Liquid purification or separation – Electrical insulating or electricity discharging
Patent
1981-02-25
1982-09-21
Wyse, Thomas G.
Liquid purification or separation
Electrical insulating or electricity discharging
210352, 210492, 204305, B01D 3506
Patent
active
043505902
ABSTRACT:
A liquid filter system capable of removing particles as small as one micron or less employing a novel electro-mechanical design in which layers of a fibrous filter media are alternated with electrically conductive porous sheets such as stainless steel screens. The conductive sheets are connected to a source of D.C. electrical power so that the sheets alternate in polarity to establish a uniform electromagnetic field throughout the porous filter media. The filter system is adapted for automatic backwashing cleaning and regeneration. A novel shuttle valve assembly is incorporated in the system for backwash of the filter media. In addition, means are provided for selective compression of the filter media during the filter cycle with decompression and expansion of the filter media being achieved during the backwash cycle.
REFERENCES:
patent: 3252885 (1966-05-01), Griswold
patent: 3528554 (1970-09-01), Ogden et al.
patent: 3592766 (1971-07-01), Kudlaty
patent: 3933643 (1976-01-01), Colvin et al.
patent: 4238326 (1980-12-01), Wolf
Crellin Terry M.
Criddle B. Deon
Wyse Thomas G.
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