Liquid purification or separation – Sectional chamber press type – Medium clamped in joint
Patent
1990-05-14
1991-10-22
Dawson, Robert A.
Liquid purification or separation
Sectional chamber press type
Medium clamped in joint
210231, 210387, B01D 2909
Patent
active
050593188
ABSTRACT:
In a filtering device used for filtering slurries, or the like, and employing pressed together plate members separated by a filter media, there has been a problem in sealing the mating surfaces of the pressed together plates. In accord with the present invention a groove is provided on each of the plate members at their mating surfaces with the grooves at least partially aligned with each other. A fluid connection is provided to each of the grooves and a fluid at a desired pressure is separately applied to each of the grooves. The fluid pressures in each of the two grooves is different and selected to prevent leakage of slurry or slurry filtrate between the pressed together plates.
REFERENCES:
patent: 3437210 (1969-04-01), O'Neill
patent: 3443695 (1969-05-01), O'Neill
patent: 3499532 (1970-03-01), Schneider
patent: 3608734 (1971-09-01), Schneider
patent: 4233157 (1980-11-01), Miller
patent: 4267060 (1981-05-01), Miller
patent: 4664813 (1987-05-01), Schneider
Dawson Robert A.
Savage Matthew O.
Wasson George W.
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