Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1980-06-02
1982-01-12
Fisher, Richard V.
Glass manufacturing
Processes
Forming product or preform from molten glass
65144, 65 182, 118729, 118730, 264 15, 264 27, 425224, 427163, C03B 37025, C03B 37075
Patent
active
043103391
ABSTRACT:
A substantially continuous method of and apparatus for forming an article suitable for an optical waveguide preform wherein the starting member is continuously removed is disclosed. The preform is formed by providing a starting member or bait and applying the particulate material to the exterior surface of the starting member to form a coating thereon. The coating is longitudinally translated while simultaneously additional particulate material is applied to the coating to form a preform body with the preform body thereafter being longitudinally translated. While longitudinally translating the preform body and applying additional particulate material to the end thereof, the starting member is continuously removed from the preform body leaving a longitudinal aperture remaining in the preform body. The particulate material may be applied by one or more burners, the output of which may be controlled to provide a predetermined desired cross sectional composition variation of the resulting preform body. The so formed preformed body may thereafter be suitably heated, consolidated, and drawn into an optical waveguide.
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patent: 4230472 (1980-10-01), Schultz
Corning Glass Works
Fisher Richard V.
Zebrowski Walter S.
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