Patent ID: 6688070
Filing Date: 2004-02-10
Classification: E04C

Abstract:
A structural member comprising:a triangular shaped member having an internal region and a first, a second, and a third internal vertex, wherein a rectangular sheet having a longitudinal axis, is folded around the longitudinal axis forming a first, a second, a third and a fourth sheet, wherein the first and the second sheets are a first and a second planar side that form two sides of the triangular shape, and wherein the third and the fourth sheets comprise a first and a second curved component, each having a concave inner surface and a convex outer surface, wherein the first and the second curved components are folded into the internal region of the triangular shape so that the outer surface of the first curved component joins to the outer surface of the second curved component thereby forming the third side of the triangular shape, and wherein each planar side, having an outer surface on the outside of the member and an inner surface on the inside of the member, and having a longitudinal axis in the same direction as the longitudinal axis of the triangular shape, further comprises a plurality of indentations spaced along the longitudinal axis of each planar side.