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Yielding post guardrail safety system incorporating thrie beam guardrail elements
(United States. Patent and Trademark Office, 2013-08-06)
A guardrail safety system includes a guardrail beam operable to contain and redirect an errant vehicle to prevent the vehicle from leaving a roadway. At least a portion of the guardrail beam includes a thrie beam. A support ...
Tension guardrail terminal
(United States. Patent and Trademark Office, 2014-11-11)
A terminal portion of a guardrail safety system includes a terminal portion of a guardrail beam having a downstream end and upstream end. The terminal portion of the guardrail beam slopes from a height appropriate for ...
Tension guardrail terminal
(United States. Patent and Trademark Office, 2011-02-08)
A terminal portion of a guardrail safety system includes a terminal portion of a guardrail beam having a downstream end and upstream end. The terminal portion of the guardrail beam slopes from a height appropriate for ...
Guardrail safety system for dissipating energy to decelerate the impacting vehicle
(United States. Patent and Trademark Office, 2010-04-13)
In accordance with a particular embodiment of the present invention, an end treatment of a guardrail safety system includes a terminal portion of a guardrail beam that has a downstream end and an upstream end. The terminal ...