Security barrier

Details Security barrier Security barrier

2007-07-03

2007-07-03

Hartmann, Gary S. (Department: 3671)

Road structure, process, or apparatus

Traffic steering device or barrier

C049S049000

Reexamination Certificate

active

10874787

ABSTRACT:
A barrier for stopping the progress of vehicles, comprising a pivoted barrier adapted to pivot about a non-vertical axis from a first position generally alongside a carriageway to a position where it at least partially blocks the carriageway, and adapted to move between the positions under the influence of gravity.

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