US 11,752,705 B2
Methods of fabricating multi-region U-shaped composite structures
Bradley J. Blonigen, Wichita, KS (US); George M. Osborne, Wichita, KS (US); and Jack Hearnen, Wichita, KS (US)
Assigned to Spirit AeroSystems, Inc., Wichita, KS (US)
Filed by Spirit AeroSystems, Inc., Wichita, KS (US)
Filed on Dec. 20, 2022, as Appl. No. 18/84,895.
Application 18/084,895 is a continuation of application No. 17/328,426, filed on May 24, 2021, granted, now 11,571,863.
Prior Publication US 2023/0127118 A1, Apr. 27, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B29C 70/00 (2006.01); B29C 70/22 (2006.01); B29C 70/38 (2006.01); B29K 307/04 (2006.01); B29K 309/08 (2006.01)
CPC B29C 70/222 (2013.01) [B29C 70/382 (2013.01); B29K 2307/04 (2013.01); B29K 2309/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of fabricating a multi-region U-shaped composite structure, the method comprising the steps of:
forming a space between a first sidewall formed of a first composite material and a second sidewall formed of a second composite material;
laying up a third composite material in the space to form a nose wall; and
overlapping at least a portion of the first composite material and at least a portion of the second composite material with separate portions of the third composite material.