Patent ID: 7001506
Filing Date: 2006-02-21
Classification: A01K,B01D

Abstract:
1. A self-cleaning filter assembly for use with a source of pressurized cleaning fluid, comprising: a filter; a housing with said filter mounted therein, said housing defining an unfiltered inlet for receiving unfiltered fluid to be filtered to produce filtered fluid; a reciprocally movable cleaning head mounted adjacent said filter and being connected with said source of pressurized cleaning fluid, said reciprocally moveable cleaning head being operable for spraying said pressurized cleaning fluid over a fluid input portion of said filter during a filter cleaning cycle which is activated upon the receipt of said pressurized cleaning fluid at said reciprocally moveable cleaning head and moveably responsive to a flow of said pressurized cleaning fluid to a cleaning water input of said housing, said pressurized cleaning fluid producing waste fluid during said filter cleaning cycle; one or more outlets in said housing; and further comprising a piston and cylinder connected to a moveable fluid director member, said piston and said cylinder being in fluid communication with said pressurized cleaning fluid and responsive to said pressurized cleaning fluid for relative movement between said piston and said cylinder to thereby move said moveable fluid member to direct waste fluid towards a waste fluid outlet during said cleaning cycle.