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Low profile concrete road barrier
(United States. Patent and Trademark Office, 1992-10-20)
A low profile road barrier that minimizes obstruction to vision and the ramping and rolling of automobiles which may be comprised of one or more interconnected concrete barrier segments stationed along the road or cast in ...
Frame catcher adaptation for guardrail extruder terminal
(United States. Patent and Trademark Office, 2000-07-18)
Apparatus and methods for preventing penetration of vehicles by causing the guardrail extruder terminal to contact and engage the frame or chassis of vehicles in a collision. In preferred embodiments, a guardrail extruder ...