Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent
1985-12-23
1988-07-05
Fisher, Richard V.
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
55 59, 55199, 21032168, 21032187, 210782, 210784, 422101, 436178, B01D 1300
Patent
active
047553006
ABSTRACT:
The present invention provides significant improvements in the design and performance of a specific type of Rotary Membrane Filter (RMF) apparatus which has the capability of separating particles from a fluid having the same and nearly the same density as the particles by utilizing shear to achieve separation, not centrifugal forces. A particular application for the apparatus is in the processing of fluid suspensions in which the suspensions contain fragile particles which are subject to damage due to excessive shear stresses. The prior art describes processing at constant shear rate, whereas the present invention provides the design and optimization of operation of such an apparatus at constant shear stress, which is maintained at a value below that at which significant damage to the fragile particles is encountered. The use of the invention in plasmapheresis (blood separations) is described in detail, it being understood that the teachings of the invention are also directly applicable to other fluids containing fragile particles.
The application of the RMF in a continuous flow processing system designed to extract blood plasma from a donor is described, including return of corpuscular components to the donor.
REFERENCES:
patent: 1664769 (1928-04-01), Chance
patent: 2197509 (1940-04-01), Reilly et al.
patent: 2398233 (1946-04-01), Lincoln
patent: 2709500 (1955-05-01), Carter
patent: 3026871 (1962-03-01), Thomas
patent: 3183908 (1965-05-01), Collins et al.
patent: 3355382 (1967-11-01), Huntington
patent: 3396103 (1968-08-01), Huntington
patent: 3400074 (1968-09-01), Grenci
patent: 3491887 (1970-01-01), Maestrelli
patent: 3567030 (1971-03-01), Loeffler
patent: 3568835 (1971-03-01), Hansen
patent: 3674440 (1972-07-01), Kitrilakis
patent: 3705100 (1972-12-01), Blatt
patent: 3750885 (1973-08-01), Fournier
patent: 3771658 (1973-11-01), Brumfield
patent: 3771899 (1973-11-01), Brumfield
patent: 3821108 (1974-06-01), Manjikian
patent: 3830372 (1974-08-01), Manjikian
patent: 3883434 (1975-05-01), Gayler
patent: 4212741 (1980-07-01), Brumfield
patent: 4212742 (1980-07-01), Solomon et al.
patent: 4214990 (1980-07-01), Joh
Brumfield Robert C.
Fischel Richard J.
Fisher Richard V.
Haefliger William W.
Haemonetics Corporation
Jones W. Gary
LandOfFree
Couette membrane filtration apparatus for separating suspended c does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Couette membrane filtration apparatus for separating suspended c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Couette membrane filtration apparatus for separating suspended c will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2330985