51
Kevin Lewis Cousineau, Craig Leonard Christenson: Non-volatile over speed control system for wind turbines. Zond Systems, Blakely Sokoloff Taylor & Zafman, July 24, 2001: US06265785 (28 worldwide citation)

A method and apparatus for non-volatile overspeed protection is described. The present invention provides a method and apparatus for non-volatile overspeed detection to provide turbine rotational speed safety during a power outage. In one embodiment, aerodynamic braking is used to slow rotation of a ...


52
Chan Shin: Multi-unit rotor blade system integrated wind turbine. Watson Cole Grindle Watson P L L C, March 2, 1999: US05876181 (28 worldwide citation)

The described wind turbine has a set of propeller type wind force collecting rotor turbines which is comprised of an up-wind auxiliary rotor blade turbine, being disposed on the front end of the combined bevel-planet gear assembly, and a down-wind main rotor blade turbine together with attached exte ...


53
Hans L├╝tze, Stefan Rieken, Dietmar Meyer: Wind farm and method for operating same. General Electric Company, Blakely Sokoloff Taylor & Zafman, May 13, 2008: US07372173 (28 worldwide citation)

A wind farm with at least two wind turbines (1, 2, 3, 4) connected to a power grid is provided, said wind farm further comprising a control unit (5) connected to said at least two wind turbines (1, 2, 3, 4), and a sensor unit (6) connected to said power grid and said control unit (5), wherein said s ...


54
John L Loth: Overspeed control arrangement for vertical axis wind turbines. Schuyler Birch Swindler McKie & Beckett, August 8, 1978: US04105363 (27 worldwide citation)

This invention is an overspeed control arrangement for vertical axis wind turbines employing normally vertically positioned rotor blades, said control arrangement allows the rotor blades to tilt either forward or backwards to form a swept wing configuration, at wind turbine speeds beyond the design ...


55
Cheng Ting Hsu: Tornado type wind turbines. Iowa State University Research Foundation, Zarley McKee Thomte Voorhees & Sease, June 5, 1984: US04452562 (26 worldwide citation)

A tornado type wind turbine has a vertically disposed wind collecting tower with spaced apart inner and outer walls and a central bore. The upper end of the tower is open while the lower end of the structure is in communication with a wind intake chamber. An opening in the wind chamber is positioned ...


56
Erik Nim: Wind turbine with floating foundation. Vestas Wind Systems, Stites & Harbison PLLC, Douglas E Jackson, January 2, 2007: US07156586 (26 worldwide citation)

A floating foundation for wind turbines is disclosed, where the foundation essentially comprises at least three submerged buoyancy bodies connected to the lower end of the tower of the wind turbine at a common node member situated well above the surface of the sea. The buoyancy bodies are connected ...


57
Gaudencio A Labrador: Rein-deer kite and its control systems. July 25, 1995: US05435259 (25 worldwide citation)

What has been created is a new device that is used to take benefits from the energy of the high altitude winds for purposes of doing work and to produce usable and storable energy such as electricity, compressed air, etc., without using fuel. This device maybe in the form of an ordinary glider kite ...


58
Ralph A Morrill: Wind energy metering and recording systems. May 22, 1979: US04155252 (25 worldwide citation)

A system for detecting and metering wind energy and recording the total integrated energy or power levels over any desired period of time. The system emphasizes simplicity of design to achieve: a transducer sensitive to the presence of winds that embodies a means of generating a voltage which is a f ...


59
Thomas L Clark: Windjet turbine. Dennis T Griggs, March 5, 2002: US06352473 (25 worldwide citation)

A roof-mounted wind turbine includes turbine vanes that are linear-shaped and do not have the conventional convex curvature. Additionally, the turbine vanes are made in common with one another or with a common turbine component, so that each vane does not require individual handling nor individual a ...


60
Thomas L Clark: Windjet turbine. Dennis T Griggs, June 24, 2003: US06582291 (25 worldwide citation)

A roof-mounted wind turbine includes turbine vanes that are linear-shaped and do not have the conventional convex curvature. Additionally, the turbine vanes are made in common with one another or with a common turbine component, so that each vane does not require individual handling nor individual a ...



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