Underdrain filter plate installations in automatic backwash filt

Details Underdrain filter plate installations in automatic backwash filt Underdrain filter plate installations in automatic backwash filt

1996-02-26

1997-04-08

Cintins, Ivars

Liquid purification or separation

Particulate material type separator, e.g., ion exchange or...

Selective units or compartments

210275, B01D 2438

Patent

active

056184212

ABSTRACT:
Automatic backwash filter systems including a filter tank divided by vertical cell sheets into a multiplicity seriate cells are improved by provision, as retention for underdrain filter plates within the seriate cells, of unique contoured cell sheets having profiled faces each with a lower level, integral, protrusion segment that forms a support ledge for a cell filter plate and a higher level, integral, protrusion segment that provides a filter plate holddown feature in combination with filler members and horizontal retention bars.

REFERENCES:
patent: 2302450 (1942-11-01), Laughlin
patent: 3239061 (1966-03-01), Horning et al.
patent: 4133766 (1979-01-01), Adie
patent: 4617131 (1986-10-01), Walker
patent: 4764288 (1988-08-01), Walker et al.
patent: 4882053 (1989-11-01), Ferri
patent: 5089130 (1992-02-01), Nichols

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