AGITATION OF A SUSPENSION PRODUCT WITHIN A CONTAINER OF FLUID HAVING NO HEAD SPACE

摘要

A method and apparatus for re-suspending a suspension product (31) within a container (10) of fluid (30) with no head space. A helical body (40) is provided in the container (10) and the helical body (40) is rotated about its axis relative to the fluid within the container. The helical body (40) presents a surface area to the fluid as it rotates to cause sufficient turbulence to agitate and re-homogenise the contents of the container (10). The container (10) may have an outlet (11) and a piston (20) arranged to force homogenised fluid and suspension product out of the outlet as the piston (20) is forced into the container (10). The axial length of the helical body (40) may be reduced as the piston (20) progresses into the container (10) so that it does not impede progress of the piston (20).