Description
Class B03B : SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
Subclass 4/04: Separating by pneumatic tables or by pneumatic jigs (sink-float separation using dry heavy media B03B 5/46) using rotary tables or tables formed by travelling belts (separating solids from solids using gas currents and revolving drums B07B 4/06)