Optical fiber cable with reinforcement

Patent metadata

Field	Value
Publication number	US-12210201-B2
Application number	US-202318386811-A
Country	US
Kind code	B2
Filing date	Nov 3, 2023
Priority date	Oct 18, 2013
Publication date	Jan 28, 2025
Grant date	Jan 28, 2025

Abstract

An optical communication cable includes a cable jacket formed from a first material, a plurality of core elements located within the cable jacket, and an armor layer surrounding the plurality of core elements within the cable jacket, wherein the armor layer is a multi-piece layer having a first armor segment extending a portion of the distance around the plurality of core elements and a second armor segment extending a portion of the distance around the plurality of core elements, wherein a first lateral edge of the first armor segment is adjacent a first lateral edge of the second armor segment and a second lateral edge of the first armor segment is adjacent a second lateral edge of the second armor segment such that the combination of the first armor segment and the second armor segment completely surround the plurality of core elements.

First claim

What is claimed is:

1. An optical fiber cable, comprising:
a cable jacket;
a plurality of core elements disposed within the cable jacket;
an armor layer surrounding the plurality of core elements within the cable jacket, wherein the armor layer is a multi-piece layer comprising:
a first armor segment extending a first portion of a distance around the plurality of core elements;
a second armor segment extending a second portion of the distance around the plurality of core elements, such that in combination the first armor segment and the second armor segment completely surround the plurality of core elements.

2. The optical fiber cable of claim 1 , the first armor segment comprising:
a first overlap portion; and
a second overlap portion;

the second armor segment comprising:
a third overlap portion; and
a fourth overlap portion, wherein the first overlap portion overlaps the third overlap portion to form a first overlap region of the armor layer and the second overlap portion overlaps the fourth overlap portion to form a second overlap region of the armor layer.

3. The optical fiber cable of claim 2 , wherein the first overlap portion and the third overlap portion are in contact with one another, and wherein further the second overlap portion and the fourth overlap portion are in contact with one another.

4. The optical fiber cable of claim 2 , wherein the first armor segment comprises a perforation in the first overlap portion, wherein the perforation engages with material of the second armor segment in the third overlap portion.

5. The optical fiber cable of claim 4 , the perforation being a first perforation, the second armor segment comprising a second perforation in the third overlap portion, wherein the second perforation engages with material of the first armor segment in the first overlap portion.

6. The optical fiber cable of claim 2 , wherein at least one of the first armor segment or the second armor segment comprises a plurality of perforations, the plurality of perforations aligned in a direction substantially parallel to a longitudinal axis of the optical fiber cable and offset from the first overlap region and the second overlap region.

7. The optical fiber cable of claim 1 , wherein the first armor segment comprises a first hook section and the second armor segment comprises a second hook section, wherein the first hook section and the second hook section interlock so as to join the first armor segment to the second armor segment.

8. The optical fiber cable of claim 1 , wherein the first armor segment comprises a first radial portion that extends outwardly in a radial direction of the optical fiber cable, wherein the second armor segment comprises a second radial portion that extends outwardly in the radial direction of the optical fiber cable such that the first radial portion and the second radial portion form an overlap portion of the first armor segment and the second armor segment.

9. The optical fiber cable of claim 8 , further comprising a pair of strength elements embedded in the cable jacket, the first radial portion and the second radial portion extending between the pair of strength elements such that the overlap portion is disposed between the pair of strength elements.

10. The optical fiber cable of claim 8 , further comprising a strength element embedded in the cable jacket, the strength element comprising a slot, and wherein the overlap portion formed by the first radial portion and the second radial portion is disposed within the slot.

11. The optical fiber cable of claim 1 , the optical fiber cable further comprising:
a water-blocking element disposed between the plurality of core elements and the armor layer.

12. The optical fiber cable of claim 11 , wherein the water-blocking element comprises a water-blocking tape.

13. The optical fiber cable of claim 11 , wherein the water-blocking element comprises a binder film that surrounds the plurality of core elements, wherein a water-blocking powder is applied to an interior surface of the binder film.

14. The optical fiber cable of claim 11 , wherein the plurality of core elements comprises a plurality of optical fiber ribbons.

15. The optical fiber cable of claim 1 , the first armor segment comprising a first edge having a plurality of tabs formed therein, the second armor segment comprising a second edge disposed between the plurality of tabs.

16. The optical fiber cable of claim 15 , the plurality of tabs comprising a first tab and a second tab, the second edge comprising a first side and a second side, the first tab positioned adjacent to the first side and the second tab positioned adjacent to the second side.

17. The optical fiber cable of claim 1 , the first armor segment comprising a first lateral edge, the second armor segment comprising a second lateral edge, wherein the first lateral edge abuts the second lateral edge.

18. The optical fiber cable of claim 1 , wherein the plurality of core elements are S-Z stranded.

19. The optical fiber cable of claim 18 , further comprising a binder film disposed around the plurality of core elements and configured to maintain the S-Z stranding of the plurality of core elements.

20. The optical fiber cable of claim 1 , further comprising a film disposed around the plurality of core elements and between the plurality of core elements and the armor layer.

Assignees

• Corning Optical Communications LLC

Inventors

• Blazer Bradley Jerome
• Gimblet Michael John
• Greenwood Iii Julian Latelle
• Lail Jason Clay
• Mcalpine Warren Welborn
• Mozdy Eric John

Classifications

• G02B6/443 Primary

  Protective covering · CPC title

• G02B6/4431 Primary

  with provision in the protective covering, e.g. weak line, for gaining access to one or more fibres, e.g. for branching or tapping (break-out terminations G02B6/4471) · CPC title

• G02B6/441

  built up from sub-bundles (G02B6/4429, G02B6/4439, G02B6/4479 take precedence) · CPC title

• G02B6/4403

  with ribbon structure (G02B6/4429, G02B6/4439, G02B6/4479 take precedence) · CPC title

• G02B6/4434

  Central member to take up tensile loads · CPC title