Cable
US-2015144375-A1 · May 28, 2015 · US
Communication cable
US11062822B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11062822-B2 |
| Application number | US-201716472304-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 21, 2017 |
| Priority date | Dec 21, 2016 |
| Publication date | Jul 13, 2021 |
| Grant date | Jul 13, 2021 |
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- Title
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- Abstract
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- Assignees and inventors
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- Key dates
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
A communication cable that includes a twisted wire pair that includes a pair of insulated wires that are twisted together and that each include a conductor and an insulating covering that covers an outer periphery of the conductor; and a sheath that is made of an insulating material and continuously covers an entire outer periphery of the twisted wire pair about a center along a longitudinal axis of the twisted wire pair, wherein the sheath has a dielectric loss tangent of 0.0001 or more in a frequency range of 1 to 50 MHz.
First claim
Opening claim text (preview).
The invention claimed is: 1. A communication cable comprising: a twisted wire pair that includes a pair of insulated wires that are twisted together and that each include a conductor and an insulating covering that covers an outer periphery of the conductor; and a sheath that is made of an insulating material and continuously covers an entire outer periphery of the twisted wire pair about a center along a longitudinal axis of the twisted wire pair, wherein the twisted wire pair covered by the sheath is only one twisted wire pair, and the sheath continuously covers the entire outer periphery of the only one twisted wire pair, the insulating covering includes only one layer, the one layer having a smaller dielectric loss tangent than the sheath has in a frequency range of 1 to 50 MHz, and the sheath has a dielectric loss tangent of 0.0001 or more in the frequency range of 1 to 50 MHz, the conductor has a breaking elongation of 7% or more and a twist pitch of the twisted wire pair is 15 times or more of an outer diameter of each of the insulated wires, or the conductor has a breaking elongation of less than 7% and a twist pitch of the twisted wire pair is 25 times or leas of the outer diameter of each of the insulated wires. 2. The communication cable according to claim 1 , wherein the dielectric loss tangent of the sheath is 0.08 or less in the frequency range of 1 to 50 MHz. 3. The communication cable according to claim 1 , wherein the sheath includes an outer layer and an inner layer that is disposed inside the outer layer, and a dielectric loss tangent of the outer layer is larger than a dielectric loss tangent of the inner layer. 4. The communication cable according to claim 1 , wherein the insulating covering has a dielectric loss tangent of 0.001 or less in the frequency range of 1 to 50 MHz. 5. The communication cable according to claim 1 , wherein the insulating covering has a dielectric loss tangent of 0.0006 or less in the frequency range of 1 to 50 MHz.
Assignees
Inventors
Classifications
- H01B3/441Primary
from alkenes · CPC title
Arrangements for exhibiting specific transmission characteristics · CPC title
- H01B7/18Primary
Protection against damage caused} by wear, mechanical force or pressure; {Sheaths; Armouring · CPC title
using a water impermeable sheath · CPC title
electric {constitutive elements} · CPC title
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Frequently asked questions
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- What does patent US11062822B2 cover?
- A communication cable that includes a twisted wire pair that includes a pair of insulated wires that are twisted together and that each include a conductor and an insulating covering that covers an outer periphery of the conductor; and a sheath that is made of an insulating material and continuously covers an entire outer periphery of the twisted wire pair about a center along a longitudinal ax…
- Who is the assignee on this patent?
- Autonetworks Technologies Ltd, Sumitomo Wiring Systems, Sumitomo Electric Industries
- What technology area does this patent fall under?
- Primary CPC classification H01B3/441. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 13 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).