wind turbine installation May. 29, 2012
8169099 Deep offshore floating wind turbine and method of deep offshore floating wind turbine assembly, transportation, installation and operation May. 1, 2012
8152441 Submersible waterwheel with hinged rotor blades and spring-loaded water seals Apr. 10, 2012
8109711 Tethered autonomous air vehicle with wind turbines Feb. 7, 2012
8102068 Buoyant in-stream hydro turbine Jan. 24, 2012
8061963 Guided wind kite for increased wind turbine power output Nov. 22, 2011
8047785 Counterbalanced orthogonal hydropower system Nov. 1, 2011
8022566 Methods and systems for operating a wind turbine Sep. 20, 2011
8011642 Cruising aerator Sep. 6, 2011
8007236 Supporting system for suspended wind turbines Aug. 30, 2011
7851936 Water current power generation system Dec. 14, 2010
7811048 Turbine-intake tower for wind energy conversion systems Oct. 12, 2010
7661658 Submersible hollow shaft motor and submersible floating aerator comprising the same Feb. 16, 2010
7661922 Installation for harvesting energy of tides (IHET) in shallow waters Feb. 16, 2010
7347667 Wind power installation Mar. 25, 2008
7331762 Submerged water current turbines installed on a deck Feb. 19, 2008
7296971 Wind power station Nov. 20, 2007
7293960 Power generation assemblies, and apparatus for use therewith Nov. 13, 2007
7270513 Apparatus and method for generating power from moving water Sep. 18, 2007
7011501 Energy generating system Mar. 14, 2006
6979171 Maritime energy generating device Dec. 27, 2005
6935832 Portable power generating devices Aug. 30, 2005
6551053 Hydro-electric generator Apr. 22, 2003
6527504 Plant for utilizing the energy in waves Mar. 4, 2003
6406251 Bi-directional hydroturbine assembly for tidal deployment Jun. 18, 2002
6246125 Portable wind and hydro electric generating system Jun. 12, 2001
6139255 Bi-directional hydroturbine assembly for tidal deployment Oct. 31, 2000
5946909 Floating turbine system for generating power Sep. 7, 1999
5800123 Bladed pump capstan Sep. 1, 1998
5664418 Whirl-wind vertical axis wind and water turbine Sep. 9, 1997
5484257 Wind energy device Jan. 16, 1996
5471098 Device for connecting flow energy of water into electrical energy Nov. 28, 1995
5451137 Unidirectional helical reaction turbine operable under reversible fluid flow for power systems Sep. 19, 1995
5443361 Plant for the recovery of energy from waves in water Aug. 22, 1995
5297925 Water column floating pump Mar. 29, 1994
5051059 Fluid powered electric generator having hinged vane rotor Sep. 24, 1991
5040948 Coaxial multi-turbine generator Aug. 20, 1991
5011372 Aeration apparatus for pond Apr. 30, 1991
4868408 Portable water-powered electric generator Sep. 19, 1989
4843249 Hydroelectric system Jun. 27, 1989
4764313 Air driven water circulation mill Aug. 16, 1988

1 2 3










 
 
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