Submicron disc filters

Details Submicron disc filters Submicron disc filters

1986-10-31

1988-09-27

Fisher, Richard V.

Liquid purification or separation

Casing divided by membrane into sections having inlet

Energy recovery from treated liquid

210346, 210486, 210488, 55484, 248 94, B01D 2504

Patent

active

047740000

ABSTRACT:
A precision filter for accomplishing filtering of precision of submicron order. A filter element of the filter consists of a plurality of superposed disc-shaped annular support members for filter membranes. Each support member has a radially outwardly extending intermediate section located between an annular boss section and an outer frame section. The intermediate section is formed on its upper and lower sides with a plurality of gently winding elongate ridges and largely winding elongate ridges. Each largely winding elongate ridge extends from the boss section to the outer frame section, but each gently winding elongate ridge located between the two largely winding elongate ridges is separate from the boss section thereby to form two elongate winding grooves which are joined and continuous to a central opening of the boss section. The thus formed support member intermediate section is sealingly covered with the filter membrane so that filtrate flows along the elongate winding grooves to reach the boss section central opening.

REFERENCES:
patent: 2630228 (1953-03-01), Wright et al.
patent: 2697524 (1954-12-01), Foust
patent: 3343681 (1967-09-01), Madden
patent: 3397785 (1968-08-01), Jaruis et al.
patent: 3398834 (1968-08-01), Nuttall et al.
patent: 4501663 (1985-02-01), Merrill

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