Abstract: A feeder apparatus includes a hopper having a longitudinal axis and a wall having an external surface and an internal surface defining a thickness therebetween. The wall defines an infeed end for receipt of particulate material and an outfeed end for conveyance of the particulate material from the hopper. The outfeed end defines or has an outfeed aperture therein. A base disposed such that at least a portion of the base is substantially coextensive with the outfeed aperture. The base has at least one base aperture therethrough to facilitate conveyance of the particulate material from the hopper. The base aperture may be concentrically or eccentrically disposed relative to the longitudinal axis of said hopper. At least one of the base and the hopper is capable of rotation relative to another of the base and hopper, such that the base aperture is in at least intermittent in particulate flow communication with the outfeed aperture.

Abstract: A feeder apparatus includes a hopper having a longitudinal axis and a wall having an external surface and an internal surface defining a thickness therebetween. The wall defines an infeed end for receipt of particulate material and an outfeed end for conveyance of the particulate material from the hopper. The outfeed end defines or has an outfeed aperture therein. A base disposed such that at least a portion of the base is substantially coextensive with the outfeed aperture. The base has at least one base aperture therethrough to facilitate conveyance of the particulate material from the hopper. The base aperture may be concentrically or eccentrically disposed relative to the longitudinal axis of said hopper. At least one of the base and the hopper is capable of rotation relative to another of the base and hopper, such that the base aperture is in at least intermittent in particulate flow communication with the outfeed aperture.