Patent ID: 6413424
Filing Date: 2002-07-02
Classification: B01D

Abstract:
A sanitary filter comprising:a central fluid permeable core having extending therefrom a plurality of eaves, each leaf comprising a pair of membrane filter sheets having adhered therebetween a tricot sheet, each said membrane filter sheet, when in contact with a fluid containing a first concentration of ionic or particulate materials, separating said fluid into a first portion containing a lesser concentration of said materials and a second portion containing a greater concentration of said materials, for discharging said first portion to said tricot sheet and for discharging said second portion other than to said tricot sheet; said tricot sheet for channeling flow of said first portion to and into said fluid permeable core, with said tricot sheet having a peripheral edge; an adhesive for adhering each pair of said membrane filter sheets to said tricot fluid channeling sheet therebetween, and being disposed through said tricot fluid channeling sheet to form a fluid-tight barrier along said peripheral edge of said tricot fluid channeling sheet except for a portion of said edge adjacent said core, said barrier being free of areas wherein quiescent pools of said fluid containing contaminants may form; a cage surrounding at least a portion of said core and leaves; and a casing surrounding said cage and leaves and restraining said core and leaves.