Quartz glass envelope tube
US4437727A · kind A · utility
9Cited by
9References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 3, 1982 |
| Grant date | Mar 20, 1984 |
| Priority date | — |
| Expiry date | Jun 3, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1317
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A quartz glass envelope tube for the preparation of a light guide fiber blank, the tube being in the form of a laminate in which the inner layer consists essentially of quartz glass made from rock crystal and the outer layer of synthetic quartz glass. Good mechanical properties, especially tensile strength, are thereby achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.