IP Library › Granted Patent US 10,374,402
Granted Patent B2
US 10,374,402 · App. 15/899,765 · Granted Aug 6, 2019

Wire pulling head apparatus with crimp zone indicators and method of using same

Inventors: Mark D. Bennett (Bonham, TX); William T. Bigbee, Jr. (Melissa, TX)
Assignee: Encore Wire Corporation
H02G1/081H02G1/08H02G3/00
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Quick Facts
Patent No.
US 10,374,402
App. No.
15/899,765
Granted
Aug 6, 2019
Kind
B2
Abstract

An enhanced apparatus and method for securing a wire to a pulling cable for pulling wire. Specifically, the pulling cable and wire are attached via a pulling head body. The wire is inserted into an end of the pulling head body and secured by crimping the pulling head body against the wire. Further, crimp zone indicators positioned on the outer surface of the pulling head body indicate the optimal zone of crimping to achieve substantial contact between the pulling head body and the wire. A pulling cable is secured to the pulling head body via a ball swage that comprises a tapped surface.

Claims (27)

1. A pulling head body for pulling wire, the pulling head body comprising:

a bore extending along the pulling head body;

wherein a pulling cable is inserted into the bore; and

wherein the pulling cable is secured to the pulling head body via a tapped ball swage neck.

2. The pulling head body of claim 1 further comprising one or more crimp zone indicators, wherein the crimp zone indicators are positioned on an outer surface of the tapped ball swage neck.

3. The pulling head body of claim 1 , wherein the tapped ball swage neck provides friction between the tapped ball swag neck and the pulling cable.

4. The pulling head body of claim 3 , wherein the tapped ball swage neck is a textured tapped ball swag neck.

5. The pulling head body of claim 3 , wherein the tapped ball swage neck is a striated tapped ball swag neck.

6. The pulling head body of claim 3 , wherein the tapped ball swage neck is a ridged tapped ball swag neck.

7. The pulling head body of claim 3 , wherein the tapped ball swage neck is a furrowed tapped ball swag neck.

8. The pulling head body of claim 3 , wherein the tapped ball swage neck prevents the detachment of the pulling wire from the tapped ball swag neck.

9. The pulling head body of claim 1 , wherein the tapped ball swage neck is crimped to an end of the pulling cable.

10. The pulling head body of claim 9 , wherein the tapped ball swage neck comprises indicators for the location of a tapped surface.

11. The pulling head body of claim 1 , wherein the tapped ball swage neck is a spiral groove tapped ball swage neck.

12. A ball swage pulling system, the ball swage pulling system comprising:

at least one pulling cable, the at least one pulling cable having a pulling end and an attachment end; and

at least one pulling head body, the at least one pulling head body comprising a bore extending along the at least one pulling head body;

wherein the at least one pulling cable is inserted into the bore of the at least one pulling head body; and

wherein the at least one pulling cable is secured to the at least one pulling head body via a tapped ball swage neck.

13. The ball swage pulling system of claim 12 , wherein the at least one pulling cable comprises at least two pulling cables.

14. The ball swage pulling system of claim 13 , wherein the at least one pulling head body comprises at least two pulling head bodies.

15. The ball swage pulling system of claim 14 , wherein a first pulling cable is inserted into the bore of the first pulling head body and the second pulling cable is inserted into the bore of the second pulling head body.

16. The ball swage pulling system of claim 15 , wherein the first pulling cable is secured to a first pulling head body via the first tapped ball swage neck and wherein the second pulling cable is secured to a second pulling head body via the second tapped ball swage neck.

17. The ball swage pulling system of claim 16 , wherein the first and second tapped ball swage necks comprise crimp zone indicators.

18. The ball swage pulling system of claim 13 , wherein the first pulling cable is secured to the second pulling cable.

19. The ball swage pulling system of claim 18 , wherein the first and second pulling cables form a loop.

20. The pulling head body of claim 12 , wherein the tapped ball swage neck provides friction between the tapped ball swag neck and the at least one pulling cable.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 20, 2018
From: BENNETT, MARK D.; BIGBEE, WILLIAM T., JR.
To: ENCORE WIRE CORPORATION
Reel/Frame 044975/0385 →
Continuity (3)
Continuation 15359065 · Nov 22, 2016
Continuation 13408586 · Feb 29, 2012
Related Publication 20180175594A1 · Jun 21, 2018