Patent ID: 6676834
Filing Date: 2004-01-13
Classification: B01D

Abstract:
At A water filter system for use with a water flow having particulate contaminants therein, said water filter system comprising:an inlet valve for controlling the water flow having particulate contaminants therein forming a contaminated water flow and wherein the contaminated water flow flows through a first output port of said inlet valve; a stationary porous member positioned in the contaminated water flow that passes through said first output port, said contaminated water flow entering said stationary porous member through a first porous member surface and exiting through a second porous member surface towards a second output port, said water flow depositing the particulate contaminants on said first porous member surface to form a clean water flow that flows towards said second output port; said stationary porous member comprising: an inner rigid enclosure having a plurality of perforations; a mesh layer wrapped around said inner rigid enclosure; and a wire cloth layer, said wire cloth layer comprising said first porous member surface and said second porous member surface, said wire cloth layer being wrapped around said mesh layer and wherein said second porous member surface is in contact with said mesh layer; a third output port coupled to a drain through a drain valve; said inlet valve being closed while said drain valve is opened during a cleaning process for generating a reverse flow of said clean water flow that flows from said second output port towards said third output port, said reverse flow of said clean water flow flowing through said stationary porous member from said second porous member surface through said first porous member surface for dislodging the particulate contaminants from said first porous member surface to form a contaminated reverse flow of water that flows into said drain; said drain valve being closed and said inlet valve being opened after said cleaning process is completed; and wherein said stationary porous member further comprises an ultrasonic generator that is positioned inside said inner rigid enclosure, said ultrasonic generator being activated to facilitate cleaning during a portion of said cleaning process.