Classifying – separating – and assorting solids – Fluid suspension – Liquid
Reexamination Certificate
2005-06-14
2005-06-14
Walsh, Donald P (Department: 3653)
Classifying, separating, and assorting solids
Fluid suspension
Liquid
C209S142000, C209S143000, C210S223000, C210S644000, C210S748080, C095S028000, C095S058000, C095S071000, C095S078000, C096S003000, C096S052000, C096S064000
Reexamination Certificate
active
06905029
ABSTRACT:
A method, system, apparatus, and article of manufacture provide a cross-flow migration classifier capable of separating particles. The classifier provides a channel through which a sample, having one or more particles, passes in a first direction, wherein the channel comprises two or more walls that are permeable to a flow of fluid. A cross-flow enters the channel through one of the permeable walls and exits through another of the permeable walls. An imposed field is applied in a second direction that is counter to the cross-flow and having an orthogonal component to the first direction. The imposed field causes one or more of the particles to migrate at a first velocity opposite and/or equal to a second velocity of the cross-flow. The particles that migrate opposite to the cross-flow are continuously discharged from the cross-flow migration classifier.
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California Institute of Technology
Gates & Cooper LLP
Rodriguez Joseph
Walsh Donald P
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