Methods for creating a demarcation location in a structure and associated assemblies

Patent metadata

Field	Value
Publication number	US-9594225-B2
Application number	US-201414287245-A
Country	US
Kind code	B2
Filing date	May 27, 2014
Priority date	Nov 30, 2011
Publication date	Mar 14, 2017
Grant date	Mar 14, 2017

Abstract

Disclosed are methods for creating a demarcation of at least one optical fiber in a structure along with a fiber optic cable. The method may include the steps of providing at least one optical fiber having a covering, heating a portion of the covering, and deforming the covering about the at least one optical fiber at a first location to inhibit movement of the at least one optical fiber with respect to the covering. The method may be applied to one or more optical fibers within a covering such as bare loose fibers, ribbonized fibers, buffered fibers or the like.

First claim

We claim:

1. A method of providing a demarcation for at least one optical fiber, comprising the steps of:
providing at least one optical fiber having a covering;
heating one or more portions of the covering;
deforming the one or more portions of the covering about the at least one optical fiber at a first location to inhibit movement of the at least one optical fiber with respect to the covering; and
deforming the one or more portions of the covering at a second location and cutting the at least one optical fiber between the first location and the second location for forming two segments.

2. The method of claim 1 , further including the step of maintaining a positive excess fiber length (EFL) when deforming the covering.

3. The method of claim 1 , wherein a distance between the first location and the second location is 50 millimeters or greater.

4. The method of claim 1 , the step of deforming the covering including deforming the covering about at least one strength member or at least one electrical conductor.

5. The method of claim 1 , further including the step of inserting an adhesive into the covering.

6. The method of claim 1 , the step of deforming the covering being accomplished using a clamping mechanism.

7. The method of claim 1 , wherein the step of heating and the step of deforming the covering are accomplished using the same equipment.

8. The method of claim 1 , wherein the step of deforming the covering collapses the covering into a predetermined shape.

9. The method of claim 1 , further including the step of attaching a fiber optic connector to the at least one optical fiber.

10. The method of claim 1 , further including the step of placing a portion of the deformed covering into a housing.

11. A structure according to the method of claim 1 .

12. A method of providing a demarcation for at least one optical fiber, comprising the steps of:
providing at least one optical fiber and a covering defining an cavity that houses the at least one optical fiber;
inserting an adhesive into the cavity of the covering;
heating one or more portions of the covering;
deforming the one or more portions of the covering about the at least one optical fiber at a first location to inhibit movement of the at least one optical fiber with respect to the covering; and
deforming the one or more portions of the covering at a second location and cutting the at least one optical fiber between the first location and the second location for forming two segments.

13. The method of claim 12 , further including the step of maintaining a positive excess fiber length (EFL) when deforming the covering.

14. The method of claim 12 , wherein a distance between the first location and the second location is 50 millimeters or greater.

15. The method of claim 12 , wherein the adhesive has a lower melting temperature than a melting temperature of the covering.

16. The method of claim 12 , the step of deforming the covering including deforming the covering about at least one strength member or at least one electrical conductor.

17. The method of claim 12 , the step of deforming the covering being accomplished using a clamping mechanism.

18. The method of claim 12 , wherein the step of heating and the step of deforming the covering are accomplished using the same equipment.

19. The method of claim 12 , wherein the step of deforming the covering collapses the covering into a predetermined shape.

20. The method of claim 12 , further including the step of attaching a fiber optic connector to the at least one optical fiber.

21. A structure according to the method of claim 20 .

22. A fiber optic cable comprising at least one optical fiber and a cable jacket, wherein the cable jacket is deformed about the at least one optical fiber at a first location and a second location to inhibit movement of the at least one optical fiber with respect to the cable jacket, wherein the at least one optical fiber is cut between the first location and the second location to form two segments.

23. The fiber optic cable of claim 22 , the at least one optical fiber being attached to a connector.

24. The fiber optic cable of claim 22 , further including an adhesive disposed within the cable jacket at the deformed portion.

25. The fiber optic cable of claim 22 , further including a positive excess fiber length (EFL) within the fiber optic cable.

Assignees

• Corning Optical Communications LLC

Inventors

• Isenhour Micah Colen
• Knecht Dennis Michael
• Luther James Phillip
• Roberts Reginald

Classifications

• G02B6/3806

  Semi-permanent connections, i.e. wherein the mechanical means keeping the fibres aligned allow for removal of the fibres (dismountable connectors G02B6/3807) · CPC title

• Y10T29/49801

  Shaping fiber or fibered material · CPC title

• G02B6/3846

  with fibre stubs · CPC title

• G02B6/3628 Primary

  for mounting fibres to supporting carriers (G02B6/3608, G02B6/3616 take precedence) · CPC title

• G02B6/4479

  Manufacturing methods of optical cables · CPC title