Upflow filter

Liquid purification or separation – Particulate material type separator – e.g. – ion exchange or... – With rehabilitation means

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Details

405 36, 210170, 210284, 210286, 210293, 210311, B01D 2316, B01D 2318

Patent

active

RE0299960

ABSTRACT:
An upflow filter adapted to be used with a home sewage treatment plant which includes a container which has a wall extending thereacross to divide the container into first and second filtering chambers. First and second gratings are located in the first and second chambers respectively and serve to divide each filtering chamber into top and bottom portions and each grating has filtering media covering the same. The container has an inlet and an outlet with the outlet located at a lower level from the inlet. [First liquid conduit means are connected to the wall and provides for fluid communication from the inlet to the bottom portions of each of the first and second filtering chambers. Second liquid] A vertical opening is cast into the dividing wall and has lateral exit portions that communicate with the bottom portions of the first and second filtering chambers. The liquid inlet communicates with this vertical opening. Liquid conduit means are connected to the wall and provides for fluid communication from the top portion of each of the first and second filtering chambers to the outlet. A variation of the invention involves the providing of a cut out in the dividing wall so that filtered material will exit both filtering chambers in the event the filter is not set or installed perfectly level. The foregoing abstract is merely a resume of one general application and is not a complete discussion of all principles of operation or applications and is not to be construed as a limitation on the scope of the claimed subject matter.

REFERENCES:
patent: 964694 (1910-07-01), Richert
patent: 1465968 (1923-08-01), Cap
patent: 2760643 (1956-08-01), Schaaf
patent: 2785123 (1957-03-01), Stroud
patent: 3134735 (1964-05-01), Greenleaf, Jr.
patent: 3642134 (1972-02-01), Reckers
patent: 3771655 (1973-11-01), Hudson, Jr.

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