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US 4,062,521 AGranted
Safety barrier which is especially useful for motorway and a method of manufacture of the said safety barrier
OwnerJoel Paul Moreauinventor
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OwnerJoel Paul Moreauinventor
Estimating the term…
The invention relates to road safety barriers, especially for highways, and of the kind comprising a plurality of modules coupled to each other by at least one linear element which may be under mechanical tension, the modules being composed of a material capable of bursting under an internal tension due to the linear elements which pass through the modules and are embedded in the mass of the modules, whereby the module struck by a vehicle out of control bursts, possibly together with the neighboring modules. The assembly of modules and linear elements is not fixed on the ground but is free to slide laterally under the impact of a vehicle. The constituent material of the modules may comprise a mixture of a synthetic or natural plastic material and a binder consisting of cement, mortar or plaster, and the linear elements may be formed by steel cables or ropes, or chains of links, the links being formed from the metal reinforcing belts of pneumatic tires. The invention also covers a method of manufacture of the safety barrier on the site of its actual installation.
A highway safety barrier comprising a plurality of unanchored slidable modules, each having a mass of material designed to burst in response to internal tension rather than impact, and means for creating an internal tension in a module, upon movement of the module by a vehicle to cause the module to burst upon such movement, said means comprising, at least one common linear element fixed to the material of each module and which element is subject to tension upon movement of a module, and said linear element passing through and connecting the respective modules, so that at least the module struck by a vehicle will burst as a result of the internal tension created by the linear element in response to the impact.
Dependencies are inferred from the claim text.