Vehicular crash attenuator

Vehicle fenders – Buffer or bumper type – Bumper having impact force absorbing means directly...

Reexamination Certificate

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Details

C404S006000, C256S013100, C188S377000

Reexamination Certificate

active

07438337

ABSTRACT:
A truck mounted attenuator (TMA) is constructed to minimize length during use in a horizontal position and height in a vertical transport position, as well as to minimize wind resistance and buffeting at highway speeds. A modular construction is employed, so that only damaged portions of the TMA can be removed and replaced in the field after a vehicle impact. The TMA comprises a plurality of outwardly curved tubular structural members which are designed to buckle upon application to the TMA of forces resulting from vehicular impact. The rigid tubes buckle at a high initial force, then proceed to crush at a lower force once the sides have buckled outwardly sufficiently to protect vehicle occupants during the critical first two feet of travel after impact. This design also provides increased protection for errant vehicles which impact the TMA device from an angle (i.e. “coffin corner” impact).

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patent: WO 94/05527 (1993-09-01), None

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