Multi-axial electrically conductive cable with multi-layered core and method of manufacture and use

• US 20060011376A1
• Filed: 07/16/2004
• Published: 01/19/2006
• Est. Priority Date: 07/16/2004
• Status: Abandoned Application

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Rose, Robert Ivan Jr., Van Den Berg, David Charles
• Application Number:
  US10/892,490
• Publication Number:
  US 20060011376A1
• Time in Patent Office: Days
• US Class Current: 174/120.R
• CPC Class Codes: H01B 11/1834 Construction of the insulation between the conductors
• CPC Class Codes: H01R 2103/00 Two poles
• CPC Class Codes: H01R 24/562 Cables with two screens
• CPC Class Codes: H01R 43/28 for wire processing before connecting to contact members, not provided for in groups H01R43/02 - H01R43/26

Abstract

A multi-axial electrically conductive cable having a multi-layered core. The multi-layered core comprises one layer of insulating dielectric material and at least one additional layer of insulating dielectric material. The multiple layers of the core are separable and allow the multi-axial electrically conductive cable to be utilized in several electrical connections of varying impedances and different sized connections.

Claims

1. A multi-axial electrically conductive cable comprising:

a center conductor, wherein said conductor is adapted to transmit a first electrical signal;

a multi-layered, non-conducting dielectric core, the multi-layered, non-conducting dielectric core surrounding the center conductor;

at least one non-grounded conductive shield surrounding the multi-layered, non-conducting core, wherein said shield is adapted to transmit a second electrical signal; and

at least one non-conducting insulator surrounding the at least one conductive shield.

2. The multi-axial electrically conductive cable of claim 1, wherein the center conductor comprises an electrically conductive material.

3. The multi-axial electrically conductive cable of claim 1, wherein the center conductor comprises at least one of a solid metal layer and a twisted wire layer.

4. The multi-axial electrically conductive cable of claim 1, wherein the center conductor comprises 7-stranded steel wire clad with copper and covered with silver.

5. The multi-axial electrically conductive cable of claim 1, wherein the multi-layered non-conducting dielectric core comprises a first layer of dielectric material and at least one additional layer of dielectric material.

6. The multi-axial electrically conductive cable of claim 5, wherein said first layer of non-conducting dielectric material is selected from a group consisting of polytetrafluoroethylene, fluorinated ethylene propylene, ethylene tetrafluoroethylene copolymer, perfluoroalkoxy copolymer, polyvinylidene fluoride, fluoropolymer, polyvinyl chloride, and polyurethane.

7. The multi-axial electrically conductive cable of claim 5, wherein said first layer of dielectric material comprises polytetrafluoroethylene.

8. The multi-axial electrically conductive cable of claim 5, wherein the at least one additional layer is selected from a group consisting one of fluorinated ethylene propylene, ethylene tetrafluoroethylene copolymer, perfluoroalkoxy copolymer, polyvinylidene fluoride, fluoropolymer, polyvinyl chloride, and polyurethane.

9. The multi-axial electrically conductive cable of claim 5, wherein the at least one additional layer comprises fluorinated ethylene propylene.

10. The multi-axial electrically conductive cable of claim 5, wherein the at least one additional layer is separable from the first layer of dielectric material.

11. The multi-axial electrically conductive cable of claim 5, wherein the at least one additional layer is separable because of method of manufacture.

12. The multi-axial electrically conductive cable of claim 5, wherein the first layer and the at least one additional layer are formed by a process selected from the group comprising extrusion, tape wrap, and weave process.

13. The multi-axial electrically conductive cable of claim 5, wherein the first layer and the at least one additional layer are formed by extrusion.

14. The multi-axial electrically conductive cable of claim 5, wherein the melting point of the at least one additional layer is lower than the melting point of the first layer.

15. The multi-axial electrically conductive cable of claim 5, wherein the melting point of fluorinated ethylene propylene is lower than the melting point of polytetrafluoroethylene.

16. The multi-axial electrically conductive cable of claim 5, wherein each layer of the multi-layered non-conducting dielectric core can be stripped and crimped to fit different electrical assemblies.

17. The multi-axial electrically conductive cable of claim 1, wherein the at least one conductive shield is comprised of an electrically conductive material.

18. The multi-axial electrically conductive cable of claim 17, wherein the conductive shield comprises silver-covered, copper-clad steel wire.

19. The multi-axial electrically conductive cable of claim 17, wherein the at least one conductive shield is conductive and selected from the group consisting of braided wire, solid metal, and foil.

