Patent ID: 6451447
Filing Date: 2002-09-17
Classification: B21D,B29K,B29L,B60R,F01N,F16L,G10K,Y10T

Abstract:
A multilayer panel having a foil preform including at least three layers, the multilayer panel comprising:a structural layer, where the at least three layers of the foil preform are compressed and tensioned such that the at least three layers provide structural rigidity and strength for the multilayer panel; an edge proximate the structural layer where an end of the structural layer is rolled to form the edge in order to increase the structural rigidity and the strength of the multilayer panel; an insulating layer in combination with the structural layer, the insulating layer including at least two layers where the at least two layers include embossments therein such that the at least two layers are spaced from one another, thereby providing insulative properties to the multilayer panel; and wherein the structural layer is tensioned by stretching a portion of the structural layer.