Method for coating optical transmission glass fibers

Details Method for coating optical transmission glass fibers Method for coating optical transmission glass fibers

1983-09-06

1985-04-23

Lusignan, Michael R.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

Electrostatic and/or electromagnetic attraction or...

65 34, 118308, 118320, 118325, 118326, 118621, 427163, 427424, 427425, B05B 502, B05C 502, B05D 506

Patent

active

045122814

ABSTRACT:
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.

REFERENCES:
patent: 4354451 (1982-10-01), Vohringer et al.
patent: 4378728 (1983-04-01), Berkmann

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