The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 1976
Filed:
Jun. 26, 1973
Applicant:
Inventor:
Ernest Glaesener, Dudelange, LU;
Assignee:
Acieries Reunies de Burbach-Eich-Dudelange S.A. ARBED, Luxembourg, LU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E01F / ;
U.S. Cl.
CPC ...
256 131 ; 404-6 ; 256-1 ;
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.