发明授权
- 专利标题： Bell of opaque fused silica
- 专利标题（中）： 不透明熔融二氧化硅的钟
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申请号： US467998申请日： 1983-02-18
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公开(公告)号： US4497277A公开(公告)日： 1985-02-05
- 发明人: Karl A. Schulke
- 申请人： Karl A. Schulke
- 申请人地址： DEX Hanau am Main
- 专利权人： Heraeus-Quarzschmelze
- 当前专利权人： Heraeus-Quarzschmelze
- 当前专利权人地址： DEX Hanau am Main
- 优先权： DEX3208381 19820309
- 主分类号： C01B33/035
- IPC分类号： C01B33/035 ; C23C14/56 ; C23C16/44 ; C23C13/08
摘要：
A bell made of opaque fused silica and intended for use in the deposition of polycrystalline silicon is assembled from at least three individual sections. The sections are joined to one another at end flanges with gaskets between the flanges. The lengths of the individual sections are determined by the temperature distribution along the bell in use.
公开/授权文献
- US5710702A Apparatus for transmitting information for vehicle 公开/授权日：1998-01-20