Filtering apparatus for liquids

Details Filtering apparatus for liquids Filtering apparatus for liquids

1976-05-17

1978-10-03

Scovronek, Joseph

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Check valve

210274, 210275, 210293, 210541, B01D 2318, B01D 2324

Patent

active

041183223

ABSTRACT:
A filter for cleaning a flow of liquid including a tank divided into upper and lower chambers by a support element for a filter material bed. In one embodiment, the support element includes a corrugated plate which may be either self-supporting or supported by a header and, in another embodiment, the support element includes a flat plate supported by beam elements which in turn may be supported by the header. Another feature of the filter is the provision of an influent filter liquid inlet assembly including a self-closing passage which normally opens into the tank upper chamber and which closes when the upper tank chamber is filled to a predetermined level with backwash fluid during reverse flow backwashing of the filter bed.

REFERENCES:
patent: 826654 (1906-07-01), Firth
patent: 2303808 (1942-12-01), Wolcott

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