Methods and apparatuses for controlling optical fiber primary coating diameter
US6923023B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Oct 1, 2002 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Jan 29, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C25/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Methods and apparatuses estimate and control optical fiber primary coating diameter for wet-on-wet optical fiber manufacturing. The primary coating diameter for a particular length of optical fiber is calculated based upon a measurement of the weight of primary and/or secondary coating material consumed during optical fiber manufacturing. Control of the primary coating diameter is effected by a coating controller which can increase or decrease the primary coating diameter through control of glass temperature, coating viscosity and/or other parameters during wet-on-wet fiber manufacture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.