Security gate

Details Security gate Security gate

1984-09-17

1986-03-18

Novosad, Stephen J.

Road structure, process, or apparatus

Traffic steering device or barrier

404 11, 49 49, E01F 1300

Patent

active

045765090

ABSTRACT:
A crash resistant vehicle barrier that can be opened to pass traffic and closed to bar traffic even if the vehicle crashes into the barrier. The barrier is pivotable about a horizontal axis in the roadway into and out of a pit below the roadway. The barrier includes a counterweight for ease of operation.

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patent: 4354771 (1982-10-01), Dickinson
patent: 4490068 (1984-12-01), Dickinson

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