Vehicle guardrail with metal core

Details Vehicle guardrail with metal core Vehicle guardrail with metal core

1973-06-26

1976-06-15

Taylor, Dennis L.

Fences

Highway guard

404 6, 256 1, E01F 1500

Patent

active

039632180

ABSTRACT:
A guardrail has a core formed of steel plate, sheet or strip having at least two planar sections lying in mutually intersecting planes. Several intersecting planar steel plates may be welded together in a star-shaped or box-girder configuration. A mass of nonporous synthetic-resin foam surrounds this core to protect it against corrosion. This mass also acts as a cushion and serves to stiffen the rail. The steel members have a thickness between 0.2 and 2.5 mm thick, and the synthetic-resin sheath is a polyurethane structure foam with a density of between 40 and 100 kg/m.sup.3.

REFERENCES:
patent: 685318 (1901-10-01), Bell
patent: 724462 (1903-04-01), Garrettson
patent: 1412096 (1922-04-01), Emperger
patent: 1526069 (1925-02-01), Irving
patent: 2895302 (1959-07-01), McKnight
patent: 3170967 (1965-02-01), Williams et al.
patent: 3303627 (1967-02-01), Mota
patent: 3404526 (1968-10-01), Thomas
patent: 3480493 (1969-11-01), Bauer et al.
patent: 3484509 (1969-12-01), Keller
patent: 3591144 (1971-07-01), Irving
patent: 3603562 (1971-09-01), Glaesener
patent: 3644168 (1972-02-01), Bonk et al.
patent: 3765360 (1973-10-01), Monfort

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