Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 8, 2011
Patent Application Number
11937370
Date Filed
November 8, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
A vertical axis wind turbine is described. The wind turbine can include a top ring, a middle ring and a lower ring, wherein a plurality of vertical airfoils are disposed between the rings. For example, three vertical airfoils can be attached between the upper ring and the middle ring. In addition, three more vertical airfoils can be attached between the lower ring and the middle ring. When wind contacts the vertically arranged airfoils the rings begin to spin. By connecting the rings to a center pole which spins an alternator, electricity can be generated from wind.
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