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

• US 10,204,719 B2
• Filed: 12/16/2015
• Issued: 02/12/2019
• Est. Priority Date: 11/06/2004
• Status: Expired due to Fees

• 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:
  US14/970,672
• Publication Number:
  US 20160099091A1
• Time in Patent Office: 1,154 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

The present invention includes a high performance communications cable that provides for wireless fidelity applications and includes core support-separators having profiles which define a clearance to maintain spacing and/or channel between the transmission media and power conductors. The core may 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 multimedia communications cable comprising:

at least one interior support, said support comprising a central region and outwardly extended portions extending from said central region, said extended portions providing a plurality of channels for receiving and providing spacing among electrical conductor cables and data transmission media disposed individually in the high performance multimedia communications cable;

wherein at least one of said plurality of channels comprises at least one data transmission cable and at least one other channel comprises at least one limited power electrical conductor cable, wherein said at least one limited power electrical conductor cable is capable of carrying up to 30 watts of power and configured to carry an operating voltage from a power source to one or more power media dependent interface devices connected to the communications cable; and

wherein said at least one interior support further comprises a polymeric material and a plurality of additives distributed within said polymeric material.

2. The high performance communication cable of claim 1, wherein the at least one interior support further comprises an inner layer and an outer layer;

wherein the inner layer comprises a solid or a foamed first polymeric material and wherein the outer layer comprises a second polymeric material different from said first polymeric material.

3. The high performance communication cable of claim 2, wherein the plurality of additives is distributed within the outer layer.

4. The high performance communications cable of claim 2, wherein the inner layer comprises any of a polyolefin, a polyurethane, a polyethylene, a polypropylene, and a combination thereof.

5. The high performance communications cable of claim 2, wherein the outer layer comprises any of a fluoropolymer, an olefin and a blend thereof.

6. The high performance communications cable of claim 1, wherein said polymeric material comprises any of a fluoropolymer, an olefin and a blend thereof.

7. The high performance communications cable of claim 6, wherein the fluoropolymer is FEP or MFA.

8. The high performance communications cable of claim 1, wherein said at least one limited power electrical conductor cable comprises a wire gauge size greater than 20.

9. The high performance communications cable of claim 1, wherein said additives comprise a metal oxide.

10. The high performance communications cable of claim 1, wherein said additives provide electromagnetic shielding of the at least one communications conductor disposed in channels of the interior support from one another.

11. The high performance communications cable of claim 1, wherein said interior support comprises a metalized exterior surface.

12. The high performance communications cable of claim 11, wherein said exterior metalized surface is formed by sputtering a metal on a polymeric surface of the interior support.

13. The high performance communications cable of claim 1, further comprising any of a sheet or a tape wrapped around the external surface of said interior support, so as to enclose said interior support and said transmission media disposed in said channels, so as to shield said transmission media from electromagnetic interference at frequencies of at least 1 GHz.

14. The high performance communications cable of claim 1, further comprising a jacket surrounding said sheet or tape.

15. The high performance communications cable of claim 14, wherein said jacket comprises a thermoplastic, a polyvinyl chloride, a fluoropolymer, a polyolefin, or a thermoset material.

21. The support-separator of claim 2, wherein said second polymeric material comprises a halogenated polymeric material.

16. A support-separator for a multimedia communications cable comprising:

a separator comprising a polymeric material and having a plurality of outwardly extended portions providing a plurality of channels for receiving and providing spacing among individually disposed electrical conductors and data transmission media in the multimedia communications cable; and

a plurality of metal oxide additives distributed within said outwardly extended portions for electromagnetic shielding of a data transmission medium disposed in one channel from an electrical conductor disposed in another channel;

wherein said electrical conductor comprises at least one limited power electrical conductor cable that carries an operating voltage of up to 30 watts of power to one or more power media dependent interface devices connected to the communications cable.

17. The support-separator of claim 16, wherein said at least one electrical conductor cable comprises a wire gauge size greater than 20.

18. The support-separator of claim 16, wherein said polymeric material comprises any of a fluoropolymer, an olefin, and a blend thereof.

19. The support-separator of claim 18, wherein the fluoropolymer is FEP or MFA.

20. The support-separator of claim 16, further comprising an electromagnetic shield wrapped about the exterior surface of said separator, so as to enclose said exterior surface and said transmission media disposed in said channels, so as to shield said transmission media from electromagnetic interference at frequencies of at least 1 GHz.

22. A system comprising:

a power media dependent interface device;

a power source; and

a high performance multimedia communications cable connected to the power media dependent interface device, the cable comprising;

at least one interior support, said support comprising a central region and outwardly extended portions extending from said central region, said extended portions providing a plurality of channels for receiving and providing spacing among electrical conductor cables and data transmission media disposed individually in the high performance multimedia communications cable, said at least one interior support further comprising a polymeric material and a plurality of additives distributed within said polymeric material;

wherein at least one of said plurality of channels comprises at least one data transmission cable and at least one other channel comprises at least one limited power electrical conductor cable, said at least one limited power electrical conducting cable being capable of carrying up to 30 watts of power to provide an operating voltage from the power source to the power media dependent interface device.