发明名称 |
Method of making tubular vials and ampules |
摘要 |
The present invention relates to a new method of making tubular vials and ampules from glass tubing. The method according to this invention is essentially characterized in that the glass tubing used is closed at both ends and has a dot-shaped opening close to one of the sealed ends. The opening can be sealed by a film to prevent impurities from entering the glass tubing. Throughout the operational process in the production of vials and ampules, a slight excess pressure exists in the glass tubing by applying heat, which further prevents impurities from entering the glass tubing.
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申请公布号 |
US4516998(A) |
申请公布日期 |
1985.05.14 |
申请号 |
US19830552321 |
申请日期 |
1983.11.16 |
申请人 |
SCHOTT-RUHRGLAS GMBH |
发明人 |
RITT, HANS-GEORG;LUNEBERG, HARTMUT;MANNL, REINHARD;GRILLMEIER, ALFRED |
分类号 |
C03B23/11;(IPC1-7):C03B23/18 |
主分类号 |
C03B23/11 |
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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