B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
30/16, 36/16, 32
B05B 15/04 (2006.01) C03B 37/02 (2006.01) C03C 25/10 (2006.01) C03C 25/14 (2006.01)
Patent
CA 1204937
METHOD FOR COATING OPTICAL TRANSMISSION GLASS FIBERS Abstract of the Disclosure A method and apparatus for coating optical transmission glass fibers with a resinous composition. A vessel is provided through which a glass fiber is drawn. While it is being drawn through the vessel, the fiber is spun, and a resin coating is applied. In order to maintain the air pressure within the vessel fairly constant, an exhaust vent is provided through which excess particles of the resinous composition may escape. Turbulence is thus substantially reduced preventing the fiber from swinging and allowing the particles to be sprayed smoothly. Further, the particles may be electrically charged so that they are both attracted to the optical fiber and repel one another during flight. The invention employs both of these features to produce a uniform coat on an optical transmission glass fiber.
435833
Tsuneishi Katsuyuki
Yamanishi Toru
Yoshida Masaaki
Riches Mckenzie & Herbert Llp
Sumitomo Electric Industries Ltd.
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