Liquid purification or separation – Processes – Including controlling process in response to a sensed condition
Patent
1992-10-14
1993-12-14
Drodge, Joseph W.
Liquid purification or separation
Processes
Including controlling process in response to a sensed condition
210158, 210350, 210386, 210402, 210486, 210769, B01D 3344
Patent
active
052699455
ABSTRACT:
A method and apparatus for separating contaminating substances from a liquid containing contaminating substances in which the liquid is passed through a filter of resilient, porous filter material. The contaminating substances are separated from the liquid in the filter whereafter the filter is displaced to a position out of the liquid flow. In this displaced position, the filter material is compressed to squeeze out liquid retained in the filter together with separated substances retained in the filter by opposed frustoconical rollers. After the compression has ceased, the filter is moved to a position where the liquid once again passes through the filter material for renewed separation and accumulation of contaminating substances in the liquid.
REFERENCES:
patent: 1812736 (1931-06-01), Butler
patent: 1812736 (1931-06-01), Butler
patent: 1816132 (1931-07-01), Strindlund
patent: 3774760 (1973-11-01), Beristain et al.
patent: 4056473 (1977-11-01), Nilsson
patent: 4092247 (1978-05-01), Madsen
patent: 4310424 (1982-01-01), Fremont et al.
patent: 4648970 (1987-03-01), Hermansson
patent: 4902410 (1990-02-01), Botsch
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