Flow splitting weir

Details Flow splitting weir Flow splitting weir

2006-03-21

2006-03-21

Popovics, Robert James (Department: 1724)

Liquid purification or separation

Processes

Separating

C210S286000, C210S456000, C210S264000, C210S790000

Reexamination Certificate

active

07014783

ABSTRACT:
A method of minimizing head loss in a filter system including a plurality of drop pipes, a plurality of filter cells having a maximum influent level, and a distribution box having a maximum influent level, a base, and a plurality of distribution cells. The method includes positioning a first end of each of the plurality of drop pipes within one of the distribution cells such that the first end of the pipe is disposed within the distribution cell and defines a weir having a weir height. The method further includes positioning a second end of each of the pipes in fluid communication with one of the plurality of filter cells. The method also includes supporting the distribution box such that the maximum influent level of the filter cells is above the base of the distribution box and below the maximum influent level of the distribution box.

REFERENCES:
patent: 3134735 (1964-05-01), Greenleaf
patent: 3282432 (1966-11-01), Greenleaf
patent: 4537687 (1985-08-01), Piper
patent: 4793934 (1988-12-01), Thompson et al.
patent: 6849180 (2005-02-01), St. Germain
patent: 2003/0230542 (2003-12-01), St. Germain
patent: 2005/0067357 (2005-03-01), Germain
United Stated 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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