Patent ID: 6187411
Filing Date: 2001-02-13
Classification: B29C,B32B,Y10T

Abstract:
A stitch-reinforced sandwich panel, comprising:a foam core having a pair of opposite first and second faces;first and second skins of fiber reinforcing material respectively covering the first and second faces of the foam core; anda reinforcing thread stitched through each of the skins and through the foam core to form stitches arranged in a generally regular pattern over substantially the entire faces of the foam core, the stitching joining the skins and the core together to form a stitch-reinforced sandwich panel;wherein the foam core is formed of a plurality of discrete foam pieces that are spaced apart to form intervening spaces therebetween, and the first and second skins are in direct contact with each other and are stitched directly to each other in the intervening spaces between the discrete foam pieces.