Optical fiber cable for easy access to ripcords and having ripcord reliability
US6563991B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2000 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Jun 13, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4433
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical fiber cable includes ripcords that are oriented in particular locations with reference to radial strength members and any armor overlap included in a housing for optical fibers. The ripcords are spaced 180° from each other and preferably 90° from the armor overlap region. Color coded or marked ripcords are also placed adjacent to RSMs, with color coding or other marking on external surfaces of the housing to indicate a pull direction for respective ripcords. The ripcords may be extruded with the RSM into a jacket housing or disposed in a grooved section formed into the RSM. Pairs of RSMs may also be disposed on opposite sides of a ripcord to protect the ripcord from being accidentally severed by cutting instruments during servicing of the cable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.