Apparatuses, systems, and methods for installing fiber optic cable using preexisting electrical power infrastructure

Patent metadata

Field	Value
Publication number	US-10613289-B2
Application number	US-201816228746-A
Country	US
Kind code	B2
Filing date	Dec 20, 2018
Priority date	Feb 9, 2018
Publication date	Apr 7, 2020
Grant date	Apr 7, 2020

Abstract

The disclosed system may include (1) a spool that carries a length of fiber optic cable to be installed on a powerline conductor, where the spool defines multiple axes of rotation, and (2) a motion subsystem that carries the spool, where the motion subsystem (a) causes the system to travel along the powerline conductor, (b) revolves the spool helically about the powerline conductor at a first rate related to a second rate at which the system travels along the powerline conductor, and (c) rotates the spool about the multiple axes of rotation while revolving the spool helically about the powerline conductor to helically wrap the fiber optic cable about the powerline conductor. Various other systems, apparatuses, and methods are also disclosed.

First claim

What is claimed is:

1. A system comprising:
a spool that carries a length of fiber optic cable to be installed on a powerline conductor, wherein the spool defines multiple axes of rotation; and
a motion subsystem that carries the spool, wherein the motion subsystem:
causes the system to travel along the powerline conductor;
revolves the spool helically about the powerline conductor at a first rate related to a second rate at which the system travels along the powerline conductor; and
rotates the spool about the multiple axes of rotation while revolving the spool helically about the powerline conductor to helically wrap the fiber optic cable about the powerline conductor.

2. The system of claim 1 , wherein the motion subsystem rotates the spool about the multiple axes of rotation to maintain a predetermined tension on the fiber optic cable while helically wrapping the fiber optic cable about the powerline conductor.

3. The system of claim 1 , wherein at least one of the multiple axes of rotation is parallel to at least a portion of the powerline conductor currently being travelled along by the system.

4. The system of claim 1 , wherein the motion subsystem rotates about the powerline conductor as the motion subsystem causes the system to travel along the powerline conductor to revolve the spool about the powerline conductor.

5. The system of claim 1 , wherein the motion subsystem revolves the spool about the powerline conductor while the motion subsystem maintains a single orientation relative to the powerline conductor.

6. The system of claim 1 , wherein the spool comprises a helically-shaped spool extending along the powerline conductor and defining a helical curve about the powerline conductor.

7. The system of claim 6 , wherein the helical curve spans at least 180 degrees about the powerline conductor.

8. The system of claim 6 , wherein the spool comprises:
a flange at each end of the spool to retain the fiber optic cable on the spool; and
a plurality of discs coupling the flanges together, wherein:
the plurality of discs are oriented parallel to each other and perpendicular to the powerline conductor; and
centers of the plurality of discs define the helical curve about the powerline conductor.

9. The system of claim 8 , wherein the plurality of discs are coupled together such that rotating a first one of the plurality of discs causes others of the plurality of discs to rotate at a same rate as the first one of the plurality of discs.

10. The system of claim 1 , wherein the spool comprises at least one linear spool section oriented parallel to the powerline conductor.

11. The system of claim 1 , wherein the spool comprises:
a first linear spool section oriented parallel to the powerline conductor;
a second linear spool section oriented parallel to the powerline conductor and located opposite the powerline conductor from the first linear spool section; and
a center curved spool section coupling a first end of the first linear spool section to a first end of the second linear spool section.

12. The system of claim 11 , wherein the motion subsystem causes the system to travel along the powerline conductor in a direction corresponding to the center curved spool section.

13. The system of claim 11 , wherein:
the first linear spool section comprises:
a first flange connected to the first end of the first linear spool section; and
a second flange connected to a second end of the first linear spool section opposite the first end of the first linear spool section;

the second linear spool section comprises:
a third flange connected to the first end of the second linear spool section; and
a fourth flange connected to a second end of the second linear spool section opposite the first end of the second linear spool section; and

the system further comprises a frame, wherein the first and second linear spool sections are rotatably coupled to the frame via the first, second, third, and fourth flanges.

14. The system of claim 13 , wherein:
the center curved spool section is fixably coupled to the first end of each of the first and second linear spool sections; and
the motion subsystem rotates the first and second linear spool sections at a same rotational rate in opposing directions.

15. The system of claim 14 , wherein:
the first flange defines a first gap through which the fiber optic cable is passed between the first linear spool section and the center curved spool section; and
the third flange defines a second gap through which the fiber optic cable is passed between the second linear spool section and the center curved spool section.

16. The system of claim 15 , further comprising:
a first fiber guide helically wound about the center curved spool section to guide the fiber optic cable over the center curved spool section from the first linear spool section to the second linear spool section; and
a second fiber guide helically wound about the center curved spool section to guide the fiber optic cable over the center curved spool section from the second linear spool section to the first linear spool section; and
wherein the first and second fiber guides are helically wound about the center curved spool section in opposing directions.

17. A system comprising:
a motion subsystem that causes the system to travel along a powerline conductor; and
a coupler that releasably couples, to the motion subsystem, a spool that carries a length of fiber optic cable to be installed on the powerline conductor, wherein the spool defines multiple axes of rotation; and
wherein the motion subsystem, when the spool is coupled to the motion subsystem:
revolves the spool helically about the powerline conductor at a first rate related to a second rate at which the system travels along the powerline conductor; and
rotates the spool about the multiple axes of rotation while revolving the spool helically about the powerline conductor to helically wrap the fiber optic cable about the powerline conductor.

18. The system of claim 17 , wherein the motion subsystem revolves the spool relative to the motion subsystem to revolve the spool about the powerline conductor.

19. The system of claim 17 , wherein the motion subsystem rotates relative to the powerline conductor to revolve the spool about the powerline conductor.

20. A method comprising:
carrying a spool loaded with a length of fiber optic cable to be installed on a powerline conductor along the powerline conductor, wherein the spool defines multiple axes of rotation;
revolving the spool helically about the powerline conductor at a first rate related to a second rate at which the spool is carried along the powerline conductor; and
rotating the spool about the multiple axes of rotation while revolving the spool helically about the powerline conductor to helically wrap the fiber optic cable about the powerline conductor.

Assignees

• Facebook Inc

Inventors

• Yogeeswaran Karthik
• Wiley Scott C
• Mass James A

Classifications

• G02B6/4457

  Bobbins; Reels · CPC title

• G02B6/486 Primary

  by helical wrapping · CPC title

• B65H2701/32

  Optical fibres or optical cables · CPC title

• G02B6/483

  Installation of aerial type · CPC title

• B65H75/14

  with two end flanges · CPC title