Windmill blade and apparatus for generating power using the blade
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United States of America Patent
Stats
-
Jan 10, 2006
Grant Date -
Dec 23, 2004
app pub date -
Sep 18, 2002
filing date -
Sep 19, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is a wind power generating apparatus in which windmill blades are mounted in a multi-stage fashion to a rotating shaft while being spaced apart from one another to efficiently generate wind power. Each windmill blade includes blade bodies mounted to the rotating shaft, and provided with wind pressure adjusting holes, wind pressure adjusting plates coupled to each blade body, and connected together to a wire, each wind pressure adjusting plate being slidable along guides respectively arranged at opposite sides of the associated wind pressure adjusting hole to adjust an opening degree of the wind pressure adjusting hole, elastic members each adapted to connect one end of the associated wire to the associated blade body, and winches each adapted to connect the other end of the associated blade body, the winches being mounted to a single shaft to simultaneously wind or unwind all wire.
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