US4904113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Highway edgedrain
Assignee: Advanced Drainage Systems Inc
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Filing: 1987-08-18
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Granted: 1990-02-27
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Expires: 2007-08-18
Abstract
Abstract A highway edgedrain (20) is provided in the form of a flexible, flat, corrugated plastic tube (50) having a relatively oblongated cross-section, with apertures (58) associated with selected grooves (59) of the corrugation. The tube is enclosed in a porous fabric sheath (52). The two relatively flat sides or panels of the tube are separated from each other by a plurality of internal supports (60).
Inventors
- 👤 James B. Goddard
- 👤 Leon H. Zimmerman
- 👤 Larry L. Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:52
CPC Classifications
E; E02; E02B; E02B11/00; E01; E01F; E01F5/00; E02D; E02D31/00; E02D31/02
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
93 words
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.
Claim 2
Dependent Claim
93 words
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.
Claim 3
Dependent Claim
23 words
A hydraulic structure according to claim 1, wherein at least some cuspations of said first and second panels are secured to one another.
Claim 4
Dependent Claim
22 words
A hydraulic structure according to claim 1, wherein cuspations are in the shape of a polyhedron having a plurality of triangular faces.
Claim 5
Dependent Claim
33 words
A hydraulic structure according to claim 1, wherein said first and second panel are of the same dimension, with the height associated with said panels being greater than the distance between said panels.
Claim 6
Dependent Claim
28 words
A hydraulic structure according to claim 4, wherein the height associated with said panels is more than two and one-half times greater than the distance between said panels.
Claim 7
Dependent Claim
15 words
A hydraulic structure according to claim 1, wherein said tube is of an oblongate cross-section.
Claim 8
Dependent Claim
30 words
A hydraulic structure according to claim 6, wherein said apertures are of a rectilinear configuration having their longitudinal axes in the same plane as the longitudinal axes of said valleys.
Claim 9
Dependent Claim
17 words
A hydraulic structure according to claim 1, wherein said fibrous sheath is fabricated from a nonwoven fabric.
Claim 10
Dependent Claim
16 words
A hydraulic structure according to claim 8, wherein said sheath is fabricated from a geotextile material.
Claim 11
Dependent Claim
23 words
A hydraulic structure according to claim 9, wherein said geotextile material has a density which is greater than 3 ounces per square yard.
Claim 12
Dependent Claim
30 words
A hydraulic structure according to claim 8, wherein said first and second panels are secured to one another along the top and bottom of said panels throughout their entire length.
Claim 13
Dependent Claim
23 words
A hydraulic structure according to claim 8, wherein said sheath is continuous about said tube, being secured to itself by appropriate fastening means.
Claim 14
Dependent Claim
68 words
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.
Claim 15
Dependent Claim
68 words
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.
Claim 16
Dependent Claim
34 words
The hydraulic drain of claim 13 wherein said oblongate tube is elongated and is coilable about an axis parallel to the corrugations thereof, said tube being substantially rigid in directions perpendicular to said axis.
Claim 17
Dependent Claim
17 words
The hydraulic drain of claim 13 wherein said support means comprise spaced members secured between said panels.
Claim 18
Dependent Claim
62 words
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.
Claim 19
Dependent Claim
62 words
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.
Claim 20
Dependent Claim
79 words
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.
Claim 21
Dependent Claim
79 words
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.
Claim 22
Dependent Claim
38 words
A hydraulic structure according to claim 17, wherein at least one of said panels of said corrugated tube have a plurality of apertures in selected valleys of the tube arranged transversely to the longitudinal axis of the tube.
Claim 23
Dependent Claim
16 words
A hydraulic structure according to claim 18 wherein said tube is surrounded by a fibrous sheath.
Claim 24
Dependent Claim
15 words
A hydraulic structure according to claim 17, wherein said tube is of an oblongate cross-section.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-26 | 1993-08-28 | 1994-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-26 | 1997-08-28 | 1998-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-26 | 2001-08-28 | 2002-02-27 | $7700.00 | Window Closed / Lapsed |