Patent Number: 6,254,063

Title: Energy absorbing breakaway steel guardrail post

Abstract: An improved breakaway steel guardrail post for use in dissipation of impact energy upon impact of the post having an upper post member and a lower post member, a connecting joint, and a mechanism connected to the upper and lower post members for controlling the energy dissipation of the guardrail post about the connecting joint at a predetermined rate. A first embodiment utilizes a cable restraint lopped through openings in the guardrail posts. Other embodiments included straps and fasteners designed to distort or fail at predetermined rates or strengths and combinations thereof.

Inventors: Rohde; John R. (Lincoln, NE), Reid; John D. (Lincoln, NE), Sicking; Dean L. (Lincoln, NE)

Assignee: Safety By Design, Inc.

International Classification: E01F 9/011 (20060101); E01F 9/018 (20060101); E01F 15/02 (20060101); E01F 15/04 (20060101); E01F 015/00 ()

Expiration Date: 07/03/2018