US Patent 8950793 Semi trailor underrun protection

The device may have a plurality of upright supports where the supports may include a mounting plate with mounting openings, a plurality of vertical members that may be in non-welded communication with the extruded back mounting plate and a plurality of horizontal members where the vertical members provide strength and support to the supports. The horizontal under-run prevention beam may include mounting openings that correspond to the horizontal beam mounting openings and a removable reflective strip that correspond to reflective strip openings in the beam. The vertical and horizontal members may be stacked extruded rectangles of the desired widths and lengths.