| 发明名称 |
VACUUM REFINING OF GLASS OR THE LIKE WITH ENHANCED FOAMING |
| 摘要 |
Foaming of molten glass or the like as it enters a vacuum refining vessel is enhanced by altering the incoming stream so as to increase its surface area and/or retarding the passage of the stream through the vacuum headspace so as to increase its exposure to the vacuum. |
| 申请公布号 |
ZA8803789(B) |
申请公布日期 |
1990.01.31 |
| 申请号 |
ZA19880003789 |
申请日期 |
1988.05.26 |
| 申请人 |
PPG INDUSTRIES, INC. |
发明人 |
RONALD LEE SCHWENNINGER;WRIGHT MONTGOMERY WELTON;BOYD STEPHEN DAWSON;JOSEPH MICHAEL MATESA;LARRY JOHN SHELESTAK |
| 分类号 |
C03B5/12;C03B5/20;C03B5/225 |
主分类号 |
C03B5/12 |
| 代理机构 |
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代理人 |
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| 地址 |
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