Drainage geocomposite and its method of manufacture

Details Drainage geocomposite and its method of manufacture Drainage geocomposite and its method of manufacture

2005-06-29

2009-11-17

Lagman, Frederick L (Department: 3672)

Hydraulic and earth engineering

Drainage or irrigation

Porous or apertured pipe, flume, or tileway

C405S043000, C405S044000, C405S045000, C405S050000

Reexamination Certificate

active

07618213

ABSTRACT:
This invention concerns a geocomposite (1, 2) that includes a drainage sheet (4) onto which are placed perforated, girdled mini-drains (5) parallel to each other, and at least one filtration sheet (31) covering the perforated, girdled mini-drains (5), characterized in that the drainage sheets (4) and the filtration sheets are connected together by the needlepunching technique.

REFERENCES:
patent: 4490072 (1984-12-01), Glasser
patent: 5475904 (1995-12-01), Le Roy et al.
patent: 6312190 (2001-11-01), Goughnour
patent: 6315493 (2001-11-01), Malone et al.
patent: 6648550 (2003-11-01), Parker
patent: 6702517 (2004-03-01), Goddard
patent: 7465390 (2008-12-01), Potts
patent: 0 962 754 (1999-12-01), None
patent: 2 746 424 (1997-09-01), None

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