Road structure – process – or apparatus – Traffic steering device or barrier
Patent
1985-06-27
1987-12-08
Novosad, Stephen J.
Road structure, process, or apparatus
Traffic steering device or barrier
404 7, 49 49, E01F 1300
Patent
active
047116080
ABSTRACT:
Apparatus and method of operation for controlling vehicular traffic entering or leaving a secured facility. The apparatus consists of a tire-puncturing spikes assembly, movable post assemblies, ditch/cover assemblies, fixed posts, a gate arm, and a safety hose & pressure switch assembly. Tire-puncturing spikes are mounted on a rotateable shaft imbedded in the roadway that will raise or lower the spikes in conjunction with the gate arm to control traffic. Movable posts can be raised or lowered to stop or permit traffic movement. Mechanically operated ditch covers can be opened to provide impassable traps for vehicles (or tanks). A gate arm operated in conjunction with the spikes will direct vehicles to stop before reaching raised spikes. A safety pressure switch and hose assembly is located immediately downstream of the spikes assembly and will automatically activate the entire apparatus into a "failsafe" mode if a vehicle passes over the hose while the spikes are in the raised position.
Fixed pipe barriers imbedded in concrete will channel vehicles over and prevent bypassing of the controllable system. A bullet-proof booth provides safety for the security guard. Integrated controls prevent unauthorized operation of the system, alert facility security in the event of danger, and automatically raise all barriers in the event of power failure or tampering. Mechanical power to operate all security barriers is provided from a compressed air system located away from the barriers, which includes emergency and backup sources of power that are activated automatically whenever the pressure in the primary source of power drops to predetermined levels.
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patent: 4332503 (1982-06-01), Hurst, Jr.
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patent: 4367975 (1983-01-01), Tyers
patent: 4490068 (1984-12-01), Dickinson
patent: 4554695 (1985-11-01), Rowland
Harrison David B.
Novosad Stephen J.
Odar Thomas J.
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