Elliptical propeller and windmill blade assembly
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United States of America Patent
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Oct 16, 2001
Grant Date -
N/A
app pub date -
Dec 24, 1998
filing date -
Dec 24, 1998
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Abstract
Non-planar propellers or windmill blade assemblys are proposed which have tips that are curved to point in the same direction as the axis of rotation of the propeller. This non-conventional design results in a stronger, stiffer, and more efficient propeller or windmill.
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