Two-pole powered ruggedized optical fiber cable and method and apparatus for forming the same
US4579420A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1983 |
| Grant date | Apr 1, 1986 |
| Priority date | — |
| Expiry date | Jun 16, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4488
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A two-pole ruggedized optical fiber cable suitable for use in communication applications is described. The cable has a core assembly comprising a sealed inner copper alloy tube in which at least one optical fiber is encapsulated. Surrounding the core assembly is a layer of dielectric material, an outer metallic tube and, if needed, a protective jacket. The outer tube's primary function is to serve as the cable's primary strength member. The outer tube is preferably formed from a high strength, non-ferrous alloy having a relatively low modulus of elasticity. The outer tube is preferably a drawn tube having a substantially straight axial seam. If added hermeticity is required, the outer tube seam may be sealed. A process and apparatus for fabricating the cable is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.