Abstract: An auger feeder suitable for use in subdividing and feeding of powdery particles such as precious medicines in a trace amount, because the component parts of the auger feeder can be easily disassembled for sterilization treatment before use. In addition, it can be prevented owing to the electric detection system in the auger feeder of the present invention that foreign particles resulting from the contact or the friction between the components are mixed with the powdery particles.

Abstract: A granular material processing apparatus provided with an improved sealing arrangement for the granular material, which is so arranged that, instead of employing an ordinary packing member conventionally used for a known sealing arrangement, a packing portion is formed by the granular material itself present in the processing apparatus for tightly closing the gaps or clearances between stationary container members and movable processing members, thereby to completely eliminate troubles, spilling of the granular material and mixing of foreign matters into the granular material arising from abrasion or deterioration of a packing member, if such packing member should be employed.