US Patent 7821148 Wind turbine
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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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Patent Inventor Names
Douglas Johnson0
Frederick W. Piasecki0
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US Patent 07821148 Wind turbine US Patent 7821148 Wind turbine
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Patent Number
078211480
Patent Number
78211480
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Official Website
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Patent Jurisdiction
Patent Number
078211480
Date of Patent
October 26, 2010
0Patent Application Number
125413530
Date Filed
August 14, 2009
0Official Website
Patent Primary Examiner
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US Patent 07821148 Wind turbine
Infobox
Is a
Patent jurisdiction
Patent number
07821148
Date of patent
October 26, 2010
Patent application number
12541353
Date Filed
August 14, 2009
Patent primary examiner
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