Optical cable having waved metal tube, and method and apparatus for producing the same
US7088894B2 · kind B2 · utility
6Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2004 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | Aug 15, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53996
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical cable having a metal tube receiving an optical fiber and bent to form a waved shape is disclosed. The optical cable may prevent cutoff of the optical fiber or deterioration of optical characteristics though tensile force is applied to the optical cable in its longitudinal direction since the metal is formed in a waved shape. To bend the metal tube, the metal tube is passed through roller pair(s) which are shaken in a direction perpendicular to the advancing direction of the metal tube. Thus, it is possible to obtain excess fiber length (EFL) easily and accurately as desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.