Filtering device for liquid filtration

Details Filtering device for liquid filtration Filtering device for liquid filtration

2007-10-17

2011-11-01

Nguyen, Nam (Department: 1778)

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Filter cleaning

C210S090000, C210S106000, C210S108000, C210S109000, C210S327000, C210S331000, C210S334000, C210S345000, C210S346000, C210S347000, C210S413000, C210S414000, C210S416100

Reexamination Certificate

active

08048296

ABSTRACT:
An apparatus for filtering liquid that includes a filter having an external surface; a rotatable shaft extending through the filter; and a movable member coupled to the rotatable shaft. The movable member is configured to impart a suction force at various locations across the external surface of the filter. The movable member has a trailing portion that extends further than the leading portion in the direction toward the filter.

REFERENCES:
patent: 3857786 (1974-12-01), Wolf, Jr.
patent: 5275728 (1994-01-01), Koller
patent: 6103132 (2000-08-01), Seyfried et al.
patent: 2005/0000870 (2005-01-01), Ricketts
patent: 2005/0139557 (2005-06-01), Ricketts

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