Patent ID: 6322618
Filing Date: 2001-11-27
Classification: B01D,B08B

Abstract:
A filter assembly including backwash filter cleaning means, said assembly comprising:a filter housing for supporting within said housing at least one generally planar filter element having a base and top, within said housing;a pillar within said housing for extending from said filter base to said top;a nozzle support slidably engaged to said pillar and extending generally perpendicular to said pillar for reciprocal movement along said pillar at a relatively slow speed;first drive means for propelling said support along said pillar;a traveller moveably mounted to said support for relatively rapid reciprocal continuous shuttling along said support;second drive means for propelling said traveller along said support; andan air nozzle mounted to said traveller for delivering a stream of pressurized air to said filter element for the backwash cleaning thereof.