Flow splitting weir

Details Flow splitting weir Flow splitting weir

2005-02-01

2005-02-01

Popovics, Robert James (Department: 1724)

Liquid purification or separation

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

Selective units or compartments

C210S286000, C210S456000

Reexamination Certificate

active

06849180

ABSTRACT:
The invention recites a filter including a plurality of filter cells, each filter cell including a bottom surface and at least one side surface and defining a maximum influent level. The filter also includes a distribution box including a base and at least one wall, the base and wall at least partially defining a distribution region therein. The distribution box is supported such that the base is at or below the filter cell maximum influent level. The filter further comprises a plurality of drop pipes, each pipe having a first end and a second end, the first end of each pipe is in fluid communication with the distribution region, and extends above the base of the distribution box. The second end of the pipe is in fluid communication with one of the plurality of filter beds.

REFERENCES:
patent: 3134735 (1964-05-01), Greenleaf, Jr.
patent: 3282432 (1966-11-01), Greenleaf, Jr.
patent: 4537687 (1985-08-01), Piper
patent: 4793934 (1988-12-01), Thompson et al.
patent: 5137645 (1992-08-01), Miller
patent: 20030230542 (2003-12-01), Germain
United States Filter Corporation, Bulletin No. 6902-0398-50 entitled “General Filter CenTROL® Conventional Gravity Filters in a Cluster Arrangement”, © 1998, pp. 1-9 (includes insert).

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