Patent ID: 7591379

Claim:
A device for sieving and/or mixing, comprising: a base; a container mounted on the base for rotation about an axis which is substantially horizontal, the container having a peripheral wall extending angularly about and parallel to the axis, and an opening extending longitudinally relative to the axis to provide for movement of material into and out of the container; a drive assembly for driving the container angularly about the axis so that material which is introduced into the container may be processed as required by rotation thereof; and a catch tray located radially outwardly of and extending externally from the peripheral wall in a lower region thereof and opposite to the opening, which prevents material from passing through a back portion of the container, wherein the peripheral wall delivers the material through the opening when the container is moved angularly about the axis in a predetermined direction, wherein the peripheral wall retains and processes the material within the container when the container is rotated in a direction opposite to the predetermined direction, and wherein retention of the material within the container is facilitated by an internal baffle which is connected to, and extends radially inwardly from the peripheral wall to the axis in a region near the opening.