Earth drains

Details Earth drains Earth drains

E - Fixed Constructions

02

B

E02B 11/00 (2006.01) E02D 3/10 (2006.01) E02D 31/02 (2006.01)

Patent

CA 2098263

ABSTRACT An earth drain comprising a core consisting of an elongated flexible web having on at least one surface thereof, and preferably on both surfaces, an array of discreet projections spaced transversely across the width of the web, and longitu- dinally in the lengthwise orientation of the web. The array of projections is interrupted by a plurality of elongated projection- free zones extending in the longitudinal direction of the web, and spaced transversely across the width of the web. A filter of sheet-like water permeable material encases the core, and is adapted to be maintained in spaced relationship to the web by the free ends of the projections thereon.

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