Patent ID: 8354759
Filing Date: 2013-01-15
Classification: F03D,F05B,Y02E

Abstract:
1. A wind powered apparatus having a front for orientation into the wind and a rear, the apparatus comprising: a front nose piece; a first set of blades rearward of the nose piece that rotates in a first direction about a horizontal axis; a second set of blades, rearward of the first set of blades, that rotates in a second direction about the horizontal axis, the second direction opposite to the first direction; an electricity generating means located within the front nose piece concentric with the horizontal axis and operatively connected to both the first and second sets of blades; and, a vertical pivot axis between the first set of blades and the electricity generating means; wherein the apparatus further comprises a central shaft concentric with the horizontal axis and connecting the first set of blades, the second set of blades and the electricity generating means, the central shaft comprising a first shaft that has a hollow cross-sectional shape and a second shaft journaled within the first shaft, the first shaft rotatable in the first direction and the second shaft rotatable in the second direction, the first set of blades connected to the first shaft and the second set of blades connected to the second shaft, wherein the electricity generating means is connected to both the first and second shafts, the electricity generating means comprising a stator and a rotor, each of which is mutually exclusively connected to either the first or second shafts for concentric rotational movement in opposite directions relative to one another.