Woven textile fabric and innerduct having multiple-inserted filling yarns
AssigneeMilliken & Company
InventorDavid D. Morris
Life of this patent
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Abstract
An innerduct for segregating cables in a conduit is provided wherein the innerduct is constructed from one or more strip-shaped lengths of a woven textile fabric and configured to provide multiple longitudinal compartments for the cables, and the textile fabric has a warp of monofilament yarn ends and a filling of a combination of monofilament and multifilament yarn picks, with the multifilament yarn picks being multiple-inserted yarns.
Claims9
An innerduct for a cable, comprising one or more strip-shaped lengths of woven textile fabric configured to create a flexible, longitudinal compartment for enveloping a cable, wherein the woven textile fabric is in a plain weave construction and comprises:
- a plurality of warp yarns, wherein the warp yarns are monofilament warp yarns, and wherein the warp yarns have a warp crimp of less than 5%, as measured by ASTM D3883-Standard Test Method for Yarn Crimp and Yarn Take-Up in Woven Fabrics;
- and,
- a plurality of filling yarns interwoven with the warp yarns, wherein the filling yarns consist of a repeating pattern of picks of monofilament yarns and multiple-inserted multifilament yarns, wherein the multifilament yarns contain between 30 and 110 individual filaments, wherein the arrangement of monofilament yarns to multiple-inserted multifilament yarns is selected from the group consisting of 1:1, 1:2, 1:3, 2:3, 3:4, and 3:5, wherein at least one-fourth of the picks of the filling yarns are multiple-inserted multifilament yarns, and wherein the multiple-inserted multifilament yarns pass successively over and under every warp yarn together.
An apparatus comprising:
- (a) a conduit;
- (b) one or more strip-shaped lengths of woven textile fabric configured to create a flexible, longitudinal compartment for enveloping a cable, wherein the woven textile fabric is in a plain weave construction and comprises:
- a plurality of warp yarns, wherein the warp yarns are monofilament warp yarns, and wherein the warp yarns have a warp crimp of less than 5%, as measured by ASTM D3883-Standard Test Method for Yarn Crimp and Yarn Take-Up in Woven Fabrics;
- and,
- a plurality of filling yarns interwoven with the warp yarns, wherein the filling yarns consist of a repeating pattern of picks of monofilament yarns and multiple-inserted multifilament yarns, wherein the multifilament yarns contain between 30 and 11 individual filaments, wherein the arrangement of monofilament yarns to multiple inserted multifilament yarns is selected from the group consisting of 1:1, 1:2, 1:3, 2:3, 3:4, and 3:5 wherein at least one-fourth of the picks of the filling yarns are multiple-inserted multifilament yarns, and wherein the multiple-inserted multifilament yarns pass successively over and under every warp yarn together;
- and
- (c) a cable positioned in the longitudinal compartment.
Dependencies are inferred from the claim text.