C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
117/56, 32/60, 4
C03C 17/04 (2006.01) B05D 1/10 (2006.01) C03B 37/014 (2006.01) C03B 37/027 (2006.01)
Patent
CA 1170924
Abstract of the Disclosure 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 material the exterior surface of the starting member to form a coating thereon. The coating is longitudinal translate while simultaneously additional particulate material is applied to the coating to form a preform body with , the preform body thereafter being longitudinally translated. While longitudi- nally 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 predeter- mined desired cross sectional composition variation of the resulting preform. The so formed preform body may thereafter be suitably heated, consolidated, and drawn into an optical waveguide.
378667
Corning Glass Works
Gowling Lafleur Henderson Llp
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