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.

Date of Patent:
Aug. 02, 2022

Filed:

Jan. 16, 2019
Applicant:

Siemens Gamesa Renewable Energy, Brande, DK;

Inventors:

Harald Stecher, Skørping, DK;

Thomas Bro Wernlund, Hjørring, DK;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03D 1/06 (2006.01); B32B 3/16 (2006.01);
U.S. Cl.
CPC ...
F03D 1/0675 (2013.01); B32B 3/16 (2013.01); F05B 2230/31 (2013.01); F05B 2280/4002 (2013.01);
Abstract

A flexible balsa wood panel for a rotor blade of a wind turbine, including a plurality of balsa wood modules and a polymer film which is attached to a surface of each balsa wood module to connect the balsa wood modules together is provided. The flexible balsa wood panel has the following advantages. An adhesion area of the polymer film is significantly larger than that of a glass fiber mesh. This in turn reduces the risk of balsa wood modules falling off during handling the flexible balsa wood panel. A polymer film with a high melting temperature relative to a maximum blade curing temperature can be selected in order to avoid curing process induced delaminations. Furthermore, due to the polymer film attached to the first surface, a more uniform adhesion may be achieved compared to a currently used glass fiber mesh.


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