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04-10-2019

SAFETY BOSSED MEMBRANE FOR LANDFILLS

SAFETY BOSSED MEMBRANE FOR LANDFILLS (© European Patent Office)

Safety bossed membrane (10a, 10b) for landfills, mines or tunnels, which enables drainage and waterproofing under heavy loads, consisting of a plastic sheet with small-sized hollow bosses (100), arranged in a regular pattern with a density higher than 25000 bosses/m 2 ; they have a combined shape, with a body (101) shaped as a truncated pyramid and a head (102) in the form of a deformable spherical cap, which are interlocked and connected to each other in such a way as to be progressively yielding, to uniformly redistribute the loads, to facilitate drainage and to prevent cracks on the interface layers. The head (102) has on the inside a progressive reduction in the thickness of the material, like a neck (111), that makes it yielding in a uniform and progressive way, while the base (103) is stiffened. In a variant of the invention (10b), for steep slopes, the lower surface is provided with aligned non-slip projections (116) between the openings (108).

Document: EP3467208A1
Click here for the full patent text at DEPATISnet [PDF]
Published patent application
Disclosure date: 10-04-2018
Publication date: 04-10-2019
Applicant: TEMA TECH AND MATERIALS SRL, IT
Inventor: BUSATTA NICOLA, IT ; CAIS FEDERICO, IT


© European Patent Office. This information was obtained from the espacenet of the European Patent Office. There is no guarantee of its correctness or curency. For additional information, please use the research at espacenet. It is possible to determine the current legal and procedural status of patents and utility patents/models at http://worldwide.espacenet.com/ kfree of charge.

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