DISPENSING DEVICE

摘要

The present invention relates to a method of dispensing a liquid suspension from a reservoir of a liquid suspension held in a delivery system, wherein the reservoir (21) of liquid suspension is of the type which is normally isolated from atmosphere, comprising the steps of: a increasing the volume of the reservoir (21) above an initial volume so as to reduce the pressure in the reservoir to below atmospheric b agitating the liquid suspension c reducing the volume of the reservoir (21) to the initial volume and d subsequently dispensing at least a portion of the liquid suspension from the reservoir (21).