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:
Jun. 25, 2019
Filed:
Jan. 30, 2015
Applicant:
Lm Wp Patent Holding A/s, Kolding, DK;
Inventors:
Assignee:
LM WP PATENT HOLDING A/S, Kolding, DK;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03D 1/06 (2006.01); B29C 70/08 (2006.01); B29C 70/30 (2006.01); B29D 99/00 (2010.01); B29K 31/00 (2006.01); B29K 63/00 (2006.01); B29L 31/08 (2006.01); B29K 309/08 (2006.01);
U.S. Cl.
CPC ...
F03D 1/0675 (2013.01); B29C 70/08 (2013.01); B29C 70/30 (2013.01); B29D 99/0025 (2013.01); B29K 2031/00 (2013.01); B29K 2063/00 (2013.01); B29K 2309/08 (2013.01); B29K 2995/0046 (2013.01); B29L 2031/085 (2013.01); F05B 2220/30 (2013.01); F05B 2230/20 (2013.01); F05B 2240/2211 (2013.01); F05B 2280/5001 (2013.01); F05B 2280/6003 (2013.01); Y02E 10/721 (2013.01); Y02P 70/523 (2015.11);
Abstract
A wind turbine blade having a transition between two reinforcement fiber types is described. A gradual transition is provided by a combined double-tapered thickness section with a first type of reinforcement fibers sandwiched between a second type of reinforcement fibers or vice versa. The double-tapering is provided during layup and the reinforcement material is impregnated with a polymer resin and then cured or hardened so that the two types of reinforcement fibers are embedded in a common polymer matrix.