Apparatus for producing multi-component glass fiber preform
US4388098A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Feb 26, 1982 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | Feb 26, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2207/40
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for producing a multi-component glass fiber preform includes a multi-conduit burner 31 having five concentric conduits 31a-31e, the center three conduits (a), (b) and (c) being flush with each other at their ends, the fourth conduit d, interposed between the third (c) and outermost conduit (e) extends axially beyond the first three. The burner has a flange 33 to direct the flame onto a substrate. In operation glass raw material is fed through the inner-most conduit (a) by a carrier gas. The material emitted from conduits (a -d) is mixed in a mixing area 32. Glass raw material and a nebulized dopant salt solution are emitted and burned with hydrogen gas depositing particulate glass material or soot on an adjacent substrate to produce a multi-component glass fiber preform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.