Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Separating means
Reexamination Certificate
2006-10-31
2006-10-31
Rodriguez, Joseph (Department: 3653)
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Separating means
C209S644000, C209S638000, C209S637000, C209S133000, C209S715000
Reexamination Certificate
active
07128216
ABSTRACT:
The invention relates to a closed air circulation system for an apparatus used for sorting wood chips, containing chips in a variety of sizes and/or fines particles, in a wood chips processing chamber, in separate fractions by means of a gas flow, which is delivered from one or more nozzle chambers by way of a nozzle slit into the wood chips processing chamber and which applies an impulse action to the processing-bound wood chips sliding along an inclined support surface. Air is circulated from the wood chips processing chamber by way of a dedusting cyclone into said one or more nozzle chambers. The wood chips processing chamber is maintained at a negative pressure by regulating the volume of air removed from the chamber. A conduit extending between the wood chips processing chamber and the one or more nozzle chambers is open to the ambient atmosphere.
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International Search Report for International Patent No. PCT/FI01/00813, completed Dec. 20, 2001.
Alix Yale & Ristas, LLP
Andritz Oy
Miller Jonathan R.
Rodriguez Joseph
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