Abstract: This stopper device (3) for a container (B) comprises a sealing disk (2) suitable for being sealed, adhesively bonded, or blocked against the end edge (12) of the neck (1) of the container (B), while projecting radially outwards from the neck. The device also comprises a stopper (4) suitable for being mounted on the neck (1) and provided with an internal portion in relief enabling a thrust force to be exerted on the sealing disk (2) urging the disk (2) away from the neck (1). The internal portion in relief is formed by a tongue (412) formed integrally with the stopper (4) and folded towards the end wall (413) of the stopper, in a configuration that is generally frustoconical and that converges (?) towards said end wall (413).

Abstract: An opening arrangement for packaging containers manufactured from a laminate material includes an opening strip that is inlaid in a transverse sealing fin of the packaging container. The opening strip extends through a longitudinal sealing seam of the packaging container so that a portion of the opening strip is located exteriorly of the packaging container. A part of the opening strip is coated on at least one side with a non thermosealable layer.

Abstract: An opening arrangement of the reclosable type on a packing container (2) includes a double strip or a doubled strip (5,5',5") applied to the outside of the container. The double strip (5) includes two overlapping strip portions (5a and 5b) covering in an openable manner an emptying opening (4) incorporated beforehand in the container. A reclosing of the container after opening is made possible in that the bottom strip portion (5b) comprises one or more protruding parts (14) which to this end can engage detachably in one or more corresponding seats (15) formed in the upper strip portion (5a).