Vehicle barricade or maximum security barrier

Details Vehicle barricade or maximum security barrier Vehicle barricade or maximum security barrier

1984-03-27

1986-03-11

Kannan, Philip C.

Movable or removable closures

With traffic director or controller; e.g., one-way

49387, E01F 1300

Patent

active

045745234

ABSTRACT:
A vehicle barricade has two concrete walls contiguously disposed along either side of a roadway for defining a checkpoint. A shaft is pivotally secured to the roadway and extends transversely between the concrete walls. A barrier plate is pivotal with the shaft between a first horizontal position and a second angularly disposed position adapted for preventing vehicle passage through the checkpoint by engagement of the barrier plate with the vehicle. A shaft retaining system is provided for preventing removal of the shaft and the barrier plate therewith from the roadway surface.

REFERENCES:
patent: 1949295 (1934-02-01), Dean
patent: 3478464 (1969-11-01), Appel
patent: 3626638 (1971-12-01), Lafferty
patent: 4152871 (1979-05-01), Kardash, Jr.
patent: 4354771 (1982-10-01), Dickinson
patent: 4490068 (1984-12-01), Dickinson

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