发明名称 |
Method and apparatus for filling a rigid closed volume through a septum |
摘要 |
A container having a fixed volume sealed from the atmosphere by an elastic septum is filled with liquid via a needle inserted through the septum, the needle providing a path for liquid flow into the fixed volume from an external source through the septum and a path for air flow from the fixed volume to atmosphere through the septum. The needle includes a stem having a hollow tube with a non-cylindrical section and a cover element cooperating with the non-cylindrical section of the tube to form an air passage and give the stem a cylindrical configuration even in the region of the non-cylindrical section of the tube. The configuration of the stem minimizes damage to the septum as the stem is inserted through or withdrawn from a septum, while the air passage permits air to exit from the container through the stem as liquid enters the container through the tube.
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申请公布号 |
US6149266(A) |
申请公布日期 |
2000.11.21 |
申请号 |
US19980074214 |
申请日期 |
1998.05.07 |
申请人 |
LEXMARK INTERNATIONAL, INC. |
发明人 |
COOK, WILLIAM PAUL |
分类号 |
B41J2/175;(IPC1-7):B41S2/175 |
主分类号 |
B41J2/175 |
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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