Water treatment device

Details Water treatment device Water treatment device

2007-09-11

2007-09-11

Lithgow, Thomas M. (Department: 1724)

Liquid purification or separation

Filter

With residue removing means or agitation of liquid

C210S409000, C210S332000, C210S321630, C210S321690

Reexamination Certificate

active

11171073

ABSTRACT:
A water treatment device includes a container, a longitudinal water collecting tube, a filter unit, and a plurality of longitudinal water jet tubes. The longitudinal water collecting tube is mounted within the container, and has a tube wall formed with a plurality of water inlet slots. The filter unit includes a stack of alternately disposed filter membranes and rotatable blade scrapers inside the container. Each of the filter membranes and rotatable blade scrapers has a central hole for extension of the longitudinal water collecting tube therethrough. The longitudinal water jet tubes are provided around the filter unit, and are substantially parallel to the longitudinal water collecting tube. Each of the longitudinal water jet tubes has a longitudinal slit facing toward the filter unit.

REFERENCES:
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patent: 6461507 (2002-10-01), Ishigaki et al.
patent: 6613226 (2003-09-01), Kuo
patent: 2005/0040096 (2005-02-01), Kuo
patent: 2005/0161390 (2005-07-01), Kuo

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