Communication cables including colored conductors or fibers and methods for making and using the same
US7193155B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2003 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Dec 20, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B7/361
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A communications apparatus for transmitting various communication signals is described. The communications apparatus contains at least two conductors or fibers where the first conductor or fiber comprises a first color and the second conductor or fiber comprises a second color having a lighter tint of the first color. In an embodiment of the invention, using this scheme of a dark shade of a color for one of the conductors or fibers and a lighter color for the other conductor or fiber, the conductors or fibers can always be identified as a pair even after they have been untwisted (and even when the remaining pairs in the cable become untwisted). The invention does not use bandmarks or stripes in the insulation of the second conductor, thereby avoiding the accompanying limitations associated with bandmarks and stripes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.