Guard rail
OwnerAnton Hulekinventor
Life of this patent
Estimating the term…
Abstract
A guard rail for use alongside a road or lane comprises two profiled side portions on opposite sides of the guard rail. Said side portions are joined by a gridlike web.
Claims5
In a guard rail for use alongside a road, which comprises a sheet material profiled to form two substantially U-shaped side portions extending longitudinally of the guard rail and a web interconnecting the side portions, the two side portions and the web defining a substantially U-shaped recess therebetween and the side portions projecting substantially perpendicularly from a plane defined by the web, the U-shaped side portions having the base of the U radially spaced from and substantially parallel to said plane, the improvement of the web being a grid.
In a process of manufacturing a guard rail, which comprises the step of profiling a sheet material to form two substantially U-shaped side portions extending longitudinally of the guard rail and a web interconnecting the side portions, the two side portions and the web defining a substantially U-shaped recess therebetween and the side portions projecting substantially perpendicularly from a plane defined by the web, the U-shaped side portions having the base of the U radially spaced from and substantially parallel to said plane, the improvement of perforating the web and expanding the perforated web to form an expanded mesh between the side portions.
Dependencies are inferred from the claim text.