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US 10,373,739 B2Granted
Carbon nanotube shielding for transmission cables
AssigneeThe Boeing Company
InventorsZeaid F. Hasan, Jade M. Brown, Daniel J. Braley, Jacob Battat, John H. Belk, Joseph B. Harriman
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Abstract
A transmission cable may include a conductor core, an insulator layer surrounding the conductor core, and a shielding layer surrounding the insulator layer, wherein the shielding layer includes a carbon nanotube sheet material.
Claims20
A cable comprising:
- a conductor core;
- an insulator layer surrounding said conductor core;
- and
- a shielding layer surrounding said insulator layer, wherein said shielding layer comprises a carbon nanotube sheet material comprising:
- a permeable carrier material formed from one of a woven fabric and a nonwoven fabric, said carrier material comprising a first surface and a second surface;
- and
- discontinuous carbon nanotubes that are entangled together to form a nonwoven network, wherein said nonwoven network of said discontinuous carbon nanotubes is compressably coupled to said first surface of said carrier material;
- and
- a metallic coating that is applied to said second surface of said carrier material.
6 more elements
A cable comprising:
- a conductor core, wherein said conductor core comprises a carbon nanotube sheet material;
- an insulator layer surrounding said conductor core;
- and
- a shielding layer surrounding said insulator layer, wherein said shielding layer comprises said carbon nanotube sheet material;
- and
- wherein said carbon nanotube sheet material comprises:
- a permeable carrier material formed from one of a woven fabric and a nonwoven fabric, said carrier material comprising a first surface and a second surface, opposite said first surface;
- discontinuous carbon nanotubes that are entangled together to form a nonwoven network, wherein said nonwoven network of said discontinuous carbon nanotubes is compressably coupled to said first surface of said carrier material and shields against electromagnetic interference at frequencies greater than approximately one hundred megahertz;
- and
- a metallic coating that is applied to said second surface of said carrier material, wherein said metallic coating shields against said electromagnetic interference at frequencies between approximately zero hertz and one hundred megahertz.
7 more elements
A method for making a cable comprising:
- placing an insulator layer to surround a conductor core;
- and
- wrapping a carbon nanotube sheet material around said insulator layer to form a shielding layer surrounding said insulator layer and said conductor core, said carbon nanotube sheet material comprising:
- a permeable carrier material formed from one of a woven fabric and a nonwoven fabric, said carrier material comprising a first surface and a second surface, opposite said first surface;
- and
- discontinuous carbon nanotubes that are entangled together to form a nonwoven network, wherein said nonwoven network of said discontinuous carbon nanotubes is compressably coupled to first surface of said carrier material;
- and
- a metallic coating that is applied to said second surface of said carrier material.
5 more elements
Dependencies are inferred from the claim text.