Lid for a container and packing consisting of a container with a lid.

摘要

In a lid (1) for a container (5) comprising a rim portion (2) for connecting the lid (1) to the container (5) and a middle portion (3) lying inside the said rim portion (2)and being movable in the axial direction relative to the rim portion (2) the middle portion (3) is joined to the rim portion (2) via a bellows-shaped intermediate portion (4) extending substantially in the axial direction. This makes it possible that, when a packing consisting of a container (5) closed by such a lid and filled with a product is subjected to a heat treatment, such as sterilization, the expansion of the gases contained in the packing is entirely taken by the lid (1). The lid may additionally be provided with a closable opening (9) which opening is preferably closed by a drop (10) of a meltable plastics composition.