Irrigation tubing
First Claim
1. An elongated irrigation tube which has a plastic or polymer peripheral wall in which there are a series of dispensing holes leading from the interior of said tubing to the exterior of said tubing in which the improvement comprises:
- said wall includes a body of plastic material containing an effective amount of a root growth inhibitor to tend to preclude root growth within and adjacent to said holes,said body being secured to said walleach of said holes extending through said plastic material so that water dispensed from the interior of said tube passes through said plastic material.
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Accused Products
Abstract
In accordance with the disclosed invention a desirable, elongated irrigation tube having a plastic or polymer peripheral wall in which there are a series of dispensing holes leading from the interior of said tubing to the exterior of said tubing is constructed so as to include at least one of the following: (1) all of said holes having a cross-sectional shape along a section taken perpendicular to the length of said holes such that the ratio of the length of the perimeter of the interior of the wall of each hole to the cross-sectional area of the hole is greater than that of a circle; (2) that said wall includes a body of a plastic material containing an effective amount of a root inhibitor to preclude root growth within said holes and adjacent to said holes at the exterior of said wall; and (3) said wall consisting of an even number of elongated panels and line like areas of reduced thickness which are more flexible than said panels joining said panels, said areas permitting said tubing to automatically fold flat when coiled.
60 Citations
14 Claims
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1. An elongated irrigation tube which has a plastic or polymer peripheral wall in which there are a series of dispensing holes leading from the interior of said tubing to the exterior of said tubing in which the improvement comprises:
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said wall includes a body of plastic material containing an effective amount of a root growth inhibitor to tend to preclude root growth within and adjacent to said holes, said body being secured to said wall each of said holes extending through said plastic material so that water dispensed from the interior of said tube passes through said plastic material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An elongated irrigation tube which has a plastic or polymer peripheral wall in which there are a series of dispensing holes leading from the interior of said tubing to the exterior of said tubing in which the improvement comprises:
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said wall includes a body of a plastic material containing an effective amount of a root growth inhibitor to tend to preclude root growth within and adjacent to said holes, said body is a strip of plastic material extending the length of said tube, said strip being located on the exterior of said wall, said holes extending through said strip. - View Dependent Claims (10)
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11. An elongated irrigation tube which has a plastic or polymer peripheral wall in which there are a series of dispensing holes leading from the interior of said tubing to the exterior of said tubing in which the improvement comprises:
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said wall includes a body of a plastic material containing an effective amount of a root growth inhibitor to tend to preclude root growth within and adjacent to said holes, said body is a strip of plastic material extending the length of said tube, said strip is located within the interior of said tube on said wall, said holes extending through said strip. - View Dependent Claims (12)
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13. An elongated irrigation tube which has a plastic or polymer peripheral wall in which there are a series of dispensing holes leading from the interior of said tubing to the exterior of said tubing in which the improvement comprises:
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said wall includes a body of a plastic material containing an effective amount of a root growth inhibitor to tend to preclude root growth within and adjacent to said holes, said body is a strip of plastic material extending the length of said tube, said strip being located completely within said wall, said holes extending through said strip. - View Dependent Claims (14)
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Specification