Patent ID: 7275644

Claim:
An apparatus for segregating particulate by density and/or size including: a. a fluidizing bed having a particulate receiving inlet for receiving particulate to be fluidized, an opening for receiving a first fluidizing stream, an exit for fluidized particulate and an exit for non-fluidized particulate; b. a conveyor for conveying the non-fluidized particulate in the fluidizing bed to the non-fluidized particulate exit; c. a collector box positioned to receive the non-fluidized particulate exiting the fluidizing bed, said collector box including means for directing a second fluidizing stream through the non-fluidized particulate as it is extracted from the collector box to separate fluidizable particulate there from; and d. a source of fluidizing streams operatively connected to the fluidizing bed and collector box.