Twisted pair cable
US6222129A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1998 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Mar 27, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L27/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A twisted pair cable which is exceptionally suitable for high frequency signal transmission. One embodiment provides a twisted pair cable having two conductors with a foamed dielectric surrounding each conductor, and having a center-to-center conductor spacing at any point along a 1000 ft. cable that varies .+-.0.03 times the average of the center-to-center conductor. Another embodiment provides a twisted pair cable having two conductors with a foamed dielectric surrounding each conductor, and having an impedance of 90 to 110 ohms with a tolerance of .+-.5% of an average impedance. The preferred twisted pair cable has their dielectrics joined along the entire length thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.