SYSTEM AND METHOD FOR POSITIONING AN OPTICAL PREFORM IN A FURNACE
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United States of America Patent
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Jul 24, 2017
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Jul 29, 2016
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Abstract
A system for positioning an optical preform in a furnace is provided that includes an upper muffle and a downfeed handle assembly with a tube defining a first end and a second end, the second end extending into the upper muffle. A handle is disposed within the tube. A second end of the handle extends into the upper muffle and a seal assembly is positioned around both the tube and the handle. The first end of the handle extends through the seal assembly and a drive assembly is coupled with the downfeed handle.
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