Abstract: A closure for a container comprises a spout (22) containing a plastics coated foil (40) that is welded via one face to an inside flange (30) of the spout (22) and by means of a depending portion (42) on its opposite face to a side wall (10) of the container so that forces on the weld between foil portion (42) and the container when the closure is opened are in sheer rather than in tension. The closure can be used with a PET bottle or with other types of plastics or plastics containers.

Abstract: Larger gas tight containers for products such as carbonated or pressurised drinks require a resealable sealing assembly. The gas leakage through the assembly in its ex-factory sealing condition determines the shelf life of the product. The present assembly provides a foil (8) across a neck (10) of the bottle. The foil is supported in the ex-factory sealing condition by a plate (4) of a plug (36) which depends from an over cap (4). The over cap is screwed to an outer wall of a tubular spout (6) that surrounds the neck (10) of the bottle. In the resealed condition the plug can be screwed deeper into the neck so that a secondary seal is formed between the plate and the neck.