Aerodynamic brake on a wind rotor for a windmill
Automatic storm protection control for wind energy system
Control mechanism for a windmill
Directionally stabilized wind turbine
Downstream wind turbine
Dual fold tail vane assembly for wind energy systems
Fan shroud filter
Flat spine scorer and saddle stitcher
Fluid rotor
Fluid-driven turbine with speed regulation
Free-yaw, free-pitch wind-driven electric generator apparatus
Minimization of the effects of yaw oscillations in wind turbines
Modified helicoidal wind responsive device
Multiple rotary wind power systems
Offset-axis windmill having inclined power shaft
Rotary positionable installation
Rotor blade and wind energy plant
Self-restored windmill
Vertical axis wind turbine
Vertical-axle power machine