Container cap and container mouth

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 41/16 (2006.01) B65D 41/02 (2006.01) B65D 41/18 (2006.01) B67B 3/02 (2006.01) B67B 3/22 (2006.01)

Patent

CA 2250886

The invention concerns a snap-on cap or a screw cap which has a multiple thread and comprises auxiliary retention means (10) which can hold the cap in the axial direction on both sides of a container mouth (8) which is to be closed, before the cap retention elements (6) engage with the retention elements (7) on the container mouth (8) and close the latter sealingly in a leaktight position. The force (F1) required to press on the auxiliary retention means (10) is less than the closure force (F2). The auxiliary retention means (10) prevent the cap from popping off or tilting in a filling plant. Instead of the cap (1), the container mouth (8) can also be provided with auxiliary retention means (30), a conventional cap then being used.

L'invention concerne un bouchon à déclic ou un bouchon vissable comportant un filet à pas multiple, qui présente des éléments de retenue auxiliaires (10) lui permettant d'être maintenu dans le sens axial de part et d'autre sur l'embouchure (8) d'un récipient à fermer, avant que les éléments de retenue (6) du bouchon n'entrent en contact avec les éléments de retenue (7) de l'embouchure (8) du récipient et n'obturent de manière étanche l'embouchure (8) du récipient dans une position étanche. La force d'engagement par pression (F1) que requiert la mise en place des éléments de retenue auxiliaires (10) est inférieure à la force de fermeture (F2). Les éléments de retenue auxiliaires (10) évitent au bouchon de sauter ou de se coincer dans une installation de remplissage. L'embouchure (8) du récipient peut également être munie d'éléments de retenue auxiliaires (30), à la place du bouchon. Dans ce cas, il faut utiliser un bouchon traditionnel.

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