Buffer tube design for easy and reliable access in mid-span
US6707973B2 · kind B2 · utility
9Cited by
11References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2001 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | May 1, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/443
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention is directed to a novel construction of buffer tubes for fiber optic cables which offers a way to access the optical fibers inside a buffer tube while reducing the risk of damaging the fibers, as sometimes occurs when cutting the outer layer of the buffer tube. A buffer tube for use in a fiber optic cable of the present invention comprises a tube having a tube wall, the wall having an inside and outside surface, wherein an inner portion of tube wall, nearest the inside surface, is made of a material having a higher notch-sensitivity than an outer portion of the tube wall nearest the outside surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.