Fiber optic cable with non-corrugated armor shielding
US6665478B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 13, 2000 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Dec 26, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4433
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fiber optic cable is fabricated with a non-corrugated armor tube which reduces the amount of material needed for the armoring while maintaining adequate cable flexibility. The outer diameter (OD) of the armor tube has a relationship with the thickness (t) of an outer jacket and intervening layers disposed about the tube such that 2t≦OD≦10t. If the tube is formed from a metal tape, sufficiently flexibility is provided as long as the outer diameter is less than 10t. The tube and outer jacket are loosely adhered to maintain flexibility, and the bending strain is maintained at less than 87.5% of the maximum bending strain for the cable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.