Glass manufacturing – Processes of manufacturing fibers – filaments – or preforms – With measuring – controlling – sensing – programming – timing,...
Reexamination Certificate
2005-08-02
2005-08-02
Hoffmann, John (Department: 1731)
Glass manufacturing
Processes of manufacturing fibers, filaments, or preforms
With measuring, controlling, sensing, programming, timing,...
C065S382000, C065S432000, C065S491000, C065S484000, C118S688000, C118S694000, C427S008000, C427S009000, C427S010000, C427S163200, C427S407200
Reexamination Certificate
active
06923023
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.
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Hong Siu-Ping
Kenkare Nirupama
Shiroishi Jason W.
Fitel U.S.A. Corporation
Hoffmann John
Sutherland & Asbill & Brennan LLP
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