Patent Number: 6,308,809

Title: Crash attenuation system

Abstract: A crash attenuation system having an impact head, and energy absorption mechanism. The energy absorbing mechanism has a mandrel for rupturing thin-walled tubes in a controlled rupture to absorb impact forces from a colliding vehicle. A frame may be used to mount the system to a truck, trailer, guardrail, median barrier end treatment, or a crash cushion. Stress concentrators may be incorporated into the tubes and the mandrels to selectively control rupturing and energy dissipation.

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

Assignee: Safety By Design Company

International Classification: F16F 7/12 (20060101); F16F 007/12 ()

Expiration Date: 10/30/2018