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. 12, 2025

Filed:

Aug. 04, 2023
Applicant:

Airbus Operations, S.l.u., Madrid, ES;

Inventors:

Yolanda Miguez Charines, Madrid, ES;

Noelia Colas Garcia, Madrid, ES;

Augusto Perez Pastor, Madrid, ES;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 70/42 (2006.01); B29C 70/44 (2006.01); B29K 105/08 (2006.01); B29K 307/04 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B29C 70/446 (2013.01); B29K 2105/0872 (2013.01); B29K 2307/04 (2013.01); B29L 2031/003 (2013.01);
Abstract

Method to make a T shaped stiffener form from a stiffener preform () having a foot () configured to be in contact with an aircraft panel, and a sole () with an edge (). The manufacturing method includes: obtaining laminates () formed of layers of composite material, folding the laminates () to be L shaped in cross section, joining the laminates to form a T shaped preform (), molding the edge of the sole () so that the edge is semicircular in cross section, applying to the edge () a strip of semi-cured carbon fabric (L) and a fresh strip of prepreg fiberglass (L), and curing the preform () to obtain the stiffener.


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