Patent ID: 6764653
Filing Date: 2004-07-20
Classification: B01L,G01N

Abstract:
A method of forming a multiple well filtration device comprising the steps of:forming an underdrain portion, said underdrain portion having a plurality of individual drain compartments, each compartment having an open top and a closed bottom, said compartments having one or more drain openings formed in the bottom portion and a drain compartment wall located adjacent an outer periphery of the closed bottom; placing a filter component in each of the drain compartments contained in the underdrain portion, bonding the filter component in each of said drain compartments at the periphery of the filter component to the drain compartment in a manner to form in integral seal between the periphery of the filter component and a drain compartment of the underdrain portion wherein the filter component is formed of an ultrafiltration membrane having a porous bottom support layer and an ultraporous upper layer, the bottom layer and upper layer being integrally attached to each other and wherein the periphery of the filter component is bonded to the drain compartment of the underdrain portion so as to form an integral seal between the periphery of the filter component and the drain compartment.