Glass manufacturing – Processes – Fining or homogenizing molten glass
Reexamination Certificate
2007-10-16
2010-06-15
Halpern, Mark (Department: 1791)
Glass manufacturing
Processes
Fining or homogenizing molten glass
C065S135300, C065S346000, C065S178000
Reexamination Certificate
active
07735340
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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Burdette Steven R
Fraley Raymond E
Wagner Steven R
Able Kevin M.
Corning Incorporated
Halpern Mark
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