Partial float weave fabric

Patent metadata

Field	Value
Publication number	US-11008680-B2
Application number	US-201715586583-A
Country	US
Kind code	B2
Filing date	May 4, 2017
Priority date	Nov 24, 2015
Publication date	May 18, 2021
Grant date	May 18, 2021

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, at least one multiple-inserted multifilament 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. 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, at least one multiple-inserted multifilament yarn, and optionally 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 multiple-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.

2. The innerduct of claim 1 , wherein at least a portion of the warp yarns in the partial float zone float over 2 adjacent weft yarns.

3. The innerduct of claim 1 , wherein at least a portion of the warp yarns in the partial float zone float over 3 adjacent weft yarns.

4. The innerduct of claim 1 , wherein the ratio of picks in the first weave zone to picks in the partial float zone is between about 1:2 to 2:1.

5. The innerduct of claim 1 , wherein the woven fabric comprises an alternating pattern containing first weave zones, second weave zones, partial float weave zones.

6. The innerduct of claim 1 , wherein only a portion of the warp yarns in the partial float zone float over some adjacent weft 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

• H02G9/06

  in underground tubes or conduits; Tubes or conduits therefor · CPC title