Termination installation for long cables

Patent metadata

Field	Value
Publication number	US-10054505-B2
Application number	US-201715784267-A
Country	US
Kind code	B2
Filing date	Oct 16, 2017
Priority date	Feb 2, 2015
Publication date	Aug 21, 2018
Grant date	Aug 21, 2018

Abstract

A method for creating a composite cable having at least one high-performance termination on at least one end. A high-performance termination is added to an end of a short synthetic tensile strength member. The strength of the tensile strength member and termination is then tested. Once tested satisfactorily, the short cable is spiced onto a long cable of the same type using prior art splicing techniques. The union of the short cable and the long cable creates a “composite” cable having a high-performance termination on at least one end. In most applications it is preferable to set the length of the short cable so that the interwoven splice will exist at a desired location.

First claim

I claim:

1. A marine lifting system configured for use in a marine lifting environment where a payload must be lifted above a lower splash boundary in a body of water, comprising:
(a) a crane having a boom, a tension-carrying drum, and a top sheave;
(b) a short cable, having a first end and a second end;
(c) an advanced termination locked to said second end of said short cable;
(e) wherein said short cable with said advanced termination locked to said second end has passed a defined test criterion by the prior application of a defined test load applied through said advanced termination;
(f) a long cable, having a first end and a second end;
(g) wherein said first end of said short cable is joined to said second end of said long cable by an interwoven section, thereby creating a composite cable;
(h) said composite cable running from said payload over said top sheave and around said tension-carrying drum; and
(i) wherein a length of said short cable is selected to that said interwoven section is wound onto said tension-carrying drum before said payload is lifted above said lower splash boundary by said crane.

2. The marine lifting system as recited in claim 1 , wherein said advanced termination is locked to said second end of said short cable by potting.

3. The marine lifting system as recited in claim 2 , wherein a length of said short cable is selected so that said interwoven section and five turns of said short cable are wound onto said tension-carrying drum before said payload is lifted above said lower splash boundary by said crane.

4. The marine lifting system as recited in claim 3 , wherein said advanced termination is locked to said second end of said short cable using a two-party epoxy.

5. The marine lifting system as recited in claim 2 , wherein said advanced termination is locked to said second end of said short cable using a two-party epoxy.

6. The marine lifting system as recited in claim 2 , wherein said short cable and said long cable each comprise eight strands.

7. The marine lifting system as recited in claim 1 , wherein said advanced termination is locked to said second end of said short cable using a spike and cone connection.

8. The marine lifting system as recited in claim 7 , wherein a length of said short cable is selected so that said interwoven section and five turns of said short cable are wound onto said tension-carrying drum before said payload is lifted above said lower splash boundary by said crane.

9. The marine lifting system as recited in claim 1 , wherein a length of said short cable is selected so that said interwoven section and five turns of said short cable are wound onto said tension-carrying drum before said payload is lifted above said lower splash boundary by said crane.

10. The marine lifting system as recited in claim 1 , wherein said short cable and said long cable each comprise eight strands.

11. A marine lifting system configured for use in a marine lifting environment where a payload must be lifted above a lower splash boundary in a body of water, comprising:
(a) a crane having a boom, a tension-carrying drum, and a top sheave;
(b) a short cable, having a first end and a second end;
(c) an advanced termination locked to said second end of said short cable;
(e) wherein said short cable with said advanced termination locked to said second end has passed a defined test criterion by the prior application of a defined test load applied through said advanced termination;
(f) a long cable, having a first end and a second end;
(g) wherein said first end of said short cable is joined to said second end of said long cable by a joint, thereby creating a composite cable;
(h) said composite cable running from said payload over said top sheave and around said tension-carrying drum; and
(i) wherein a length of said short cable is selected to that said joint resides on said tension-carrying drum before said payload is lifted above said lower splash boundary by said crane.

12. The marine lifting system as recited in claim 11 , wherein said advanced termination is locked to said second end of said short cable by potting.

13. The marine lifting system as recited in claim 12 , wherein a length of said short cable is selected so that said interwoven section and five turns of said short cable are wound onto said tension-carrying drum before said payload is lifted above said lower splash boundary by said crane.

14. The marine lifting system as recited in claim 13 , wherein said advanced termination is locked to said second end of said short cable using a two-party epoxy.

15. The marine lifting system as recited in claim 12 , wherein said advanced termination is locked to said second end of said short cable using a two-party epoxy.

16. The marine lifting system as recited in claim 12 , wherein said short cable and said long cable each comprise eight strands.

17. The marine lifting system as recited in claim 11 , wherein said advanced termination is locked to said second end of said short cable using a spike and cone connection.

18. The marine lifting system as recited in claim 17 , wherein a length of said short cable is selected so that said interwoven section and five turns of said short cable are wound onto said tension-carrying drum before said payload is lifted above said lower splash boundary by said crane.

19. The marine lifting system as recited in claim 11 , wherein a length of said short cable is selected so that said interwoven section and five turns of said short cable are wound onto said tension-carrying drum before said payload is lifted above said lower splash boundary by said crane.

20. The marine lifting system as recited in claim 11 , wherein said short cable and said long cable each comprise eight strands.

Assignees

• Campbell Richard V
• Bright Tech Llc

Inventors

• Campbell Richard V

Classifications

• G01N3/08

  by applying steady tensile or compressive forces (G01N3/28 takes precedence) · CPC title

• G01L5/04 Primary

  for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands {(G01L5/0004 takes precedence)} · CPC title

• D07B1/185

  characterised by the eye construction · CPC title

• G01N2203/0016

  Tensile or compressive · CPC title

• B66D1/04

  manually operated · CPC title