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US 12,098,485 B2Granted
Curved preform and method of making thereof
AssigneeAlbany Engineered Composites, Inc.
InventorStephen Biddle
Life of this patent
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Abstract
Three-dimensional woven preforms are curved and have continuous fibers in the direction of curvature and wherein the base of the preforms is curved with the warp fibers continuous across the length of the preform and some of the warp fibers are longer than other warp fibers.
Claims5
A curved woven preform comprising:
- a plurality of weft fibers;
- a plurality of warp fibers interwoven with the plurality of weft fibers to form a base of the preform;
- wherein the base of the preform is curved with the warp fibers continuous across the length of the preform and some of the warp fibers are longer than other warp fibers and wherein a curvature of the preform is formed by applying at least one set of mating clamps having a geometry including a first fiber path and a second fiber path, the first fiber path being longer than the second fiber path.
A curved woven preform comprising:
- a plurality of weft fibers;
- a plurality of warp fibers interwoven with the plurality of weft fibers to form a base of the preform;
- wherein the base of the preform is curved with the warp fibers continuous across the length of the preform and some of the warp fibers are longer than other warp fibers;
- wherein a curvature of the woven preform is concave, the length of the warp fibers being shorter towards a concave surface of the curve of the preform than towards a convex surface of the curve of the preform, and wherein the curvature of the preform is formed by applying at least one set of mating clamps having a geometry including a first fiber path and a second fiber path, the first fiber path being longer than the second fiber path.
1 more element
A curved woven preform comprising:
- a plurality of weft fibers;
- a plurality of warp fibers interwoven with the plurality of weft fibers to form a base of the preform;
- at least one leg integrally woven with the base and curved along a length of the base,
- wherein a curvature of the woven preform is concave;
- wherein the base of the preform is curved with the warp fibers continuous across the length of the preform and some of the warp fibers are longer than other warp fibers;
- and
- wherein warp fibers forming the at least one leg are shorter towards a concave curve of the at least one leg than towards a convex curve of the at least one leg, and wherein the curvature of the preform is formed by applying at least one set of mating clamps having a geometry including a first fiber path and a second fiber path, the first fiber path being longer than the second fiber path.
4 more elements
Dependencies are inferred from the claim text.