Liquid purification or separation – Flow – fluid pressure or material level – responsive – Filter cleaning
Patent
1977-11-14
1980-07-08
Hart, Charles N.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Filter cleaning
210143, 210206, 210258, 210275, 210281, 210284, 210170, 210293, 210311, B01D 2316, B01D 2318
Patent
active
042116554
ABSTRACT:
An upflow filter usable with a home sewage treatment plant, and including a container therefor. The container comprises a dividing wall extending thereacross dividing it into first and second filtering chambers, each of which has a grating therein serving to divide each filtering chamber into top and bottom portions. Each grating is adapted to support thereon a filtering media. The container has an inlet and an outlet, with there being provided a vertical opening or passage in the dividing wall in communication with said inlet, and with such passage having lateral exit openings communicating the vertical passage with the respective filtering chamber, adjacent the bottom thereof. A well is provided in the dividing wall downstream from the vertical passage. Another portion of the dividing wall along its top surface downstream from the well defines a conduit, such conduit being adapted to receive liquid from the first and second filtering chambers thereinto, and removable means in the conduit for providing weirs therein, for providing for the entrance of liquid into the conduit from said filtering chambers. Other removable means are provided for selectively connecting the conduit to either the well or to the aforementioned outlet.
REFERENCES:
patent: 584736 (1897-06-01), Goodhue
patent: 964694 (1910-07-01), Richert
patent: 1465968 (1923-08-01), Caps
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.
patent: 3950252 (1976-04-01), Jordan et al.
Hart Charles N.
Hruskoci Peter A.
Jet Aeration Company (Jet Inc.)
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