Stitch-reinforced sandwich panel and method of making same
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United States of America Patent
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-
Feb 13, 2001
Grant Date -
N/A
app pub date -
Oct 3, 1997
filing date -
Oct 4, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A stitch-reinforced sandwich panel with improved flatwise tensile strength, improved skin to core peel strength, and substantially reduced damage propagation from impact includes a relatively non-compressible foam core, a dry reinforcing layer of fibers placed on each of the opposite faces of the foam core; and high strength thread stitched with a high density of stitches over the entire panel through each of the reinforcing layers and the foam core. The skins are then impregnated with a resin system to complete the structure.
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Family
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Cited Art Landscape
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