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Class Information
Number: 417/331
Name: Pumps > Motor driven > Tide or wave motor > Float
Description: Apparatus in which the motor working member is buoyant so as to float in the water which is actuating it.










Sub-classes under this class:

Class Number Class Name Patents
417/333 Guided 54
417/332 Pivoted 65


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8702982 Water alteration structure and system Apr. 22, 2014
8679331 Water alteration structure movement method and system Mar. 25, 2014
8628303 Wave energy converter Jan. 14, 2014
8590299 Device to capture wave energy Nov. 26, 2013
8480381 Wave energy conversion Jul. 9, 2013
8424300 Sea electricity energy production unit Apr. 23, 2013
8405241 Seesaw-type wave power generating device Mar. 26, 2013
8366410 Wave transduce having variable energy piston assembly Feb. 5, 2013
8348636 Wave energy converter Jan. 8, 2013
8342818 Wave powered pumping apparatus Jan. 1, 2013
8308449 Wave energy converter Nov. 13, 2012
8242621 Energy-harvesting, self-propelled buoy Aug. 14, 2012
8209973 Wave responsive electrical generator Jul. 3, 2012
8148840 Ocean wind water pump for de-energizing a storm Apr. 3, 2012
8134245 Device and method for generating reciprocating motion Mar. 13, 2012
8105052 Wave and tide actuated renewable energy pump Jan. 31, 2012
8097150 Wave energy conversion system Jan. 17, 2012
8018084 Wave powered electrical generator Sep. 13, 2011
8007252 Wave powered pumping apparatus Aug. 30, 2011
7980832 Wave energy converter Jul. 19, 2011
7969033 Buoyancy energy cell Jun. 28, 2011
7909536 Wave energy converter Mar. 22, 2011
7911073 System and method for a hydro-hydraulic gravitational generator Mar. 22, 2011
7735317 Buoyancy pump power system Jun. 15, 2010
7713032 High pressure tide actuated fluid pump May. 11, 2010
7690900 Wave energy accumulator Apr. 6, 2010
7584609 Buoyancy pump power system Sep. 8, 2009
7581901 Wave energy converter Sep. 1, 2009
7563082 Sewage handling system, cover, and controls Jul. 21, 2009
7554216 Modular near-shore wave-powered energy collection system Jun. 30, 2009
7535117 Ocean wave power recovery and conversion spar buoy engine May. 19, 2009
7520736 Sewage handling system, cover, and controls Apr. 21, 2009
7402028 Pressurisation system Jul. 22, 2008
7257946 Buoyancy pump power system Aug. 21, 2007
7258532 Buoyancy pump device Aug. 21, 2007
7188471 Submersible power plant Mar. 13, 2007
7059123 Buoyancy pump power system Jun. 13, 2006
7042112 Wave energy conversion system May. 9, 2006
7003947 Gyro wave activated power generator and a wave suppressor using the power generator Feb. 28, 2006
6981373 Buoyancy engine Jan. 3, 2006
6953328 Buoyancy pump device Oct. 11, 2005
6863806 Barge-mounted tidal-powered desalinization system Mar. 8, 2005
6812588 Wave energy converter Nov. 2, 2004
6772592 Float dependent wave energy device Aug. 10, 2004
6768217 Wave energy converter system of improved efficiency and survivability Jul. 27, 2004
6575712 Air compressor system Jun. 10, 2003
6454546 Maritime pump Sep. 24, 2002
6443653 Modular floating breakwater for the transformation of wave energy Sep. 3, 2002
6392314 Wave energy converter May. 21, 2002
6132180 Automatic pumping apparatus utilizing wave motion Oct. 17, 2000

1 2 3










 
 
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