Fluid reaction surfaces (i.e. – impellers) – Having positive means for impeller adjustment – Motor bodily rotatable with impeller hub or shaft
Reexamination Certificate
2006-07-11
2009-11-10
Verdier, Christopher (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Having positive means for impeller adjustment
Motor bodily rotatable with impeller hub or shaft
C416S174000, C416S20400A, C416S24400R, C416S24500R
Reexamination Certificate
active
07614850
ABSTRACT:
A wind turbine generator includes at least one blade and a hub assembly. The hub assembly includes at least one substantially cylindrical wall defining a substantially annular hub cavity. The assembly also includes at least one substantially triangular frame inserted into the hub cavity and is fixedly coupled to the cylindrical wall. The assembly further includes at least one blade attachment apparatus having at least one blade support sleeve fixedly coupled to at least a portion of the cylindrical wall. The sleeve is configured to receive at least a portion of the wind turbine blade. The blade attachment apparatus also includes at least one blade pitch bearing having a blade portion and a hub portion. The hub portion is slidingly engaged with the blade portion blade portion and the blade portion is positioned radially outboard of the hub portion.
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Armstrong Teasdale LLP
General Electric Company
McGinness Esq. James
Verdier Christopher
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