High performance support-separators for communications cables providing shielding for minimizing alien crosstalk

• US 10,204,720 B2
• Filed: 02/25/2016
• Issued: 02/12/2019
• Est. Priority Date: 11/06/2004
• Status: Active Grant

• Current Assignee: Cable Components Group, LLC (Berkshire Hathaway Incorporated)
• Original Assignee: Cable Components Group, LLC (Berkshire Hathaway Incorporated)
• Inventors: Glew, Charles A.
• Primary Examiner(s): Mayo, III, William H
• Application Number:
  US15/053,636
• Publication Number:
  US 20160211055A1
• Time in Patent Office: 1,083 Days
• Field of Search: 174110 R, 174113 R, 174113 C
• CPC Class Codes: G02B 6/4416 Heterogeneous cables
• CPC Class Codes: G02B 6/443 Protective covering
• CPC Class Codes: G02B 6/4434 Central member to take up tensile loads
• CPC Class Codes: H01B 11/06 with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
• CPC Class Codes: H01B 11/08 Screens specially adapted for reducing cross-talk
• CPC Class Codes: H01B 11/22 Cables including at least one electrical conductor together with optical fibres
• CPC Class Codes: H01B 3/441 from alkenes
• CPC Class Codes: H01B 3/443 from vinylhalogenides or other halogenoethylenic compounds
• CPC Class Codes: H01B 3/445 from vinylfluorides or other fluoroethylenic compounds
• CPC Class Codes: H01B 7/295 using material resistant to flame

Abstract

High performance communications cables can provide for wireless fidelity applications. A communications cable can include core support-separators having profiles which define a clearance to maintain spacing and/or channel between the transmission media and power conductors. The core can be formed of a conductive or insulative material that have, principally, polymer blends that include olefin and/or fluoropolymer and/or chlorofluoropolymer based resins. The polymer blends can also be utilized for fabricating shielding materials. The core support-separators have both a central region as well as a plurality of shaped sections that extend outward from the central region that are either solid or partially solid, foamed or foamed with a solid skin surface.

Claims

1. A high performance communication cable comprising:

an interior support extending along a longitudinal length of said communication cable, said interior support comprising a center region and a plurality of anvil shaped sections extending from said center region;

wherein said center region and said plurality of anvil shaped sections define a plurality of clearance channels for receiving transmission media;

wherein at least one of said anvil shaped sections comprises a flap-top; and

wherein at least one of said plurality of clearance channels comprises an optical fiber cable and at least one other channel comprises a limited power metal conductor disposed therein, the limited power metal conductor being capable of receiving voltages up to 60 volts D.C. and carrying up to 30 watts of power.

2. The high performance communication cable of claim 1, wherein one of said channels has a substantially closed geometry.

3. The high performance communication cable of claim 2, wherein each of two of said anvil shaped sections comprises a flap-top and said substantially closed channel is partially defined by portions of said flap-tops.

4. The high performance communication cable of claim 3, wherein the channel having a substantially closed geometry comprises said optical fiber cable.

5. The high performance communication cable of claim 1, wherein the interior support further comprises any of a solid and a foamed polymeric material.

6. The high performance communication cable of claim 1, wherein the interior support comprises any of a polyolefin, a polyurethane, a polyethylene, a polypropylene, and a combination thereof.

7. The high performance communication cable of claim 5, wherein the solid or the foamed polymeric material comprises a halogenated polymeric material.

8. The high performance communication cable of claim 7, wherein said halogenated polymeric material comprises a fluoropolymer.

9. The high performance communication cable of claim 8, wherein the fluoropolymer is FEP or MFA.

10. The high performance communication cable of claim 1, further comprising a jacket surrounding said interior support.

11. The high performance communication cable of claim 10, wherein the jacket comprises a thermoplastic, a polyvinyl chloride, a fluoropolymer, a polyolefin, or a thermoset material.

12. The high performance communication cable of claim 1, comprising five anvil shaped core support-separator sections, wherein four of the five clearance channels are configured for placement of metal conductors and a fifth channel is configured for placement of said optical fiber cable.

13. The high performance communication cable of claim 1, wherein each of said clearance channels is semi-circular in cross sectional geometry.

14. The high performance communication cable of claim 1, further comprising a strength member in the center region that runs along the length of the communication cable.

15. The high performance communication cable of claim 14, wherein said strength member comprises a polyethylene, a textile, a metallic material, or a fiberglass.