Patent ID: 6450680
Filing Date: 2002-09-17
Classification: B01F

Abstract:
Powder mixing apparatus, comprising:a cylindrical body of circular section and of substantially horizontal longitudinal axis, which body is leakproof and has two substantially parallel disk-shaped walls and one uninterrupted annular wall intersecting both said disk shaped walls at an inside diameter, said body being provided with at least one filling orifice situated at a top of said body disposed above the longitudinal axis and with at least one emptying orifice opening out into the bottom of said body disposed below the longitudinal axis; a disk having an outside diameter substantially equal to the inside diameter of the annular wall and being placed coaxially inside said body, the edge of said disk being substantially in contact with the annular wall so as to subdivide said body into two cylindrical compartments of substantially equal volume, said disk being provided on each of its faces with at least one blade that is substantially in contact at least with the disk-shaped wall adjacent to said blade, said blade serving to guide said powder during rotation of said disk to a radially inner end segment of said blade adjacent to a corresponding transfer orifice passing through said disk so as to enable at least a portion of the powder to pass from one compartment to the other on each revolution of the disk, said blades being angularly offset; a horizontal drive shaft secured to the center of said disk to rotate said disk; and motor means for rotating said drive shaft.