Anti-terrorism vehicle security barrier

Details Anti-terrorism vehicle security barrier Anti-terrorism vehicle security barrier

2008-01-22

2008-01-22

Hartmann, Gary S (Department: 3671)

Road structure, process, or apparatus

Traffic steering device or barrier

C049S049000, C049S131000

Reexamination Certificate

active

11235919

ABSTRACT:
A vehicle barrier is formed with a barrier gate mounted on a pair of opposing lift arms pivotally connected via pivot shafts to a support structure. A plurality of endless bands are looped around the opposing pivot shafts and positioned to pass through compartments in the barrier gate. The lift arms and the barrier gate may be fabricated from lightweight material, such as thin steel, aluminum or plastic, so that the stopping power of the vehicle barrier is provided by the anchored bands. In permanent or portable configurations, the lightweight barrier gate can be quickly raised by hydraulic cylinders, or other appropriate means, into a deployed position to interfere with the passage of a vehicle over the barrier. The anchoring of the bands at ground or below ground locations on both sides of the barrier provides stopping power without requiring massive barrier structures to be raised and lowered in use.

REFERENCES:
patent: 1628651 (1927-05-01), Burress
patent: 2336483 (1943-12-01), Hoover
patent: 3024549 (1962-03-01), Lubmann
patent: 3925929 (1975-12-01), Montgomery
patent: 3956853 (1976-05-01), Montgomery
patent: 4989835 (1991-02-01), Hirsh
patent: 5245787 (1993-09-01), Swenson et al.
patent: 5248215 (1993-09-01), Fladung
patent: 6062765 (2000-05-01), Dotson

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