US4904113A — Highway edgedrain

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.

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

Highway edgedrain

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