发明名称 |
Vacuum filter device |
摘要 |
A vacuum filter device is disclosed which includes a filter body which is adapted to receive in fluid-tight, sealed relationship a pair of closed containers for solutions to be filtered by a membrane filter positioned within the filter body. A vacuum port in the filter body communicates with the downstream side of the membrane and a venting passageway also located in the filter body communicates with the closed sample container to serve as a vent to atmospheric pressure. The venting passageway is made of an air permeable hydrophobic filter or preferably a small enough opening to prevent the sample solutions from leaking out of the device during normal use.
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申请公布号 |
US5792425(A) |
申请公布日期 |
1998.08.11 |
申请号 |
US19960739265 |
申请日期 |
1996.10.29 |
申请人 |
MILLIPORE COPORATION |
发明人 |
CLARK, PHILLIP;FOLEY, BRIAN D.;PITT, ALDO M. |
分类号 |
B01D29/01;B01D29/05;B01D36/00;B01D61/18;B01D61/20;B01D63/08;B01L3/00;B29C65/08;(IPC1-7):B01D63/00;B01L11/00 |
主分类号 |
B01D29/01 |
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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