EP0952257A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Module for forming drainage trenches in the ground
Assignee: Borghi Azio - SpA
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Filing: 1999-04-12
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Granted: —
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Expires: 2019-04-12
Abstract
Abstract The module (10) comprises: a mass (11) of loose, relatively small and light solid objects, such as to define a body with drainage properties comparable to or better than gravel, a fibre layer (15) covering the mass of objects and possessing filtering properties such as to enable water to pass but to retain earth particles, and a metal mesh cage (21) able to retain the mass of loose objects together and to give the module a constant determined geometrical shape.
Inventors
- 👤 Azio c/o Borghi Azio - S.P.A. Borghi
- 👤 Francesco Martinelli
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 16:24
CPC Classifications
E; E02; E02B; E02B11/00; E02B11/005
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
84 words
A module for forming drainage trenches in the ground, characterised by comprising: a mass of loose, relatively small and light solid objects, such as to define a body with drainage properties comparable to or better than gravel, a fibre layer covering the mass of objects and possessing filtering properties such as to enable water to pass but to retain earth particles, a metal mesh cage able to retain the mass of loose objects together and to give the module a constant determined geometrical shape.
Claim 2
Dependent Claim
33 words
A module as claimed in claim 1, characterised by having an overall outer shape comprising at least one pair of opposing vertical flat faces, which are parallel and substantially identical to each other.
Claim 3
Dependent Claim
31 words
A module as claimed in claim 1, characterised in that the constituent solid objects of said mass 11 have a maximum dimension of 10-30 mm and are constructed of synthetic resin.
Claim 4
Dependent Claim
26 words
A module as claimed in claim 3, characterised in that said solid objects are of foamed polyurethane having a density of 5-20 kg per cubic metre.
Claim 5
Dependent Claim
24 words
A module as claimed in claim 1, characterised in that said fibre material layer is formed of a non-woven fabric of unrottable synthetic fibre.
Claim 6
Dependent Claim
61 words
A module as claimed in claim 1, characterised by comprising a thin impermeable membrane applied to said metal mesh cage to completely cover its lower face (B1) and at least the lower portion of two lateral faces (F2) while leaving the other two lateral faces (F1) uncovered, in order to form a water-conveying discharge channel when the modules are mutually combined.
Claim 7
Dependent Claim
64 words
A method for constructing drainage trenches in the ground, using modules claimed in claim 1, characterised by comprising: - forming a trench in the ground, - then inserting a plurality of modules and placing them in successive mutual contact by bringing a face (F1) of one into contact with a face (F1) of the next, - finally earthing-up to embed the row of modules.
References Cited (Backward Citations)
No citation records indexed.
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