Abstract: A system for dispensing a substance comprises an axially compressible container (2) for holding a stock of substance. The container has a tubular, dimensionally stable wall which, at one end has a dispensing part (6) with a dispensing passage (7) and at the other end has a closed end (10) which is integral with the wall. The system comprises a device (1) for the metered dispensing of the substance. The device comprises a support (3) with a retaining member (9) for the dispensing part of the container. The device comprises a pressured-exerting member (11) which can be displaced in the axial direction and has a pressure-exerting side (12) which is designed to act on the closed end of the container. The device has drive means for the pressure-exerting member. Substance is dispensed by axial compression of the container under the influence of axial displacement of the pressure-exerting member in the pressure direction.

Abstract: A method is provided for dosing powdered material from a supply container having a vertically suspending discharge tube of an elastically deformable material, by squeezing said discharge tube at locations, which periodically move along a part of the discharge tube length. In this method, the squeezing of the discharge tube is effected in a similar way as the flexible tube of a peristaltic pump of the type, with which the tube engages a support wall on one side and with which a peristaltic mechanism is provided on the opposite side for squeezing the tube according to a travelling wave, the length of which does not exceed one single wave length.