Cable pulling device

• US 20070170408A1
• Filed: 12/30/2005
• Published: 07/26/2007
• Est. Priority Date: 12/30/2005
• Status: Active Grant

• Current Assignee: Chris J. Martinez
• Original Assignee: Chris J. Martinez
• Inventors: Martinez, Chris
• Granted Patent: US 7,419,136 B2
• Time in Patent Office: Days
• US Class Current: 254/338
• CPC Class Codes: H02G 1/06 for laying cables, e.g. laying apparatus on vehicle
• CPC Class Codes: H02G 1/08 through tubing or conduit, e.g. rod or draw wire for pushing or pulling inserting electrical cables into tubes using wallbores E21B17/206; for optical cables G02B6/4401

Abstract

A cable is moved through a cable fitting (for example, a BUB fitting) into a first opening of the fitting and out of a second opening of the fitting. A roller support structure is mounted on a fitting such that a set of rollers supported by the roller support structure is disposed inside the interior volume of the fitting. A spacer is disposed between the roller support structure and the fitting. An end of a cable is then moved into a first opening of the filling, over the rollers, and out of the fitting through the second opening. Once the cable has rolled over the rollers a desired distance though the fitting, the spacer is removed and the rollers are detached from the roller support structure. The rollers are slipped out around the cable and extracted from the interior volume. The roller support structure is then unmounted from the fitting.

Claims

1. A method comprising:

mounting a roller support structure on a cable fitting, the cable fitting having a first opening and a second opening; and

moving a cable through the first opening into the cable fitting, over a roller of the roller support structure, and out of the cable fitting through the second opening.

2. The method of claim 1, wherein said moving of the cable involves sliding the cable through the cable fitting.

3. The method of claim 1, wherein the roller support structure is mounted to the cable fitting without the roller support structure being fixed to the cable fitting.

4. The method of claim 1, wherein the cable fitting defines an interior volume, the roller being disposed in the volume.

5. The method of claim 1, wherein said mounting involves providing a spacer between the roller support structure and the fitting and the method further comprising removing the spacers from between the roller support structure and the cable fitting after said moving when the cable is disposed in the cable fitting.

6. The method of claim 1, further comprising:

detaching the roller from the roller support structure after said moving, the roller being detached when the cable is disposed in the cable fitting.

7. The method of claim 1, wherein the roller support structure comprises a plurality of rollers.

8. The method of claim 1, wherein the first opening has a cross sectional area of at least three inches.

9. The method of claim 1, wherein the roller support structure comprises an anchor connection member, the method further comprising:

coupling the anchor connection member to an anchor, wherein the anchor pulls on the roller support structure when the cable is moved through the fitting thereby relieving pressure on fitting.

10. The method of claim 1, further comprising:

wherein the cable is simultaneously moved through a second cable fitting wherein a second roller support structure is mounted on said second cable fitting.

11. The method of claim 1, wherein said cable has a diameter of at least two hundred square millimeters.

12. The method of claim 1, further comprising:

unmounting the roller support structure from the cable fitting after said moving.

13. The method of claim 1, wherein the interior volume of the cable fitting is defined by an inside bottom surface, inside bottom surface being disposed in an inside bottom surface plane, wherein the cable fitting has a cover plate mating surface being disposed in a cover plate plane, the roller is disposed between said inside bottom surface plane and said cover plate plane, wherein the roller is disposed between the cable and the inside bottom surface plane during said moving of the cable through the cable fitting.

14. The method of claim 13, wherein there is a second roller disposed between said inside bottom surface plane and said cover plate plane, wherein the rollers are disposed between the cable and the inside bottom surface plane during said moving of the cable through the cable fitting.

15. The method of claim 1, wherein the interior volume of the cable fitting is defined by an inside bottom surface, inside bottom surface being disposed in an inside bottom surface plane, wherein the roller is disposed between said inside bottom surface plane and said cable during said moving of the cable through the cable fitting.

16. A device comprising:

a roller support structure having a planar bearing surface, the bearing surface being adapted for mounting the roller support structure to a planar cover plate mating surface of a cable fitting, the roller support structure comprising a first side plate and a second side plate; and

a plurality of rollers, each of the rollers having a first end portion supported by the first side plate and a second end portion supported by the second side plate.

17. A device comprising:

a roller support structure adapted for mounting the roller support structure to a cable fitting, the roller support structure comprising a first side plate and a second side plate; and

at least three rollers, each of the rollers having a first end portion supported by the first side plate and a second end portion supported by the second side plate.

18. The device of claim 17, additionally comprising an anchor connection member.

19. A device comprising:

a roller; and

means for pulling a cable through a first opening in a cable fitting over the roller and out of the cable fitting through a second opening of the cable fitting.

20. The device of claim 19, wherein the cable fitting defines an interior volume and the roller is disposed outside of the interior volume.