Underground vehicle barricade

Details Underground vehicle barricade Underground vehicle barricade

1987-09-04

1989-05-02

Massie, Jerome W.

Road structure, process, or apparatus

Traffic steering device or barrier

49 33, 49 49, 49131, E01F 1300

Patent

active

048263494

ABSTRACT:
A vehicle barricade comprises a frame having an open top and bottom, side, front and rear portions. A barrier plate is pivotally associated with the frame for being pivoted between a first and a second position. A cylinder and piston assembly pivots the barrier plate between the positions. A first stop extends from and is carried by the barrier plate. A second stop is connected to the frame and is engageable with the first stop for preventing said barrier plate from pivoting beyond said second position. A plurality of tubes extend forwardly from the front portion and prevent the frame from moving in the event the barrier plate is impacted by a vehicle.

REFERENCES:
patent: 1649877 (1927-11-01), Walston
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patent: 2714735 (1955-08-01), Watson
patent: 3626638 (1971-12-01), Lafferty
patent: 3805448 (1974-04-01), Carr et al.
patent: 4152871 (1979-05-01), Kardash, Jr.
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patent: 4455703 (1984-06-01), Fromme et al.
patent: 4490068 (1984-12-01), Dickinson
patent: 4574523 (1986-03-01), Nasatka
patent: 4624600 (1986-11-01), Wagner et al.
patent: 4627763 (1986-12-01), Roemer et al.
patent: 4705426 (1987-11-01), Perea

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