Plastics containers

A nestable container at least partially of resilient plastics material comprising:

• a bottom wall;
• a side wall having an outside and an inside surface and diverging generally upwardly from the bottom wall;
• stop and seal surfaces to limit the extent to which identical containers can be nested one inside another and form a sealed space between the bottom walls of nested containers;
• holding means for releasably holding identical containers together when nested, the holding means comprising axially extending ribs disposed on one surface of the side wall and a substantially cylindrical surface on the other surface of the side wall, the axially extending ribs being so arranged to engage the substantially cylindrical part of the side wall of an identical container when the containers are nested to hold the containers together by frictional engagement,
• the axially extending ribs having crests which are substantially the same distance from the axis of the container throughout a significant part of their axial length, and
• the radius of the cylindrical surface being a different dimension than the distance of the crests from the axis so as to form a slight interference fit with a mating cylindrical surface of a nested container and the wall being deformable so that the cylindrical portion can engage the portion with the ribs.