Abstract: An apparatus for transferring powder from a bulk supply to a container comprising a first conduit 4 extending from a bulk supply 2 to the container 25, a second conduit 8 enabling the introduction of a purge gas into the container, a third conduit 28 enabling displaced gas to discharge from the container, a source of suction 17 communicating with the third conduit, a filter 13 through which passes the displaced gas, and an inflatable annulus 23 made of flexible material disposed round the conduits and adapted to enter into enter into engagement with the wall of the container.

Abstract: An apparatus for transferring powder from a bulk supply to a container comprising a first conduit extending from the bulk supply to the container, an inflatable annulus made preferably from natural rubber, secured towards the end of the conduit and adapted to enter into air-tight engagement with the wall of a container which can be a bag or sack having flexible walls or a drum or carton having rigid walls. The appartus is also provided with a second conduit having an opening in the container to allow air displaced by powder entering to escape. The second conduit communicates with an exhaust fan to assist the removal of displaced air. A third conduit is also provided having an opening within the container. This opening is placed in close proximity to the outlet situated within the container of the second conduit.