Windmill
AssigneeWonder Wind Enterprises, Inc.
InventorRobert Westerhausen
Life of this patent
Estimating the term…
Abstract
A windmill blade system with two distinct blade ends with each comprising a center area having a series of identical projections equidistant from a central mounting orifice in the center area. Each of the projections consist of an upward and a downward facing triangle sharing a common base. When the blade units are combined by aligning the center areas of each, the triangles of the upper blade unit are above the plane formed by the center areas and the lower triangles of the lower base units are below that plane. With the lower blade unit projections forming a mirror image of the upper ones. The invention also contemplates a windmill having at least one of the blade systems rotating horizontally about a vertical shaft.
Claims4
A windmill blade system comprising in combination:
- (1) a first blade unit having:
- (a) a planar center area and a center mounting orifice;
- and
- (b) a series of projections extending equidistantly from said center point and from each other around the periphery of the center area each of said projections consisting of an upper and a lower triangle, each having an inner and an outer face and sharing a common base, the outward faces of each of said triangles being above the plane of the center area and the inward faces of said triangles defining an angle not greater than 90.degree. as measured from a point on the common base line with each of said projections being essentially equal in size and configuration;
- and
- (2) a second blade unit having a center area equal in outer configuration and having projections identical to said first blade unit positioned adjacent to and inverse with said first base unit with each of the pairs of triangles on said second blade unit positioned below the plane of the center area of said second unit, said projections of said second blade unit forming a mirror image of said projection of said first blade unit when viewed on a plane extending from said center areas of said adjacent blade unit.
Dependencies are inferred from the claim text.