发明名称 |
Movable submersible dam barrier for use in a glass forming chamber |
摘要 |
A vented submersible dam barrier for use in a glass forming chamber to selectively interrupt the flow of glass supporting molten metal is disclosed. The disclosed barrier includes a dense inner body and an outer cover or shell with a space or interstices within the shell through which gases may move to an end of the dam barier at which there is mounted a facility for venting the enclosed portion of the dam barrier. Venting may be provided into a space above the surface of the pool of molten metal in which the dam barrier is placed.
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申请公布号 |
US4099952(A) |
申请公布日期 |
1978.07.11 |
申请号 |
US19770816424 |
申请日期 |
1977.07.18 |
申请人 |
PPG INDUSTRIES, INC. |
发明人 |
SCHWENNINGER, RONALD L. |
分类号 |
C03B18/16;C03B18/18;(IPC1-7):C03B18/02 |
主分类号 |
C03B18/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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