Patent ID: 8308882

Claim:
A three-dimensional hollow fiber component comprising: an integrated rib of a two dimensional web-like reinforcing material; a first sheet having first, second, third, fourth and fifth consecutive adjacent sheet sections, the first and fifth sections being end sections, the sheet being shaped so as to surround a first chamber such that the first and fifth sections overlap to form a top wall of the first chamber and are stitched to each other by at least one seam, wherein the second section forms a first side wall and the fourth section forms a second side wall opposite the first side wall and the third section forms a bottom wall, the first sheet being comprised of the web-like reinforcing material impregnated with hardened resin; and a second sheet having first, second, third, fourth and fifth adjacent consecutive sheet sections, the first and fifth sections being end sections, the sheet sections being shaped so as to surround a second chamber such that the first and fifth sections overlap to form a top wall of the second chamber and are stitched to each other by at least one seam, wherein the second section forms a first side wall and the fourth section forms a third side wall opposite the first side wall and the fourth section forms a bottom wall, the second sheet being comprised of the web-like reinforcing material impregnated with hardened resin, wherein the first side wall of the first chamber and the first side wall of the second chamber are stitched together using a plurality of compacting seams so as to form a single divider between the first and the second chambers, the compacting seams being in a form of a grid and covering the full height and length of the divider.