Vacuum degassing apparatus and vacuum degassing method for molten glass
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United States of America Patent
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Jun 25, 2013
Grant Date -
Dec 27, 2012
app pub date -
Aug 31, 2012
filing date -
Feb 27, 2008
priority date (Note) -
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Abstract
A vacuum degassing apparatus for molten glass is comprised of an uprising pipe, a vacuum degassing vessel, a downfalling pipe, an upstream side pit that supplies molten glass to the uprising pipe, and a downstream side pit that receives molten glass from the downfalling pipe. The vacuum degassing apparatus for molten glass is further comprised of a separating mechanism that separates a part of molten glass moving from the downfalling pipe to the downstream side pit, and a returning pipe that returns separated molten glass to the upstream side pit.
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