Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition
Patent
1996-10-29
1998-08-11
Pyon, Harold Y.
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
422100, 422102, 422103, 422104, 21032175, 21032184, 210406, 2104161, 210455, 604406, B01D 6300, B01L 1100
Patent
active
057924252
ABSTRACT:
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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Clark Phillip
Foley Brian D.
Pitt Aldo M.
Millipore Coporation
Pyon Harold Y.
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