Movable roadway barrier

Details Movable roadway barrier Movable roadway barrier

1985-07-15

1986-12-30

Novosad, Stephen J.

Road structure, process, or apparatus

Traffic steering device or barrier

404 9, E01F 1300, E01F 1500

Patent

active

046325980

ABSTRACT:
An elongated roadway barrier having an upright wall attached to a base support adapted to engage a roadway surface is provided with retractable wheels which are lowered simultaneously with the application of a lateral force to the barrier using a cable system attached to drive motors located proximate the side of the roadway or using a self-propelled drive mounted in the barrier.

REFERENCES:
patent: 2931279 (1960-05-01), Wiswell
patent: 3245327 (1966-04-01), Wasley
patent: 3391620 (1968-07-01), Mahoney
patent: 3958840 (1976-05-01), Ferrari
patent: 4004857 (1977-01-01), Eschen, Jr.
patent: 4017200 (1977-04-01), Woods, Jr.
patent: 4474503 (1984-10-01), Booth et al.
patent: 4498803 (1985-02-01), Quittner
patent: 4500225 (1985-02-01), Quittner

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