Gravity screen filter with dynamic backwash

Details Gravity screen filter with dynamic backwash Gravity screen filter with dynamic backwash

1993-10-25

1995-06-20

Lithgow, Thomas M.

Liquid purification or separation

Filter

Medium, cleaner or agitator moved by fluid

210355, 210411, 210413, 210456, 21033301, 209308, B01D 2968, B01D 2992

Patent

active

054258766

ABSTRACT:
A self-cleaning gravity screen for removing particulate material from a liquid stream. The screen slopes, and beneath it a rotary wand sweeps against its lower side to keep the screen perforations open and assist movement of retained solids along the screen. The wand is driven by a rotary water wheel.

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patent: 5228993 (1993-07-01), Drori
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