SUBTERRANEAN DRAINAGE DEVICE

Title:

SUBTERRANEAN DRAINAGE DEVICE

Document Type and Number:

WIPO Patent Application WO2004061259

Kind Code:

A3

Abstract:

Watermimpervious, non-biodegradable, unitary drainage device with multi-directional rollup capability. The invention features a monolithic "sandwich" construction consisting of planar top and base sheets, set apart by an array of supports that are disposed between and integrally joined to the sheets. Selective and off-set through-cuts, in the top and bottom sheets, impart to the invention the multi-dimensional rollup capability. Rods, optionally hollow, are used as splines to connect two or more of the devices, so that their internal drain channels are in an efficient confluent alignment.

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Inventors:

PARKER ALTON F (US)

Application Number:

PCT/US2003/039362

Publication Date:

July 28, 2005

Filing Date:

December 11, 2003

Export Citation:

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Assignee:

PARKER ALTON F (US)

International Classes:

E02B11/00; E02D19/00; E02D31/02; E04F17/00; E21B; (IPC1-7): E02D19/00

Foreign References:

US5857297A	1999-01-12
US4246305A	1981-01-20

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