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:
Apr. 19, 2016

Filed:

Feb. 07, 2013
Applicant:

Airbus Operations Sas, Toulouse, FR;

Inventors:

Ludovic Fournie, Toulouse, FR;

Philippe Blot, Nantes, FR;

Cédric Belleil, Labarthe sur Leze, FR;

Hervé Lesourne, Nantes, FR;

Jean-Michel Laborie, Toulouse, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04C 2/38 (2006.01); B32B 3/04 (2006.01); B64C 3/20 (2006.01); B64C 1/06 (2006.01); B64C 1/00 (2006.01);
U.S. Cl.
CPC ...
E04C 2/38 (2013.01); B32B 3/04 (2013.01); B64C 1/064 (2013.01); B64C 3/20 (2013.01); B64C 2001/0072 (2013.01); Y02T 50/433 (2013.01); Y10T 29/49826 (2015.01); Y10T 428/24198 (2015.01);
Abstract

The stiffeners of a composite material panel may be protected by a structural section having a configuration absorbing edge impacts without propagation of impact energy to the protected structure. Each composite panel with protected parallel stiffeners has a multiply front face coming to an edge and extending between two lateral flanks of outside plies, symmetrically relative to a median plane (Pm). A device for protecting each stiffener includes a structural section that caps the stiffener symmetrically relative to this median plane (Pm). This structural section consists of an upper section formed above the edge and configured to envelop a space above the edge, a lower section framing the lateral flanks by longitudinal walls (Pi) fastened to these flanks, and an intermediate section bearing at least partially on the edge via transverse walls (Pb) so as to minimize the propagation of impact forces to the lower section.


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