Bushing for drawing glass fibers
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United States of America Patent
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Issued Date -
Sep 25, 2003
app pub date -
Jan 24, 2003
filing date -
Jan 28, 2002
priority date (Note) -
Abandoned
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Abstract
A bushing for drawing glass fibers and its use. The bushing is made of at least two different metallic materials from the group comprising platinum, platinum-iridium alloy, platinum-ruthenium alloy, and platinum-rhodium alloy, such that ';(a) the sidewalls are made of platinum or platinum-iridium alloy or platinum-ruthenium alloy or platinum-rhodium alloy, (b) the tip(s) are made of platinum or platinum-rhodium alloy, (c) the power supply terminals are made of platinum or platinum-rhodium alloy, and (d) the tip plate is made of platinum-iridium alloy or platinum-ruthenium alloy or platinum-rhodium alloy. If the sidewalls and the tip plate are made of platinum-iridium or platinum-ruthenium alloy, they have a coating of platinum or platinum-rhodium alloy at least on their exterior surface.
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