Tamper evident drinking fitment

摘要

A low-cost sportscap (2) has a nozzle (6) defining a drinking orifice. The nozzle is assembled from below into an outer shell (4) which is moulded as one piece and includes an overcap (16) and a base (14). A foil annulus (8) is used to seal a coupling part (50) of the nozzle to the outer shell (4) and also to provide a mechanism by means of which the closure can be assembled to a container neck (10). A primary ex-factory seal is created by a valve (42) inside the overcap engaging with the drinking orifice. This can be resealed by the user when the overcap (16) is attached to the base by hinge means (32). A hinge formation (32) may permanently connect the base (14) to the overcap (16). The overcap is connected to the base by a removable tamper band (18), the connection may be made by a frangible region along edges (34) and (36). A tab (38) may be provided to allow a user to grip the band (18). The foil annulus may be stamped out of a thin sheet of aluminium foil coated on each surface with a plastics coating, and may be welded by induction heat sealing to the nozzle, outer shell and container neck.