Filtration apparatus and process

Details Filtration apparatus and process Filtration apparatus and process

1991-12-16

1993-02-02

Spear, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210651, 210247, B01D 6120

Patent

active

051835690

ABSTRACT:
An improved filtration apparatus useful in particular for sampling a bulk, fluid, is provided. Advantageously, the filtration apparatus provides an air gap between a filtrate and the filtration medium. As a result, a bulk fluid is protected against potential contamination from the filtrate side of the filtration medium. Also provided is a technique for reducing filtration medium fouling, and for filtrate collection upon demand. Apparatus in accordance with the present invention, is useful, for example, in conjunction with monitoring urea concentration during dialysis.

REFERENCES:
patent: 2696818 (1954-12-01), Vah Loghem
patent: 3630378 (1971-12-01), Bauman
patent: 3705100 (1972-12-01), Blatt et al.
patent: 4212742 (1980-07-01), Solomon et al.
patent: 4276176 (1981-06-01), Shorr
patent: 4631130 (1986-12-01), Watanabe
patent: 4753733 (1988-06-01), Ramstack
patent: 5015388 (1991-05-01), Pusineri et al.

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