Movable barrier

Details Movable barrier Movable barrier

1984-05-14

1986-12-16

Leppink, James A.

Road structure, process, or apparatus

Traffic steering device or barrier

404 9, 404 13, 256 131, 285261, E01F 1500

Patent

active

046293574

ABSTRACT:
A movable traffic barrier for dividing adjacent lanes of traffic in a roadway which includes a number of hollow cylindrical barriers laid end to end and projecting above the roadway, and a cable for rotating said cylindrical barriers to position them on the roadway.

REFERENCES:
patent: 2927513 (1960-03-01), Dove
patent: 3002269 (1961-10-01), Hopkins
patent: 3245327 (1966-04-01), Wasley
patent: 4062521 (1977-12-01), Moreau

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