Apparatus for evacuating air from curing area of UV lamps for fiber-like substrates
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United States of America Patent
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Aug 24, 1999
Issued Date -
N/A
app pub date -
Jun 3, 1997
filing date -
Jan 11, 1996
priority date (Note) -
Expired
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Abstract
The invention provides a device for blocking the ingress of air on the surface of a moving member such as an optical fiber. The blocking of air is achieved by the establishment of a low pressure zone at the entry point of the fiber, the lower pressure zone being created by the injection of an inert gas in a direction opposite the direction of travel of the fiber. The invention is particularly useful in preventing the ingress of air into a UV curing apparatus for curing the ink on an optical fiber. There is also provided a method for reducing such ingress of air.
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