Patent ID: 6802170
Filing Date: 2004-10-12
Classification: E04C,Y10T

Abstract:
A box beam comprising: first and second allowance ends, first and second top portions that are substantially coplanar and spaced apart by a seam, first and second side portions, and a bottom portion; said first allowance end and said first side portion each depending from opposite edges of said first top portion in a substantially common direction at about a right angle to said first top portion; said second allowance end and said second side portion each depending from opposite edges of said second top portion in a substantially common direction at about a right angle to said second top portion; said first side portion extending between said first top portion and said bottom portion and being connected at about a right angle to one end of said bottom portion; said second side portion extending between said second top portion and said bottom portion and being connected at about a right angle to an opposite end of said bottom portion; said bottom portion being generally parallel with said first and second top portions; said bottom portion having a ridge formed therein and raised from said bottom portion generally toward said first and second top portions; wherein said first and second allowance ends are generally parallel and depend in substantially the same direction from said first and second top portions, respectively.