Sonic seed dehulling system

A seed dehuller including an upper upright cylindrical chamber, a central inverted frusto-conical chamber including major and minor diameter upper and lower ends and a lower depending cylindrical passage, the lower end of said upper chamber merging downwardly into the upper major diameter end of said inverted frusto-conical chamber, said minor diameter lower end merging downwardly into said passage, said passage being of smaller diameter than the diameter of said cylindrical chamber, an annular top wall closing the outer periphery of the upper end of the cylindrical chamber and including an inner periphery of smaller diameter than the diameter of said cylindrical chamber, a tubular votrex finder opening and extending downwardly into said cylindrical chamber from the inner periphery of said top wall, said cylindrical passage including a small diameter generally radially inwardly opening compressed air inlet intermediate the upper and lower ends of said passage and a lateral airflow outlet of greater cross-sectional area than said inlet opening generally radially outwardly of said cylindrical passage substantially diametrically opposite said inlet, said cylindrical chamber including an upper substantially tangential air inlet, and passage means communicating said lateral airflow outlet with said tangential inlet, said small diameter compressed air inlet including means adapted for connection with a variable pressure source of air under pressure.