Highway edgedrain
AssigneeAdvanced Drainage Systems, Inc.
InventorsJames B. Goddard, Leon H. Zimmerman, Larry L. Martin
Life of this patent
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Abstract
A hydraulic structure is provided in the form of a flexible, flat, corrugated plastic tube having a relatively oblongated cross-section, with apertures associated with the grooves of the corrugation. The tube is enclosed in a geotextile sheath. The two relatively flat sides or panels of the tube are separated from each other by a plurality of pairs of cuspations, which project inwardly from the panel surface. Cuspations from the opposing panels are secured to one another thereby providing increased structural integrity.
Claims20
A hydraulic structure comprising a flexible, corrugated tube having alternating annual peaks and valleys, said tube surrounded by a fibrous sheath
- said tube having first and second relatively flat opposing spaced corrugated panels
- said panels of said corrugated tube having a plurality of apertures in selected valleys of the tube arranged transversely to the longitudinal axis of the tube, and
- means extending between said panels within said tube for supporting said panels in a spaced relation, said means comprising inwardly projecting cuspations located on said first panel opposite cuspations on said second panel.
A hydraulic drain structure comprising a corrugated oblongate tube having a series of peaks and valleys, said tube having relatively flat opposed spaced corrugated panels, a plurality of apertures in the valleys of said spaced panels inwardly projecting means within said tube located on at least one of said spaced panels for supporting said panels in a spaced relation, and a continuous porous web disposed around said tube.
A hydraulic drain comprising a corrugated oblongate tube having a series of peaks and valleys, said tube having relatively flat opposed spaced corrugated panels, inwardly projecting spaced support means within said tube located on at least one of said panels for supporting said panels in a spaced relation, said tube being elongated and coilable about an axis parallel to the corrugations thereof.
A hydraulic structure comprising a flexible, corrugated tube having alternating annular peaks and valleys, said tube having first and second relatively flat opposing spaced corrugated panels, and
- means extending between said panels within said tube for supporting said panels in a spaced relation, said means extending between said panels within said tube for supporting said panels in a spaced relation, said means comprising inwardly projecting cuspations located on at least one of said relatively flat opposing spaced corrugated panels.
Dependencies are inferred from the claim text.