Method of filtering thixotropic fluids and filter apparatus for

Details Method of filtering thixotropic fluids and filter apparatus for Method of filtering thixotropic fluids and filter apparatus for

1994-07-12

1996-12-17

Hruskoci, Peter A.

Liquid purification or separation

Processes

Separating

210806, 210314, 210315, 2103232, 210437, 210490, 21049701, B01D 2707, B01D 3700

Patent

active

055850090

ABSTRACT:
A filter assembly in housing 11 into which a thixotropic fluid is injected for filtration comprises filter layer 14c that is positioned along the central axis and which has the finest mesh, said filter layer 14c being surrounded successively in order by middle filter layer 14b having the next finest mesh and outer filter layer 14a of a coarse mesh. The thixotropic fluid injected into the housing passes through layers 14a, 14b and 14c in that order, whereby the fluid flows out of the housing through one stage of filtration steps.

REFERENCES:
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patent: 3384241 (1968-05-01), Nostrand
patent: 3450632 (1969-06-01), Olson et al.
patent: 3800945 (1974-04-01), Fowler
patent: 3950251 (1976-04-01), Hiller
patent: 4147632 (1979-04-01), Oder
patent: 4514302 (1985-04-01), van Zon et al.
patent: 5122270 (1992-06-01), Ruger et al.
patent: 5269921 (1993-12-01), Ruger et al.
patent: 5275743 (1994-01-01), Miller et al.
patent: 5348660 (1994-09-01), Fujikata

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