Filter cell sheet installations

Details Filter cell sheet installations Filter cell sheet installations

1990-11-26

1992-02-18

Dawson, Robert A.

Liquid purification or separation

With repair or assembling means

210264, 210266, 210275, B01D 2422

Patent

active

050891308

ABSTRACT:
Automatic backwash filter systems including a filter tank divided into a multiplicity of seriate cells of substantially the same width by a plurality of vertical rectangular cell sheets are improved by provision of new spacer assemblies to mitigate bowing of the cell sheets during backwashing or other operations applied to the cells. Such spacer assemblies include horizontally aligned bores that extend through each cell sheet adjacent their top, one or more stringers that extend through the bores, and a plurality of tubes of approximately the same length substantially equal to the width of the cells. One of such tubes is positioned in each filter cell surrounding the stringer present in such cell and between the surfaces of the respective cell sheets. Where a plurality of stringers are used in the spacer assemblies arrangements are disclosed for making final connections to complete the assemblies.

REFERENCES:
patent: 2302450 (1942-11-01), Laughlin

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