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Wind blade spar cap and method of making

United States Patent

May 27, 2008
View the Complete Patent at the US Patent & Trademark Office
A wind blade spar cap for strengthening a wind blade including an integral, unitary three-dimensional woven material having a first end and a second end, corresponding to a root end of the blade and a tip end of the blade, wherein the material tapers in width from the first to the second end while maintaining a constant thickness and decreasing weight therebetween, the cap being capable of being affixed to the blade for providing increased strength with controlled variation in weight from the root end to the tip end based upon the tapered width of the material thereof. The present inventions also include the method of making the wind blade spar cap and a wind blade including the wind blade spar cap.
Mohamed; Mansour H. (Raleigh, NC)
3-Tex, Inc. (Cary, NC)
11/ 522,736
September 18, 2006
STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY-SPONSORED RESEARCH AND DEVELOPMENT The invention was made in part with Federal funds from the Department of Energy.