Glass-tube extended-baking process
US8230702B2 · kind B2 · utility
3Cited by
16References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2011 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | May 23, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a method of heat treating quartz glass deposition tubes at between 900° C. and 1200° C. for at least 115 hours. The resulting deposition tubes are useful in forming optical preforms that can yield optical fibers having reduced added loss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.