Partial float weave fabric

Patent metadata

Field	Value
Publication number	US-11795587-B2
Application number	US-202117235339-A
Country	US
Kind code	B2
Filing date	Apr 20, 2021
Priority date	Nov 24, 2015
Publication date	Oct 24, 2023
Grant date	Oct 24, 2023

Abstract

An innerduct for a cable containing one or more strip-shaped lengths of woven textile fabric configured to create a flexible, longitudinal compartment for enveloping a cable. The woven fabric comprises a plurality warp yarns and a plurality of picks of weft yarns, the weft yarns contain a repeating first weft pattern of at least one monofilament yarn and optionally at least one single-inserted multifilament yarn. The woven fabric contains an alternating pattern containing first weave zones and partial float weave zones. The warp yarns in the first weave zone pass successively over and under each adjacent weft yarn and at least a portion of the warp yarns in the partial float zone float over some adjacent weft yarns.

First claim

What is claimed is:

1. A woven fabric comprising an alternating pattern containing first weave zones and partial float weave zones, wherein the woven fabric comprises:
a plurality warp yarns arranged into groupings of warp yarns, wherein each grouping contains between 2 and 10 warp yarns; and,
a plurality of picks of weft yarns;
wherein in each first weave zone the picks of weft yarns comprise a repeating first weft pattern of at least one monofilament yarn and at least one single-inserted multifilament yarn, wherein within the first weave zones each warp yarn passes successively over and under alternating picks of weft yarns forming a plain weave,
wherein in each partial float zone the picks of weft yarns within the partial float weave zone comprise a repeating second weft pattern of at least one monofilament yarn and at least one single-inserted multifilament yarn,
wherein only a portion of the warp yarns within at least a portion of the warp groupings float over 3 weft yarns including floating over at least one single-inserted multifilament weft yarn in at least a portion of weft pattern repeats, and wherein outside of the floats the non-floating warp yarns pass successively over and under alternating picks of weft yarns.

2. The woven fabric of claim 1 , wherein the repeating pattern of the zones in the woven fabric consists of an alternating pattern of first weave zones and partial float weave zones.

3. The woven fabric of claim 1 , wherein the repeating pattern of zones comprises first weave zones, partial float weave zones, and second weave zones.

4. The woven fabric of claim 1 , wherein the weft yarns in the woven fabric comprise a repeating pattern of at least one monofilament yarn and at least one single-inserted multifilament yarn throughout the entire fabric.

5. The woven fabric of claim 1 , wherein the warp yarns are monofilament yarns.

6. The woven fabric of claim 1 , wherein at least a portion of the yarns in the woven fabric comprise a UV stabilizer.

7. The woven fabric of claim 1 , wherein the woven fabric is a narrow woven tape have a width of less than about 2 inches.

8. 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 fabric comprises a plurality warp yarns and a plurality of picks of weft yarns, wherein the weft yarns comprise a repeating first weft pattern of at least one monofilament yarn and at least one single-inserted multifilament yarn, wherein the woven fabric comprises an alternating pattern containing first weave zones and partial float weave zones,
wherein in the first weave zones, the warp yarns pass successively over and under each adjacent weft yarn forming a plain weave,
wherein in the partial float zones, at least a portion of the warp yarns float over some adjacent weft yarns including floating over at least one single-inserted multifilament weft yarn in at least a portion of first weft pattern repeats, and wherein outside of the floats the non-floating warp yarns pass successively over and under alternating picks of weft yarns.

9. The innerduct of claim 8 , wherein the woven fabric comprises an alternating pattern containing first weave zones, second weave zones, partial float weave zones.

10. The woven fabric of claim 8 , wherein the repeating pattern of the zones in the woven fabric consists of an alternating pattern of first weave zones and partial float weave zones.

11. The woven fabric of claim 8 , wherein the warp yarns are monofilament yarns.

12. The woven fabric of claim 8 , wherein at least a portion of the yarns in the woven fabric comprise a UV stabilizer.

13. 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 textile fabric comprises:
a plurality warp yarns arranged into groupings of warp yarns, wherein each grouping contains between 2 and 10 warp yarns; and,
a plurality of picks of weft yarns;
wherein in each first weave zone the picks of weft yarns comprise a repeating first weft pattern of at least one monofilament yarn and at least one single-inserted multifilament yarn, wherein within the first weave zones each warp yarn passes successively over and under alternating picks of weft yarns forming a plain weave,
wherein in each partial float zone the picks of weft yarns within the partial float weave zone comprise a repeating second weft pattern of at least one monofilament yarn and at least one single-inserted multifilament yarn,
wherein only a portion of the warp yarns within at least a portion of the warp groupings float over 3 weft yarns including floating over at least one single-inserted multifilament weft yarn in at least a portion of weft pattern repeats, and wherein outside of the floats the non-floating warp yarns pass successively over and under alternating picks of weft yarns, and wherein the repeating pattern of the zones in the woven fabric consists of an alternating pattern of first weave zones and partial float weave zones.

14. The woven fabric of claim 13 , wherein the weft yarns in the woven fabric comprise a repeating pattern of at least one monofilament yarn and at least one single-inserted multifilament yarn throughout the entire fabric.

15. The woven fabric of claim 13 , wherein the warp yarns are monofilament yarns.

16. The woven fabric of claim 13 , wherein at least a portion of the yarns in the woven fabric comprise a UV stabilizer.

17. The woven fabric of claim 13 , wherein the repeating pattern of the zones in the woven fabric consists of an alternating pattern of first weave zones and partial float weave zones.

18. An apparatus comprising:
a conduit;
an innerduct positioned inside the conduit, the innerduct comprising at least one strip-shaped panel of woven textile material folded about a centrally located longitudinal axis and adjoined along the longitudinal edge portions to define at least one longitudinal channel that is configured to enclose and carry a cable, wherein said woven textile material comprises:
a plurality warp yarns arranged into groupings of warp yarns, wherein each grouping contains between 2 and 10 warp yarns; and,
a plurality of picks of weft yarns;
wherein in each first weave zone the picks of weft yarns comprise a repeating first weft pattern of at least one monofilament yarn and at least one single-inserted multifilament yarn, wherein within the first weave zones each warp yarn passes successively over and under alternating picks of weft yarns forming a plain weave,
wherein in each partial float zone the picks of weft yarns within the partial float weave zone comprise a repeating second weft pattern of at least one monofilament yarn and at least one single-inserted multifilament yarn,
wherein only a portion of the warp yarns within at least a portion of the warp groupings float over 3 weft yarns including floating over at least one single-inserted multifilament weft yarn in at least a portion of weft pattern repeats, and wherein outside of the floats the non-floating warp yarns pass successively over and under alternating picks of weft yarns.

19. The woven fabric of claim 18 , wherein the weft yarns in comprise a repeating pattern of at least one monofilament yarn and at least one single-inserted multifilament yarn throughout the entire fabric.

20. The woven fabric of claim 18 , wherein the warp yarns are monofilament yarns.

Assignees

• Milliken & Co

Inventors

• Bedingfield Steven L
• Durham Christopher G

Classifications

• D03D1/007

  UV radiation protecting · CPC title

• G02B6/50

  Underground or underwater installation; Installation through tubing, conduits or ducts · CPC title

• D03D3/02

  Tubular fabrics · CPC title

• D99Z99/00

  Subject matter not otherwise provided for in this section · CPC title

• D03D13/004 Primary

  with weave pattern being non-standard or providing special effects · CPC title