Back to results
US 4,230,293 AGranted
Composite structure and method of making
AssigneeBoeing Commercial Airplane Company
InventorsRobert A. Hamm, Philip C. Whitener
Life of this patent
Estimating the term…
Abstract
An elongate hollow structure with a plurality of reinforcements arranged in a pattern and acting as spacers between a pair of skins. The skins are of resin impregnated wound filaments with reinforcing strips of facing preimpregnated wound filaments that crisscross at the spacing reinforcements, abutting panels extend between adjacent reinforcing spacers to fill the space between the skins, and the structure is bonded with resin into a composite structure.
Claims27
A hollow elongate double walled composite structure comprising:
- a plurality of components including an inner skin of filaments wound essentially circumferentially and longitudinally, an outer skin of filaments wound essentially circumferentially and longitudinally, patterned reinforcing strips of crisscrossing filaments to reinforce the inner skin, patterned reinforcing strips of crisscrossing filaments to reinforce the outer skin, reinforcing plugs located to extend between and to contact the skins at the intersection of the crisscrossing reinforcing strips, and contoured reinforcing panels embedded between contiguous reinforcing plugs and the skins;
- and a resin joining all the components together to make up a composite structure.
An airplane fuselage comprising:
- a plurality of components including an outer skin defining an outer contour of a fuselage, said skin having filaments embedded in a resin and extending essentially circumferentially and longitudinally;
- an inner skin having filaments embedded in a resin and extending essentially circumferentially and longitudinally;
- a multitude of spaced apart crisscrossing strips of filaments embedded in a resin and contacting the outside surface of the inner skin;
- a multitude of spaced apart crisscrossing strips of filaments embedded in a resin and contacting the inside surface of the outer skin;
- a reinforcing plug extending between skins at each point of intersection of the crisscrossing strips, and a multitude of contoured core blocks with each block positioned at its corners by the reinforcing plugs at its sides by contact with adjacent blocks to fill spaces between the skins;
- and resin joining all the components together to form a composite fuselage.
3 more elements
A composite airplane fuselage comprising:
- a plurality of components including an inner skin and an outer skin spaced apart with a plurality of cruciform shaped reinforcements with each reinforcement having an inward facing socket in a center portion and four blades;
- the outer skin defining an outer contour of the fuselage made up of a covering of filaments wound essentially circumferentially and longitudinally, and a series of spaced apart strips of filaments wound to extend in the direction of the blades and to crisscross at the center portion of the reinforcements;
- the inner skin made up of a covering of filaments wound essentially circumferentially and longitudinally, and a series of spaced apart strips of filaments wound to extend in the direction of the blades and to crisscross at the center portion of the reinforcements and said inner skin covering and strips having an opening at each reinforcement to permit access through the inner skin and into the socket;
- abutting panels filling the space between skins with corners of each panel positioned by one of said reinforcements;
- and a resin to bond together the components making up the fuselage into a composite structure.
2 more elements
Dependencies are inferred from the claim text.