20. The multi-axial electrically conductive cable of claim 17, wherein the at least one conductive shield comprises silver-covered, copper-clad braided steel wire.

21. The multi-axial electrically conductive cable of claim 17, wherein the at least one conductive shield comprises at minimum one shield to form a coaxial cable.

22. The multi-axial electrically conductive cable of claim 1, wherein the at least one non-conducting insulator is selected from a group consisting one of polytetrafluoroethylene, fluorinated ethylene propylene, ethylene tetrafluoroethylene copolymer, perfluoroalkoxy copolymer, polyvinylidene fluoride, fluoropolymer, polyvinyl chloride, and polyurethane.

23. The multi-axial electrically conductive cable of claim 22, wherein the at least one non-conducting insulator comprises fluorinated ethylene propylene.

24. A method of manufacture of a multi-axial electrically conductive cable, the multi-axial electrically conductive cable comprising a center conductor, a multi-layered, non-conducting dielectric core, at least one conductive shield, and at least one non-conducting insulator, the method comprising:

providing center conductor;

providing a multi-layered, non-conducting dielectric core;

providing at least one conductive shield; and

providing at least one non-conducting insulator;

wherein the step of providing a multi-layered, non-conducting dielectric core comprises providing a first layer of dielectric material and at least one additional layer of dielectric material, and the at least one additional layer is separable from the first layer of dielectric material.

25. The method of claim 24, wherein the step of providing the multi-layered, non-conducting dielectric core is process selected from the group comprising least one of extrusion, tape wrapping, and weaving.

26. The method of claim 24, wherein the step of providing the multi-layered, non-conducting dielectric core comprises forming the multi-layered, non-conducting dielectric core from a dielectric material selected from the group comprising at least one of polytetrafluoroethylene, fluorinated ethylene propylene, ethylene tetrafluoroethylene copolymer, perfluoroalkoxy copolymer, polyvinylidene fluoride, fluoropolymer, polyvinyl chloride, and polyurethane.

27. The method of claim 24, wherein the step of providing the multi-layered, the first layer of dielectric material and the at least one additional layer of dielectric material.

28. The method of claim 24, wherein the step of providing the multi-layered, non-conducting dielectric core comprises providing the first layer of dielectric material having a higher melting point than and the melting point of the at least one additional layer of dielectric material.

29. A method of use of a multi-axial electrically conductive cable with multi-layered core, the multi-axial electrically conductive cable with multi-layered core comprising a center conductor, a multi-layered non-conducting dielectric core surrounding the center conductor, the multi-layered non-conducting dielectric core comprising a first layer of dielectric material and at least one additional layer of dielectric material, at least one conductive shield surrounding the multi-layered non-conducting dielectric core, and at least one non-conducting insulator, the method comprising:

determining a length for the outer conductor;

removing the outer insulation to the length thus exposing the outer conductor;

determining a length of inner insulation;

removing outer conductor to expose the multi-layered non-conducting dielectric core;

determining a length for inner conductor;

removing the multi-layered non-conducting dielectric core to expose the inner conductor;

crimping braided outer conductor.

30. The method of claim 29, wherein the steps of said removing provides the cable for varying electrical assemblies of different amperages.

31. The method of claim 29, further comprises providing an elastomer seal that protects the cable against moisture.

32. A multi-axial electrically conductive cable comprising:

a center conductor adapted to transmit a first electrical signal;

a multi-layered, non-conducting dielectric core, the multi-layered, non-conducting dielectric core surrounding the center conductor;

at least one non-grounded conductive shield surrounding the multi-layered, non-conducting core, wherein said shield is adapted to transmit a second information signal; and

at least one non-conducting insulator surrounding the at least one conductive shield;

wherein the multi-layered non-conducting dielectric core comprises a first layer of dielectric material and at least one additional layer of dielectric material, and said first layer of non-conducting dielectric material selected from a group consisting of polytetrafluoroethylene, fluorinated ethylene propylene, ethylene tetrafluoroethylene copolymer, perfluoroalkoxy copolymer, polyvinylidene fluoride, fluoropolymer, polyvinyl chloride, and polyurethane;

wherein the at least one additional layer of the multi-layered non-conducting core is selected from a group consisting of fluorinated ethylene propylene, ethylene tetrafluoroethylene copolymer, perfluoroalkoxy copolymer, polyvinylidene fluoride, fluoropolymer, polyvinyl chloride, and polyurethane;

wherein the at least one additional layer of the multi-layered non-conducting core is separable from the first layer of dielectric material.