Composite cable containing light waveguides and electrical conductors
US5189718A · kind A · utility
173Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1991 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Apr 2, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4432
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a cable in which one tube holding light waveguides is connected by a plastic web to another tube holding metallic current carrying conductors. When buried in the earth, the cable may be located by means of a magnetic field produced by the current carrying conductors, but the cable retains the advantage of the tube carrying the light waveguides being dielectric.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.