Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Douglas Johnson0
Frederick W. Piasecki0
Date of Patent
October 26, 2010
0Patent Application Number
125413530
Date Filed
August 14, 2009
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A wind turbine has a horizontal axis of rotation and features a hub beam and two turbine blades attached to opposing ends of the hub beam in a spaced-apart relation. The blades have a first position in which the blades are radially arrayed about the hub beam. The blades have a second position in which the blades are folded and moored to the tower. A control system communicates with weather sensors and determines whether to move the blades between the first and second positions.
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