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US 4,619,585 AGranted
Wind turbine apparatus
OwnerJoe Storminventor
Life of this patent
Estimating the term…
Abstract
Wind turbine apparatus includes a plurality of air foil sail elements secured to a circular frame rotatable in response to wind reacting with the sail elements. The sail elements include deformable outer skin portions, one of which is flattened against an interior form in response to wind forces, and the other of which extends convexly away from the interior form. The deformation changes the camber of the sail element.
Claims13
Air foil sail element apparatus, comprising, in combination:
- support rod means;
- and
- air foil means journaled for rotation on the support rod means, including
- a pivot rod spaced apart from the support rod means for controlling the pivoting of the air foil means,
- an interior form secured to the pivot rod, and
- a deformable outer skin secured to and disposed about the interior form and deformable against the interior form to change the camber of the air foil in response to wind.
3 more elements
Dependencies are inferred from the claim text.