Self-cleaning liquid filter and method for filtering a liquid

Details Self-cleaning liquid filter and method for filtering a liquid Self-cleaning liquid filter and method for filtering a liquid

1998-12-02

1999-12-14

Popovics, Robert J.

Liquid purification or separation

Filter

Movable medium

210402, 210407, 210411, 96233, B01D 3306

Patent

active

060005572

ABSTRACT:
A self-cleaning liquid filter and a method for filtering a liquid are disclosed. In the self-cleaning liquid filter, a rotating hollow drum covered with a filter element is mounted in a filter housing and turned by a waste liquid that contains debris or dirt. Filtered or cleaned liquid enters into the hollow drum and is pumped away at one end of the drum while debris or dirt in the waste liquid are trapped on the filter. A spray nozzle is mounted inside the rotating drum and clean water is sprayed out to wash away the debris and dirt carried by the filter element into a debris collector equipped with a second filter. The debris and dirt are trapped by the second filter while a filtered, or clean liquid is drained back into the filter housing. The novel device is self powered by the waste liquid flow and thus no external power is necessary for operating the device.

REFERENCES:
patent: 2351712 (1944-06-01), Sattele et al.

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