Liquid purification or separation – Casing divided by membrane into sections having inlet – Each section having inlet
Patent
1998-06-30
2000-02-01
Fortuna, Ana
Liquid purification or separation
Casing divided by membrane into sections having inlet
Each section having inlet
2104161, 2104163, 22218906, 2223216, 222336, 222200, 422101, B01D 6300
Patent
active
060198990
ABSTRACT:
Currently microfiltration devices use hydrophillic membranes to sterilize liquids. Air locks may develop on the upstream side of the filter membrane within these apparatus. The present invention provides a method and apparatus for removing an air lock from the upstream side of a microfilter in a device for dispensing a sterile liquid from a storage container by forcing the liquid through a microfilter. The device comprises a first inlet passageway communicating between the storage container and a chamber on the upstream side of the filter closable by a first valve, a second outlet passageway communicating between the storage container and a chamber on the upstream side of the filter closable by a second valve, and the method comprises the steps of: a) creating a partial vacuum in the chamber upstream of the microfilter to thereby open the first valve and draw the liquid from the storage container through the first passageway into the chamber and into contact with the upstream side of the filter; b) closing the first and second valves and increasing the air pressure in the upstream chamber; and c) opening the second valve thereby releasing air under pressure from the upstream chamber through the second passageway.
REFERENCES:
patent: 4463880 (1984-08-01), Kramer et al.
patent: 4533068 (1985-08-01), Meierhoefer
patent: 4714550 (1987-12-01), Malson et al.
patent: 4938389 (1990-07-01), Rossi et al.
patent: 4940542 (1990-07-01), Simizu et al.
patent: 5074440 (1991-12-01), Clements et al.
patent: 5120438 (1992-06-01), Nakagawa et al.
patent: 5130015 (1992-07-01), Simizu et al.
patent: 5785858 (1998-07-01), Webb
WO 92/04004 (WEBB) Mar. 19, 1992.
Fortuna Ana
Webb Garth T.
LandOfFree
Method and apparatus for removing air locks within manually oper does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for removing air locks within manually oper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for removing air locks within manually oper will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-934804