Method of manufacturing a preform for use in drawing glass fibers
US3980461A · kind A · utility
8Cited by
11References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 13, 1975 |
| Grant date | Sep 14, 1976 |
| Priority date | — |
| Expiry date | Feb 13, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B37/014
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing a preform from which glass fibers are to be drawn including making a groove in a first cladding glass element, filling the groove with core glass, grinding or otherwise finishing the surface of the cladding element and the core glass to a flat surface and optically contacting a second cladding glass element to the finished surface of said first cladding glass element thereby covering the core glass material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.