US Patent 7197991 Bullnose-edge structural member and method

A bullnose-edge structural member (12), comprising a laminated body (54) of two opposing fiber board sheets (56, 58) defining major planar surfaces sandwiching a corrugated paperboard intermediate layer having opposing sides (66, 68), and one of the major surfaces defining a pair of spaced-apart channels (70) extending parallel to the opposing sides, with the laminated body (54) folded along a line medial the channels whereby the major planar surface opposing the surface having the channels defines a bullnose edge (14) opposing the aligned sides. A method of making a bullnose-edge structural member is disclosed.