Patent ID: 7758299
Filing Date: 2010-07-20
Classification: F03D,Y02B,Y02E

Abstract:
1. A wind turbine for powering an electrical generator, said wind turbine comprising a) a first cylindrical drum member having a first footprint; b) a first ring at a first end of said cylindrical drum member; c) a second ring at a second opposite end of said cylindrical drum member; d) a plurality of turbine vanes extending between said first and second rings and being directly pivotally connected to each of said first and said second rings, each of said plurality of turbine vanes have an arcuate surface for scooping wind, said plurality of turbine vanes being spaced closely enough so as to form a closed surface on said cylindrical drum when pivoted to a closed position to reduce drag; e) a centrally located shaft which rotationally mounts said drum member for rotation about its longitudinal axis; f) means for mounting said centrally located shaft enabling said cylindrical drum member to rotate about its longitudinal axis, wherein said means for mounting comprises a tower which has a second footprint smaller than said first footprint of said cylindrical drum member, said tower being mounted on a portion of ground and having a height sufficient to elevate said first cylindrical drum member above wind-blocking obstructions.