Method and apparatus for homogenizing a glass melt
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United States of America Patent
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Jun 15, 2010
Grant Date -
Feb 21, 2008
app pub date -
Oct 16, 2007
filing date -
Aug 31, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention is directed toward a method of reducing contamination of a glass melt by oxide particulates, such as particulates of platinum oxide, which may condense on the inside surfaces of a stir chamber, particularly the stir shaft, and fall back into the glass melt. The method includes causing a flow of gas through an annular space between the shaft and the chamber cover. In one embodiment, the flow of gas through the annular space is caused by drawing a vacuum in the chamber. An apparatus for practicing the method is also provided.
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