METHOD AND APPARATUS FOR COATING A FIBER BUNDLE
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United States of America Patent
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Issued Date -
Aug 5, 2010
app pub date -
Nov 17, 2009
filing date -
Feb 3, 2009
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Abstract
A method and an apparatus for coating a fiber bundle, the fiber bundle comprising at least three fibers and the method comprising guiding the fiber bundle to travel through a first and a second chamber formed by means of a first, a second and a third nozzle part of a nozzle means, whereby coating material is fed to the fiber bundle through the chambers. The fibers of the fiber bundle are kept separate from each other in the first nozzle part, so that the coating material gets to penetrate between the fibers in the first chamber; the fibers are guided into a position against each other in the second nozzle part, so that the coating material surrounds the uniform fiber bundle in the second chamber; and the fiber bundle is guided onwards through the third nozzle part to provide the final fiber bundle diameter.
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