Air blown fiber (ABF) tube cable with central innerduct
US6101304A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1998 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Oct 28, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/44384
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fiber optic cable assembly with enhanced flexibility and reduced installation cost in contrast to conventional multiple duct systems. The fiber optic cable assembly comprises a central innerduct adapted to provide a pathway for installing conventional cable by pulling of the cable therethrough. A plurality of air blown fiber (ABF) tubes are positioned around the circumference of the central innerduct for installing air blown optical fiber bundles therethrough, and a plurality of strength elements are provided around the circumference of the central innerduct and interposed among the plurality of air blown fiber (ABF) tubes. A layer of water-blocking material is provided between an outer jacket and the air blown fiber (ABF) tubes and strength members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.