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Innerduct guide tube assembly for fiber optic cable

A guide tube, inner tube technology, applied in the direction of fiber/cable installation, cable installation, light guide, etc., can solve the problems of corners, bends and undulations

Inactive Publication Date: 2007-06-13
MILLIKEN & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem encountered in this way is that when the conduit is laid for a long distance or laid in a building, there will always be corners, bends and undulations in it

Method used

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  • Innerduct guide tube assembly for fiber optic cable
  • Innerduct guide tube assembly for fiber optic cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0017] 1.4×6 nylon tube

[0018] the inside diameter of

4

mm

outer diameter

6

mm

Pull Line, A&E

210

T

Ceiling Bulkhead Cable

3

mm

pull length

60

ft

a. Straight

0.5 to 0.7lbs

b. Two 90 degree bends

0.7 to 0.9lbs

c. Four 90 degree bends

1.2 to 1.4lbs

Remarks: The bending radius is 8″

[0019] 2.4×6 nylon tube

[0020] the inside diameter of

4

mm

outer diameter

6

mm

Pull Line, A&E

300

T

Ceiling Bulkhead Cable

3

mm

[0021] pull length

300

ft

a. Straight

1.6 to 2.0lbs

b. Two 90 degree bends

2.4 to 2.9lbs

c. Four 90 degree bends

3.4 to 4.0lbs

Remarks: The bending radius is 12″

[0022] 3.3.3×5 nylon tube

[0023] the inside diameter of

3.3

mm

outer diameter

5

mm

Pull Line, A&E...

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PUM

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Abstract

A flexible innerduct guide tube assembly configured to contain a cable within a conduit is provided. The innerduct assembly includes a plurality of guide tubes, each tube configured to contain at least one cable, wherein the tubes are disposed and bundled within a protective textile sleeve. Each guide tube may contain means for pulling a cable into the tube, and such pulling means may include pull cord or tape, or any other means suitable for installing a cable into the guide tube. Other principal features of the invention relate to the material of which the innerduct guide tube assembly is formed, as well as methods for manufacturing and using the innerduct assembly.

Description

field of invention [0001] The present invention primarily relates to cylindrical conduits of the type that can be used for the housing of underground or in-building cables, such as fiber optic cables, coaxial cables or the like. More specifically, the present invention relates to dividing means that can be inserted into such a catheter to divide the catheter into separate regions. In particular, the invention relates to flexible elongated spacers for insertion into conduits already in place, which may already have at least one cable placed therein, and in which there may be turns, bends or the like . Background technique [0002] Cables such as fiber optic communication cables are often laid underground for long distances, possibly extending many miles. It is known in the art to bury cables in the ground so that the cables and their corresponding support facilities do not accumulate on the ground. Also, locating the cable underground provides better protection from the we...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C29/16H01R13/60
CPCG02B6/4459H02G9/06D02G3/185G02B6/50H01R13/00
Inventor D·D·莫里斯
Owner MILLIKEN & CO