Waterproof optical fiber cable
US4703997A · kind A · utility
28Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1985 |
| Grant date | Nov 3, 1987 |
| Priority date | — |
| Expiry date | Feb 5, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B7/288
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical fiber cable comprising a water blocking layer, an optical fiber disposed inside the water blocking layer and a water blocking material filling the space between the water blocking layer and the optical fiber, the water blocking material having an apparent viscosity (as measured in accordance with JIS K 2220-1980, 5.15 at 40.degree. C., and a shear rate of 10 sec..sup.-1) of lower than 25,000 poise and also having a worked penetration (as measured in accordance with JIS K 2220-1980, 5.3 at 25.degree. C.) of 150 to 450.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.