Method and apparatus for making, coating and cooling lightguide fiber
US4594088A · kind A · utility
16Cited by
9References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1985 |
| Grant date | Jun 10, 1986 |
| Priority date | — |
| Expiry date | May 28, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2205/55
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus (30) for cooling a lightguide fiber (21) drawn from a molten portion of a glass preform (22) located in a furnace (23). The apparatus (30) has an upper chamber (34) and a lower chamber (36) each having a small opening in the lower portions thereof. The upper chamber (34) has a heat transfer liquid (35) therein and the lower chamber (36) is pressurized to prevent liquid from passing through the opening. The hot fiber (21) is cooled by the liquid as it is drawn through liquid (35) without physical contact with the periphery of the openings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.