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US 8,894,373 B2Granted
Vertical spiral angle wind turbine
OwnerPaul Firicinventor
Life of this patent
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Abstract
The present device is a vertically oriented wind turbine blade having a rectangular curvilinear shaped blade which includes a top edge, a bottom edge, an outer edge, a helical inner edge, an inner surface and an outer surface. The blade's top edge is curved and defines a radius R and the helical inner edge defines an angle theta relative to a vertical reference line. The blade further includes an L shaped outer rib with a transverse leg mounted to the inner surface and extending along the outer edge, the outer rib also includes a perpendicular leg extending perpendicular to the transverse leg.
Claims10
A vertically oriented wind turbine blade comprising:
- a) a rectangular curvilinear shaped blade which includes a top edge, a bottom edge, an outer edge, a helical inner edge, an inner surface and an outer surface;
- b) wherein the top edge is curved and defines a radius R;
- c) wherein the helical inner edge defines an angle theta relative to a vertical reference line,
- d) wherein the blade further includes an L shaped outer rib with a transverse leg mounted to the inner surface and extending along the outer edge, the outer rib also includes a perpendicular leg extending perpendicular to the transverse leg.
1 more element
Dependencies are inferred from the claim text.