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:
Mar. 08, 2016
Filed:
Jun. 12, 2013
Airbus Operations Sas, Toulouse, FR;
Denis De Mattia, Basse Goulaine, FR;
Airbus Operations SAS, , FR;
Abstract
A method for producing a curved section piece from a rectilinear preform of preimpregnated fiber layers includes stacking layers on a deformable mandrel and winding the mandrel and bending the stacked layers on a bending tool on a rotation axis in a single phase and polymerizing the bent layers. The section piece includes a stack of N layers, at least a first portion of which is placed in a plane perpendicular to the rotation axis (X) and at least one second portion parallel to the axis (X) including at least one layer of fibers oriented at 0° along the length of the perform. The N fiber layers are stacked on the mandrel. A neutral fiber is placed on a portion of the mandrel closer to the rotation axis (X) than the last layer of fibers oriented at 0° stacked on the 0second portion parallel to the rotation axis (X).