The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 29, 2016
Filed:
Sep. 30, 2011
Matteo Casazza, Val di Vizze, IT;
Matteo Verdesca, Tresivio, IT;
Amedeo Sabbadin, Padua, IT;
Philip Baby, Kerala State, IN;
Matteo Casazza, Val di Vizze, IT;
Matteo Verdesca, Tresivio, IT;
Amedeo Sabbadin, Padua, IT;
Philip Baby, Kerala State, IN;
WINDFIN B.V., Leimuiden, NL;
Abstract
A method of fabricating a wind turbine blade tubular spar, wherein the tubular spar extends along a designated axis, is made of reinforced polymer material having fibers arranged in at least two directions, and a polymer matrix incorporating the fibers, and has two caps and two webs; the method including the steps of: molding and cross-linking at least part of a cap or web in composite material; molding and cross-linking an L-shaped structure, which has two opposite parallel flanges, and at least partly incorporates the previously molded, cross-linked cap or web of composite material; repeating the above steps to mold and cross-link a further L-shaped structure; and joining the two cross-linked, L-shaped structures, with the flanges positioned facing in pairs.