Patent ID: 6895722
Filing Date: 2005-05-24
Classification: E04B

Abstract:
1. A modular structural panel unit for construction of a space-enclosing or area-covering structure comprising: a plurality of substantially similar profiled sheets of flat, rigid, foldable material, wherein: (a) each said sheet of material has a series of longitudinal fold lines spaced from, and substantially parallel to, each other to form a first hollow box-like beam structure of polygonal cross section having at least two substantially parallel walls that are spaced from each other when folded along said lines and one of said walls forms an outer surface; (b) said box-like beam has opposed end face, planes mitered at angles appropriate to the number of sides of said structural panel unit; (c) one mitered end of said first box-like beam is substantially open and configured to overlap a corresponding opposite end of a second, substantially identical box-like beam structure, and the opposite mitered end of said first beam is substantially open and configured to engage a corresponding opposite end of a second, substantially identical box-like beam structure; and (d) a plurality of similar box-like beams are conjoined and interlocked by corresponding mating tabs and slots to form said structural panel unit.