Patent ID: 9440725
Filing Date: 2016-09-13
CPC Classification: B29C,B29D,B64C,Y02T,Y10T

Claim Text:
1. A T-shaped reinforced stringer comprising a plurality of superimposed plies of composite material, wherein a foot is defined for attachment to an aircraft skin panel, and a web attached to the foot by one of its longitudinal edges, such that both elements together form a profile with an L-shaped or T-shaped section, where the plies of composite material are continuous and extend over a majority surface of the foot and of the web of the stringer, wherein the stringer incorporates at least one widening of the section of the stringer, where the widening is formed by a localized stack of reinforcing plies of composite material, and the reinforcing plies being embedded within the stringer and arranged parallel to the continuous plies on which they are superimposed, where the widening of the section extends from a free edge of the stringer to an internal termination edge in the stringer; wherein the T-shaped reinforced stringer is symmetric about an axis bisecting the web.