Road structure – process – or apparatus – Traffic steering device or barrier
Patent
1990-03-16
1991-06-25
Britts, Ramon S.
Road structure, process, or apparatus
Traffic steering device or barrier
404 15, E01E 1300
Patent
active
050262033
ABSTRACT:
A friction-reduction system for causing the front wheels of a terrorist vehicle to leave the ground during sideward deflection of a terrorist vehicle by an arresting system which includes a rigid immovable crash barrier positioned at one side of a driveway and a deflector positioned at the other side of the driveway. In one embodiment the friction-reduction system includes a transverse ridge or bump across the driveway just before the point of impact of the deflector such that the front wheels of the speeding vehicle leave the ground at the time of impact and following deflection. This minimizes the physical pressure on the deflector making it possible to provide a lighter and more efficient deflector and one which assures deflection of the vehicle. In another embodiment, a ramp with a transverse drop off is used in place of the ridge; with the ramp either rising or dropping away just ahead of the deflection point.
REFERENCES:
patent: 1357860 (1920-11-01), Goodrum
patent: 1649877 (1927-11-01), Walston
patent: 4367975 (1983-01-01), Tyers
patent: 4687370 (1987-08-01), Knowles
patent: 4759655 (1988-07-01), Gorlov
patent: 4818137 (1989-04-01), Gorlov
patent: 4923327 (1990-05-01), Gorlov
Britts Ramon S.
Connolly Nancy P.
Flexible Barricades Inc.
Tendler Robert K.
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