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Thrie-beam terminal with breakaway post cable release
(United States. Patent and Trademark Office, 1996-08-20)
An end treatment for a thrie-beam type guardrail and safety device specifically oriented toward trucks, vans and other utility vehicles having high profiles and centers of gravity. A slotted thrie-beam terminal is featured ...
Slotted rail terminal
(United States. Patent and Trademark Office, 1995-04-18)
A slotted rail terminal for highway guardrails. The rail of the terminal contains at least one slotted section extending along the rail and having at least one longitudinal slot of a size sufficient to reduce the ability ...
Thrie-beam terminal with breakaway post cable release
(United States. Patent and Trademark Office, 1996-04-02)
An end treatment for a thrie-beam type guardrail and a safety device specifically oriented toward trucks, vans and other utility vehicles having high profiles and centers of gravity. A slotted thrie-beam terminal is featured ...
Apparatus and methods for strengthening guardrail installations
(United States. Patent and Trademark Office, 2003-06-10)
Devices and methods for strengthening the upper portions of the support posts for guardrails and guardrail end treatments against the forces that are imparted to the post during an impact. The upper portions of support ...
Slot guard for slotted rail terminal
(United States. Patent and Trademark Office, 2002-08-20)
Slot guards for a slotted rail terminals are described having a central section and a pair of wing portions that are angularly disposed with respect to the central portion. The wing portions are folded away from the plane ...