Abstract: There is described a closure for use with a container neck. The closure comprises a cap and an insert. The insert is adapted to be permanently adhered to the container neck and has a sealing surface. The cap comprises a complimentary sealing surface for sealable engagement with the sealing surface provided on the insert and engagement means for releasable engagement with complimentary engagement means provided on the container neck.

Abstract: There is described a closure comprising a wall defining an aperture and a membrane frangibly connected to the wall and closing the aperture. The frangible connection between the membrane and the wall lies in a plane which is inclined to a plane perpendicular to an axis of the aperture.

Abstract: There is described a neck structure in combination with a closure. The neck structure defines a neck opening with a cylindrical sealing surface surrounding the neck opening and an external neck surface. The closure comprises a cap formed of resilient material having a top and a downwardly extending skirt portion depending from the top. An annular plug depends from an underside of the top and one or more ribs are formed on an internal surface of the downwardly extending skirt portion. The annular plug and the one or more ribs are arranged concentrically and are dimensioned such that, upon application of the cap to the neck structure, the annular plug projects into the neck opening and engages the cylindrical sealing surface. At the same time the one or more ribs engage the external neck surface.

Abstract: There is described a closure system comprising a cap (14), a neck (12) and tamper evident means (16, 78) integrally moulded in a unitary structure. The structure allows the application of the tamper evident means prevents the cap from being removed from the neck while the tamper evident means remains intact.

Abstract: A method and applicator for applying a threaded cap to a threaded neck of a container. The method includes the steps of placing the cap on the neck of the container, rotating the cap relative to the neck in an opening direction while supporting the cap with respect to the neck, and applying the cap to the neck so as to achieve substantial thread engagement. A reverse drive mechanism may be used with the applicator.

Abstract: There is described a closure comprising a wall defining an aperture and a membrane frangibly connected to the wall and closing the aperture. The frangible connection between the membrane and the wall lies in a plane which is inclined to a plane perpendicular to an axis of the aperture.