Module for forming drainage trenches in the ground

(19)

(11)

EP 0 952 257 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	22.03.2000 Bulletin 2000/12

(43)	Date of publication A2:
	27.10.1999 Bulletin 1999/43

(21)	Application number: 99201135.3

(22)	Date of filing: 12.04.1999

(51)	International Patent Classification (IPC)⁷: E02B 11/00

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

(30)

Priority:

23.04.1998 IT RE980046

(71)	Applicants:
	Borghi Azio - S.P.A. 42020 San Polo D'Enza (Reggio Emilia) (IT) Martinelli, Francesco 43100 Parma (IT)

(72)	Inventors:
	Borghi, Azio, c/o Borghi Azio - S.P.A. 42020 San Polo d'Enza (Reggio Emilia) (IT) Martinelli, Francesco 43100 Parma (IT)

(74)	Representative: Corradini, Corrado et al
	Studio Ing. C. CORRADINI & C. S.r.l. 4, Via Dante Alighieri 42100 Reggio Emilia 42100 Reggio Emilia (IT)

(54)	Module for forming drainage trenches in the ground

(57) 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.

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