Liquid purification or separation – Plural distinct separators – Filters
Patent
1976-02-26
1978-04-18
Spear, Jr., Frank A.
Liquid purification or separation
Plural distinct separators
Filters
210411, B01D 3516
Patent
active
040850510
ABSTRACT:
A self-cleaning filter for cleaning liquids from suspended matter comprises a container with filtering partitions which divide said container into parallel sections for the contaminated liquid and into a cleaned-liquid section located between the first two sections. Each contaminated-liquid section is provided with a device for backwashing the filtering partition, said device being installed with a provision for moving over the filtering partition, being pressed flexibly against it and comprising a hollow body which is open at the side of the filtering partition and communicates with the atmosphere. Arranged around the entire perimeter of the body at its open side is a circular recess with through holes in its bottom. In this recess is installed a mating plate capable of reciprocating therein so that there is a clearance between its face and the bottom of the recess, said clearance forming a chamber which communicates with the contaminated-liquid section through said holes. The mating plate is made of an elastic material. Such a solution ensures a high quality of cleaning of the filtering partitions with a resultant increase in the capacity and reliability of the filter.
REFERENCES:
patent: 2946447 (1960-07-01), Welz
patent: 3187898 (1965-06-01), Baker
patent: 3640395 (1972-02-01), Kinney
Kaminsky Igor Viktorovich
Litvinenko Alexandr Fedorovich
Maizlik David Lvovich
Melnikov Viktor Vasilievich
Miropolsky Mark Usherovich
Cross E. Rollins
Spear, Jr. Frank A.
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