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US 11,820,696 B2Granted
Optical fiber draw furnace system and method
AssigneeCorning Incorporated
InventorsTammy Michelle Hoffmann, John Michael Jewell, Nikolaos Pantelis Kladias
Life of this patent
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Abstract
An optical fiber draw system and method of operating thereof. The method includes positioning a downfeed handle for supporting an optical fiber preform within a furnace such that the downfeed handle is movable within the furnace. The method further includes operating one or more heating elements to thermally heat at least a portion of an upper muffle extension disposed within the furnace, the one or more heating elements being moveable with the downfeed handle.
Claims15
An optical fiber draw furnace system comprising:
- a muffle comprising an upper muffle extension and forming an inner cavity;
- a downfeed handle moveably positioned within the inner cavity;
- and
- an upper heater comprising one or more heating elements moveable with the downfeed handle within the inner cavity, the one or more heating elements comprising a first heating element and a second heating element, the first heating element configured to heat the downfeed handle separately from and independently of the second heating element.
1 more element
Dependencies are inferred from the claim text.