Apparatus for forming a porous glass preform
US5116400A · kind A · utility
22Cited by
10References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1990 |
| Grant date | May 26, 1992 |
| Priority date | — |
| Expiry date | Sep 20, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Apparatus for rapidly forming a porous glass preform is provided in which an array of burners is oscillated along a path parallel to the longitudinal axis of the preform. The oscillation amplitude is limited so that each burner deposits soot on only a portion of the preform, e.g., 20% of the preform. By controlling inter-burner variability and the air flow in the burner-array/preform region, preforms having substantially uniform diameter and axial properties are obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.