Prefabricated vertical earth drain with relief protrusions

Details Prefabricated vertical earth drain with relief protrusions Prefabricated vertical earth drain with relief protrusions

1999-04-19

2000-12-26

Bagnell, David

Hydraulic and earth engineering

Drainage or irrigation

Porous or apertured pipe, flume, or tileway

521695, E02B 1100, E02D 1900

Patent

active

06164868&

ABSTRACT:
A prefabricated vertical earth drain which is provided with an elongated corrugated flexible plastic core sheet with vertical and horizontal dimensions of extension and horizontal corrugations which provide continuous longitudinally extending drain channels that extend in the vertical direction. These drain channels are defined with curved corrugation bends and a series of longitudinally spaced relief protrusions are provided in the channels. In use, the entire structure is surrounded with a filter fabric. The relief protrusions assist in preventing the protrusion of filter fabric into the drain channels.

REFERENCES:
patent: 4749306 (1988-06-01), Demeny et al.
patent: 4943185 (1990-07-01), McGuckin et al.
patent: 5489462 (1996-02-01), Sieber
patent: 5820296 (1998-10-01), Goughnour

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