Method of producing glass of optical quality
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United States of America Patent
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N/A
Issued Date -
Sep 4, 2008
app pub date -
Oct 30, 2007
filing date -
Oct 30, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Glass is produced by depositing presintering composition on a preform set into move in front of a plasma torch which moves back and forth substantially parallel to a longitudinal direction of the preform, a first feed duct feeds the plasma with grains of the presintering composition while optionally a second feed duct feeds the plasma with a fluorine or chlorine compound, preferably a fluorine compound, mixed with a carrier gas.
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