Liquid purification or separation – Filter – Supported – shaped or superimposed formed mediums
Reexamination Certificate
2007-06-13
2011-12-06
Fortuna, Ana (Department: 1777)
Liquid purification or separation
Filter
Supported, shaped or superimposed formed mediums
C210S493200, C210S321860, C210S455000, C210S443000, C210S456000, C156S322000
Reexamination Certificate
active
08069991
ABSTRACT:
In one embodiment according to the invention, there is provided a filter device for liquid filtration, the filter device being in fluid communication with a plurality of liquid pathways, at least one pathway of the plurality of liquid pathways having a smallest equivalent fluid flow diameter of the plurality of liquid pathways. The device comprises a filter membrane (108) and a filter core (109) comprising at least one cross hole (110) in fluid communication with the filter membrane, each cross hole having an equivalent fluid flow, diameter. The sum of the equivalent fluid flow diameters of the at least one cross holes does not exceed the smallest equivalent fluid flow diameter of the plurality of liquid pathways.
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Norris Douglas A. D.
Towle Timothy W.
Entegris, Inc.
Fortuna Ana
Hamilton Brook Smith & Reynolds P.C.
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