公开(公告)号：EP1074292A8

公开(公告)日：2001-06-06

申请号：EP00121976

申请日：1996-05-16

申请人： MILLIPORE INVEST HOLDINGS LTD

发明人： CLARK PHILLIP ,  FOLEY BRIAN D ,  PITT ALDO M

IPC分类号： B01D29/01 ,  B01D29/05 ,  B01D36/00 ,  B01D61/18 ,  B01D61/20 ,  B01D63/08 ,  B01L3/00 ,  B29C65/08

CPC分类号： B01D63/087 ,  B01D29/012 ,  B01D29/05 ,  B01D36/001 ,  B01D61/18 ,  B01D61/20 ,  B01D63/081 ,  B01D2201/204 ,  B01L3/502 ,  B01L3/50255 ,  B29C65/08 ,  B29C65/561 ,  B29C66/1142 ,  B29C66/54 ,  B29C66/5412 ,  B29C66/543 ,  B29C66/71 ,  B29C66/727 ,  B29C66/7392 ,  B29C66/73921 ,  B29K2001/12 ,  B29L2031/14 ,  B29K2077/00 ,  B29K2023/10 ,  B29K2069/00 ,  B29K2027/18 ,  B29K2023/06 ,  B29K2081/06 ,  B29K2027/16 ,  B29K2023/12 ,  B29K2001/00

摘要： A vacuum filter device is disclosed which includes a filter body (11) which is adapted to receive in fluid-tight, sealed relationship a pair of closed containers (15,16) for solutions to be filtered by means of a membrane filter positioned within the filter body. A vacuum port (23) in the filter body (11) communicates with the downstream side of the membrane and a vent passageway (60;70) also located in the filter body (11) communicates with the closed sample container to serve as a vent to atmospheric pressure. The vent passageway is sealed by an air permeable hydrophobic filter to prevent the sample solutions from leaking out of the device during normal use.