Dry fiber optic assemblies and cables
US7231119B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2004 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | Jul 6, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4403
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A tube assembly of the present invention has at least one subunit with at least one dry insert generally surrounding the subunit which may be disposed within a tube, thereby forming a tube assembly. The subunit includes a fiber optic ribbon and a sheath, wherein the sheath is tight-buffered about the fiber optic ribbon, thereby inhibiting buckling of the ribbon during temperature variations. Additionally, the tube assembly can be a portion of a fiber optic cable having a sheath that may include a plurality of strength members and a cable jacket. In other embodiments, the subunits and dry insert are disposed within a cavity, thereby forming a tubeless cable. Additionally, subunits may include a marking indicia for denoting the security level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.