Fluid reaction surfaces (i.e. – impellers) – Radially extensible or retractible rotor working member – Having pitch adjustment
Reexamination Certificate
2005-06-07
2009-12-15
Look, Edward (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Radially extensible or retractible rotor working member
Having pitch adjustment
C416S226000, C415S004100
Reexamination Certificate
active
07632070
ABSTRACT:
A wind turbine blade made of a fixed blade section with an integral mounting flange for attachment to a wind turbine hub. A moveable blade section is attached to the fixed blade section and is free to move in a longitudinal direction relative to the fixed blade section. A positioning device controllably positions the moveable blade section to vary the overall length of the blade. This allows the wind turbine's rotor diameter to be adjusted. The rotor diameter can be increased in order to provide high power output in low wind conditions and it can be decreased in order to minimize loads in high wind conditions.
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Dawson Mark H.
Wallace Jack A.
Bosche John Vanden
Look Edward
White Dwayne J
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