Liquid purification or separation – Plural distinct separators – Filters
Patent
1978-09-21
1980-11-25
Spitzer, Robert H.
Liquid purification or separation
Plural distinct separators
Filters
210409, 210499, B01D 2302
Patent
active
042357241
ABSTRACT:
A waste water treatment system comprises a plurality of screens presenting descending flow surfaces and means defining a flow conduit for waste water or sewage arranged below the upper limits of said flow surfaces. The construction of the flow conduit is such to induce an upflow of the waste water by way of openings therein which are constantly open to means which direct the waste water to the upper ends of said screens in a manner to provide a substantially equal volumetric flow to and over each of said screens.
REFERENCES:
patent: 187966 (1877-03-01), Cook
patent: 1165741 (1915-12-01), Amos
patent: 2029655 (1936-02-01), Coulter
patent: 2312764 (1943-03-01), Lubke
patent: 2395508 (1946-02-01), Seddig
patent: 2557064 (1951-06-01), Alexander
patent: 3452876 (1969-07-01), Ginaven
patent: 3833123 (1974-09-01), Walker
Bloom Jerome P.
Spitzer Robert H.
The Bauer Bros. Co.
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