Method and apparatus for exhausting optical fiber preform tubes
US4278459A · kind A · utility
15Cited by
5References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 3, 1980 |
| Grant date | Jul 14, 1981 |
| Priority date | — |
| Expiry date | Mar 3, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B37/01884
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Methods and apparatuses are disclosed for exhausting reaction products from an optical fiber preform tube and for choking off the preform tube during collapse wherein an exhaust tube (40) is provided with an entry end (41) located adjacent and in fluid communication with a downstream end (10') of a preform tube (10), suction applied to the exhaust tube (40), and a stream of reaction product agitating gas free of reaction products introduced into the exhaust tube (40) at a location adjacent the exhaust tube entry end (41).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.