Classifying – separating – and assorting solids – Electrostatic
Reexamination Certificate
2006-05-09
2006-05-09
Walsh, Donald P. (Department: 3653)
Classifying, separating, and assorting solids
Electrostatic
C209S127200, C209S128000, C209S129000
Reexamination Certificate
active
07041925
ABSTRACT:
Apparatus for the electrostatic separation of a mixture of particles that exhibit difference in electrical conductivity, comprising: a conductive surface to which conducting particles lose their charge; feeding means for feeding the mixture of particles onto the conductive surface; an ionising electrode for ionising individual particles in the mixture of particles; and a first static electrode having the same polarity as the ionising electrode and which serves to generate a static electric field, the first static electrode being located sufficiently close to the ionising electrode that the static electric field acts continuously on the particles as they are ionised; wherein conducting particles are separated from non-conducting particles on the basis of their different retained charge after a period of contact with the conductive surface.
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Miller Jonathan R.
Moore & Van Allen PLLC
Ore Kinetics Investments Pty., Ltd.
Skord Jennifer L.
Walsh Donald P.
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