51
David A Skelskey: Wind turbines. Chicago Province of the Society of Jesus, FitzGibbon Roehrig Greenawalt & Stone, September 13, 1983: US04403916 (29 worldwide citation)

A wind turbine having a generally vertically extending support tower upon which are mounted a front or blade section and a rear or tail section. The front section includes a generally horizontal drive shaft which is connected to a vertical drive shaft in the support tower. The rear or tail section i ...


52
Chan Shin: Multi-unit rotor blade system integrated wind turbine. Watson Cole Grindle Watson P L L C, March 2, 1999: US05876181 (29 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
Thomas L Clark: Windjet turbine. Dennis T Griggs, March 5, 2002: US06352473 (29 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 ...


54
Kevin L Cousineau: Microcontroller based control system for use in a wind turbine. Zond Systems, Cushman Darby & Cushman, June 6, 1995: US05422826 (28 worldwide citation)

A distributed module control system for controlling a wind turbine using multiple controls and monitors comprising multiple modules that include microcontrollers, and having data input terminals and data output terminals; high level logic circuitry interconnecting the modules via selected data input ...


55
Thomas L Clark: Windjet turbine. Dennis T Griggs, June 24, 2003: US06582291 (28 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 ...


56
Richard F Schaefer, David Kreutzman, Don N Tamm: Interlocking shape for use in construction members. D Three Enterprises, Margaret Polson, Oppedahl Patent Law Firm, March 4, 2014: US08661765 (27 worldwide citation)

Interlocking support posts form an interlocking rack system which may have a single mold which provides both a male and a female joinder member. Between the support posts can be mounted panels such as solar panels. Under the support posts can be installed a roof stand off assembly which prevents wat ...


57
Erik Nim: Wind turbine with floating foundation. Vestas Wind Systems, Stites & Harbison PLLC, Douglas E Jackson, January 2, 2007: US07156586 (27 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 ...


58
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 ...


59
Emilian Mieczyslaw Moroz, Kirk Gee Pierce: Methods and apparatus for reduction of asymmetric rotor loads in wind turbines. General Electric Company, James E McGinness Esq, Armstrong Teasdale, October 10, 2006: US07118339 (26 worldwide citation)

A method for reducing load and providing yaw alignment in a wind turbine includes measuring displacements or moments resulting from asymmetric loads on the wind turbine. These measured displacements or moments are used to determine a pitch for each rotor blade to reduce or counter asymmetric rotor l ...


60
Emilian Mieczyslaw Moroz: Multi-piece wind turbine rotor blades and wind turbines incorporating same. General Electric Company, Armstrong Teasdale, June 3, 2008: US07381029 (26 worldwide citation)

A multisection blade for a wind turbine includes a hub extender having a pitch bearing at one end, a skirt or fairing having a hole therethrough and configured to mount over the hub extender, and an outboard section configured to couple to the pitch bearing.