Patent ID: 7194846
Filing Date: 2007-03-27
Classification: E04B,E04C,Y10T

Abstract:
1. A method of manufacturing a structural panel such that it is self expanding from a compressed condition to an expanded substantially incompressible condition, comprising the steps of: providing an outer sheet of material, providing a plurality of elongated dividers having fold lines therealong such that the dividers can be folded in either direction along said fold lines, said dividers being made of glass fibers that are bonded together with a mixture of thermoset and thermoplastic resin such that the dividers are biased toward a flat condition even after having been folded, and securing the dividers to the outer sheet along one side thereof in closely adjacent relationship such that when the dividers are folded in a first direction along said fold lines the panel can be compressed with the dividers in closely adjacent relationship to said outer sheet and when folded in an opposite direction the dividers abut adjacent dividers to reinforce the dividers rendering the panel substantially incompressible.