Is a
Patent attributes
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Steven R Wagner0
Raymond E Fraley0
Steven R Burdette0
Date of Patent
June 15, 2010
0Patent Application Number
119748730
Date Filed
October 16, 2007
0Patent Primary Examiner
Patent 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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