Fluid reaction surfaces (i.e. – impellers) – Articulated – resiliently mounted or self-shifting impeller... – Sectional – staged or nonrigid working member
Reexamination Certificate
2011-04-26
2011-04-26
Look, Edward (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Articulated, resiliently mounted or self-shifting impeller...
Sectional, staged or nonrigid working member
C415S004400, C415S117000, C416S140000
Reexamination Certificate
active
07931440
ABSTRACT:
A vertical axis wind turbine comprising: a rotatable vertical shaft; a first horizontal shaft attached to the vertical shaft, and extending on either side of the vertical shaft; a first wind turbine blade fixedly attached to the first horizontal shaft, the first wind turbine extending in a generally perpendicular direction from the first horizontal shaft; a second wind turbine blade fixedly attached to the first horizontal shaft, the second wind turbine blade extending in a generally perpendicular direction from the first horizontal shaft, the second wind turbine blade fixed at an operational angle with respect to the first wind turbine blade; a first and second motion limiting means attached to the vertical shaft, where each motion limiting means extends into the rotational travel of a turbine blade.
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Blake Michael A.
Look Edward
White Dwayne J
LandOfFree
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