Spool-free fiber optic cable configuration for cable installation onto a powerline conductor

Patent metadata

Field	Value
Publication number	US-11787736-B2
Application number	US-202217673540-A
Country	US
Kind code	B2
Filing date	Feb 16, 2022
Priority date	May 10, 2019
Publication date	Oct 17, 2023
Grant date	Oct 17, 2023

Abstract

A method may include (1) coating a segment of fiber optic cable with an adhesive substance, (2) forming a coil of the segment of fiber optic cable, (3) deforming the coil into a noncircular shape defining a slot external to the coil while obeying a minimum bend radius requirement for the segment of fiber optic cable, and (4) activating the adhesive substance to stabilize the noncircular shape of the coil. Various other methods and apparatuses, such as those for performing the deforming operation, are also disclosed.

First claim

What is claimed is:

1. A method comprising:
coating a segment of fiber optic cable with an adhesive substance;
forming a coil of the segment of fiber optic cable;
deforming the coil into a noncircular shape defining a slot external to the coil while obeying a minimum bend radius requirement for the segment of fiber optic cable; and
activating the adhesive substance to stabilize the noncircular shape of the coil.

2. The method of claim 1 , wherein coating the segment of fiber optic cable is performed before forming the coil.

3. The method of claim 1 , wherein:
the adhesive substance comprises paraffin; and
activating the adhesive substance comprises heating the coil.

4. The method of claim 1 , wherein the coil comprises a circular shape prior to deforming the coil.

5. The method of claim 1 , further comprising pre-twisting the segment of fiber optic cable prior to forming the coil.

6. The method of claim 5 , wherein pre-twisting the segment of fiber optic cable is performed at a rate that cancels a twisting to be applied to the segment of fiber optic cable during subsequent wrapping of the segment of fiber optic cable about a powerline conductor.

7. The method of claim 1 , wherein deforming the coil comprises applying a first force to a first portion of a perimeter of the coil to form the slot.

8. The method of claim 7 , wherein the first force is applied using a first ram with a surface having a shape of the slot.

9. The method of claim 7 , wherein deforming the coil further comprises applying a second force to a second portion of the perimeter of the coil opposite the first portion.

10. The method of claim 9 , wherein the second force is applied using a second ram with a surface having a shape different from the slot.

11. A method comprising:
wrapping a segment of fiber optic cable about a hub section of a reel to form a coil, wherein the hub section comprises at least one first removable section upon which the coil is carried, wherein the at least one first removable section corresponds to a first portion of a perimeter of the coil;
coupling the reel to a base portion of a deforming apparatus;
removing the at least one first removable section from the hub section of the reel; and
moving a first ram toward the first portion of the perimeter of the coil such that a protruding surface of the first ram deforms the coil into a noncircular shape defining a slot external to the coil while obeying a minimum bend radius requirement for the segment of fiber optic cable.

12. The method of claim 11 , wherein:
the hub section comprises at least one second removable section upon which the coil is carried;
the at least one second removable section corresponds to a second portion of the perimeter of the coil; and
the method further comprises:
removing the at least one second removable section from the hub section of the reel; and
moving a second ram toward the second portion of the perimeter of the coil such that a surface of the second ram further deforms the coil while obeying the minimum bend radius requirement for the segment of fiber optic cable.

Assignees

• Meta Platforms Inc

Inventors

• Yogeeswaran Karthik
• Kachmar Wayne Michael
• Mass James A
• Todd Nelson

Classifications

• C03C25/002 Primary

  Thermal treatment · CPC title

• B65H54/58

  Swifts or reels adapted solely for the formation of hanks or skeins (B65H49/30 takes precedence) · CPC title

• C03B37/0126

  Means for supporting, rotating, translating the rod, tube or preform · CPC title

• C03B37/01257

  Heating devices therefor · CPC title

• C03C25/106

  Single coatings · CPC title