Glass manufacturing – Processes of manufacturing fibers – filaments – or preforms – With measuring – controlling – sensing – programming – timing,...
Reexamination Certificate
2001-10-26
2011-10-18
Hoffmann, John (Department: 1741)
Glass manufacturing
Processes of manufacturing fibers, filaments, or preforms
With measuring, controlling, sensing, programming, timing,...
C065S397000, C065S384000, C065S415000, C065S399000
Reexamination Certificate
active
08037717
ABSTRACT:
A method of manufacturing an optical waveguide preform includes providing a first process gas atmosphere to a soot preform contained in a vessel. The first atmosphere is held in the vessel for a first reacting time sufficient to at least partially dope or dry the soot preform. The vessel is then at least partially refilled with a second doping or drying atmosphere. The second doping or drying atmosphere is held in the vessel for a second reacting time sufficient to further dope or dry the soot preform.
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Dawes Steven B.
Hawtof Daniel W.
Murtagh Michael T.
Rosettie John S.
Schermerhorn Andrew P.
Corning Incorporated
Hoffmann John
Homa Joseph M.
Mason Matthew J.
Wayland Randall S.
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