Flexible armored communication cable and method of manufacture

• US 6,255,592 B1
• Filed: 04/29/1999
• Issued: 07/03/2001
• Est. Priority Date: 05/04/1998
• Status: Expired due to Term

• Current Assignee: Capro Limited
• Original Assignee: Game and Technology Co., Ltd
• Inventors: Askins, Doug, Pennington, Barry
• Primary Examiner(s): Kincaid, Kristine
• Assistant Examiner(s): Nguyen, Chau N.
• Application Number:
  US09/301,986
• Time in Patent Office: 796 Days
• Field of Search: 174/102.R, 174/103, 174/105.R, 174/106.R, 174/108
• US Class Current: 174/103
• CPC Class Codes: E21B 17/206 with conductors, e.g. electrical, optical
• CPC Class Codes: G02B 6/4432 with fibre reinforcements
• CPC Class Codes: H01B 7/046 attached to objects sunk in bore holes, e.g. well drilling means, well pumps
• CPC Class Codes: H01B 7/226 Helicoidally wound metal wires or tapes
• CPC Class Codes: H01R 43/00 Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors of trolley lines B60M1/28
• CPC Class Codes: H01R 9/0503 Connection between two cable ends

Abstract

An armored flexible communication cable includes a central core member. Armor wire is formed into spaced apart coils and wrapped around the central core member to affix the position of the elongated central core member with respect to the wrapped outer armor and to provide crush protection for the central core member.

Claims

1. A long, flexible, armored communication cable comprising:

an elongated central core member including a substantially cylindrical non-metallic compressible outer jacket;

at least one outer armor wire member, said at least one outer armor wire member including preformed, spaced apart coils; and

said preformed, spaced apart coils being wrapped around said non-metallic compressible outer jacket to affix the position of said non-metallic compressible outer jacket with respect to said preformed, spaced apart coils to provide crush protection for said elongated central core member;

wherein the ratio of the outer diameter of the long, flexible, armored communication cable to the thickness of said at least one outer armor wire member is between about 4;

1 to about 11;

1.

2. The long, flexible, armored communication cable as defined in claim 1, wherein said ratio of the outer diameter of the long, flexible, armored communication cable to the thickness of said at least one outer armor wire member is 6.15:

1.

3. The long, flexible, armored communication cable as defined in claim 1, wherein said at least one outer armor wire member is flattened before being formed into said preformed coils.

4. The long, flexible, armored communication cable as defined in claim 1, wherein the position of said non-metallic compressible outer jacket is affixed with respect to said preformed, spaced apart coils by compressing said non-metallic compressible outer jacket.

5. The long, flexible, armored communication cable as defined in claim 4, wherein said compression of said non-metallic compressible outer jacket is caused by an interference fit between the inside diameter of said at least one outer armor wire member and the outer diameter of said non-metallic compressible outer jacket.

6. The long, flexible, armored communication cable as defined in claim 1, wherein the position of said non-metallic compressible outer jacket is affixed with respect to said preformed, spaced apart coils by the application of glue between the outside of said non-metallic compressible outer jacket and the inside of said at least one outer armor wire member.

7. The long, flexible, armored communication cable as defined in claim 1, wherein the position of said non-metallic compressible outer jacket is affixed with respect to said preformed, spaced apart coils by forming indentations in said at least one outer armor wire member.

8. A long, flexible, armored communication cable comprising:

an elongated central core member including a substantially cylindrical non-metallic compressible outer jacket;

said elongated central core member including at least one wire;

at least one outer armor wire member, said at least one outer armor wire member including preformed spaced apart coils; and

said preformed, spaced apart coils being wrapped around said non-metallic compressible outer jacket to affix the position of said non-metallic compressible outer jacket with respect to said preformed, spaced apart coils to provide crush protection for said elongated central core member;

at least one exposed portion on the long, flexible, armored communication cable formed by removing at least a portion of said at least one outer armor wire member to expose said elongated central core member;

means for sensing a physical parameter such as vibration, noise, pressure, liquid level, temperature, or radiation connected to said central core member at said at least one exposed portion;

wherein the ratio of the outer diameter of the long, flexible, armored communication cable to the thickness of said at least one outer armor wire member is between about 4;

1 to 11;

1.

9. The long, flexible, armored communication cable as defined in claim 8, wherein said ratio of the outer diameter of the long, flexible, armored communication cable to the thickness of said at least one outer armor wire is 6.15:

1.

10. The long, flexible, armored communication cable as defined in claim 8, wherein said at least one outer armor wire member is flattened before being formed into said preformed coils.

11. The long, flexible, armored communication cable as defined in claim 8, wherein the position of said non-metallic outer jacket is affixed with respect to preformed, spaced apart coils by compressing said non-metallic compressible outer jacket.

12. The long, flexible, armored communication able as defined in claim 11, wherein said compression of said non-metallic compressible outer jacket is caused by an interference fit between the inside diameter of said at least one outer armor wire member and the outer diameter of said non-metallic compressible outer jacket.

13. The long, flexible, armored communication cable as defined in claim 8, wherein the position of said non-metallic compressible outer jacket is affixed with respect to said preformed, spaced apart coils by the application of glue between the outside of said non-metallic compressible outer jacket and the inside of said at least one outer armor wire member.

14. The long, flexible, armored communication cable as defined in claim 8, wherein the position of said non-metallic compressible outer jacket is affixed with respect to said preformed, spaced apart coils by forming indentations in said at least one outer armor wire member.