Filter and filter medium used in said filter

Details Filter and filter medium used in said filter Filter and filter medium used in said filter

1994-04-13

1995-07-18

Silverman, Stanley S.

Liquid purification or separation

Filter

Movable medium

210387, 100120, B01D 3304

Patent

active

054338514

ABSTRACT:
A filter designed in compact form and requiring low filtration cost, by which there is no need to replace filter each time it becomes clogged and for which no liquid for backwashing is required, and with which is possible to filter under liquid pressure. In the filter, two ends of a filtering segment with a predetermined length of a filter medium in an oblong tube shape are movably and closely squeezed and held by a pair of opposing pressure rollers. A raw liquid introducing pipe is closely squeezed and held between a pair of pressure rollers, a forward end of the raw liquid introducing pipe is disposed within the range of the filtering segment of the tube-like filter medium. The filter medium is moved to the filtering segment constantly or when the filter medium is clogged, and the clogged filter medium is moved beyond the range of the filtering segment.

REFERENCES:
patent: 2313702 (1943-03-01), Allen
patent: 2691446 (1954-10-01), Murray
patent: 3169922 (1965-02-01), Hornbostel
patent: 4676902 (1987-06-01), Fayoux et al.
patent: 4681688 (1987-07-01), Sondov et al.
patent: 5008007 (1991-04-01), Anderson
patent: 5320753 (1994-06-01), Keillor, III et al.

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