Closing device with a piercing element

Details Closing device with a piercing element Closing device with a piercing element

B - Operations, Transporting

65

D

B65D 51/22 (2006.01) B65D 5/74 (2006.01) B65D 51/24 (2006.01)

Patent

CA 2451751

The invention relates to a closing device (1) which is arranged above a pierceable point of a closed container (B). Said closing device comprises a lower part (2) with a cylindrical discharge nozzle (20), a screw cover (4) and a piercing element (3). Means (44) are used to displace the piercing element (3), which is open on both sides, downwards in an axial direction in a screw- like manner in the screw cover (4) in the lower part (2) of said closing device. Said piercing element (3) has two cutting elements (33) offset at an angle (a) which produce a continuous, interconnected cutting line (2a), and a displacing element (34, 35, 38) which shifts a partially cut-out tab of the container from the region of the discharge nozzle (20).

L'invention concerne un dispositif de fermeture (1) placé au-dessus d'un emplacement perforable d'un contenant fermé (B) et comprenant une partie inférieure (2) à bec verseur cylindrique (20), un bouchon fileté (4), ainsi qu'un perforateur (3). Le perforateur (3) ouvert des deux côtés dans le sens axial peut être déplacé vers le bas hélicoïdalement dans la partie inférieure (2) à l'aide de moyens (44) situés dans le bouchon fileté (4). Le perforateur (3) comprend deux éléments tranchants (33) décalés d'un angle (a) l'un par rapport à l'autre et produisant une ligne de découpe continue (2a) en passant l'un après l'autre, ainsi qu'un élément de déplacement (34, 35, 38) qui repousse une languette partiellement découpée du contenant hors de la zone du bec verseur (20).

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