Wind turbine blade
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 1, 2014
Grant Date -
May 23, 2013
app pub date -
Jan 3, 2013
filing date -
Jul 8, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A wind turbine blade comprising an aerodynamic fairing supported along at least a portion of its axial length by a spar (12). The spar comprises at least two spar segments (12) joined end-to-end at an interface (9), each spar segment comprising a shear web (3) with a spar cap (4) on each side. The outer face (6) of each spar cap tapers inwardly towards the interface such that its depth is reduced towards the interface creating a recess on each side of the interface formed by the tapered faces of adjacent spar caps. A respective connection piece (8) is sized to fit into each recess. Each connection piece (8) is sized to fit into each recess. Each connection piece (8) being fixed to the tapered faces of adjacent spar caps to form a double scarf joint.
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