Roadway impact attenuator
AssigneeDynamics Research and Manufacturing, Inc.
InventorGrant W. Walker
Life of this patent
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Abstract
A roadway impact attenuator adapted to be installed between lanes on a highway or in advance of a barrier on the highway includes a number of substantially identical units each of which has a framework slidably resting on the ground or pavement, and spaced from the barrier or from a similar framework. An energy converting means is disposed between the barrier and the framework. The framework is related to the ground by a ground anchor secured thereto and releasably connected to the framework. Additionally, overlapped side panels are mounted generally horizontally along the sides of the framework, being secured thereto and being secured to similar panels on other frameworks in a telescoping relationship.
Claims7
A roadway impact attenuator adapted to be supported on the ground on which traffic advances in a predetermined direction comprising a framework, means for supporting said framework perpendicular to said direction and for sliding movement on the ground in said direction, a barrier perpendicular to said direction and separated from said framework to leave a space therebetween, a disintegrating energy converting means in said space and interposed between said barrier and said framework, a ground anchor, and means releasable by movement of said framework in said direction connecting said ground anchor to said framework.
Dependencies are inferred from the claim text.