Vehicle parking or passageway security barrier

Details Vehicle parking or passageway security barrier Vehicle parking or passageway security barrier

1993-10-25

1995-12-19

Britts, Ramon S.

Road structure, process, or apparatus

Traffic steering device or barrier

404 9, 74 8915, E01F 1300

Patent

active

054763380

ABSTRACT:
A bollard type security barrier apparatus for use in controlling ingress and egress to controlled areas. The apparatus if of simple design, is easily installed and includes a remotely operated positive drive mechanism for raising and lowering the bollard which is telescopically mounted within a sealed casing adapted to be mounted beneath the ground. The drive mechanism and the bollard are readily removable from the subterranean casing for repair or replacement; and, for certain applications, the upper portion of the bollard can be illuminated.

REFERENCES:
patent: 3233352 (1966-02-01), Projector et al.
patent: 4635492 (1987-01-01), Uebelhart
patent: 4739669 (1988-04-01), Yokose et al.
patent: 4765651 (1988-08-01), Unger
patent: 4919563 (1990-04-01), Stile
patent: 4995278 (1991-02-01), Huang

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