Patent ID: 6079165
Filing Date: 2000-06-27
Classification: E04G,E04H

Abstract:
An apparatus, which comprises:(a) at least one pair of spaced apart, outermost flanges;(b) an intermediate section extending to and meeting with the spaced apart, outermost flanges, wherein the apparatus has a length between first and second ends of the intermediate section meeting the spaced apart flanges; and(c) a first plane tangent to respective junctions between the intermediate section and the spaced apart, outermost flanges, wherein an apex portion of the intermediate section between the junctions is spaced from the first plane and wherein the first plane does not intersect any part of the apparatus except tangent to the apparatus at the junctions where the intermediate section meets the spaced apart, outermost flanges, wherein the apparatus is symmetrical along a second plane bisecting the intermediate section and extending to the first and second ends.