Tamper-evident drum closure overcap

Details Tamper-evident drum closure overcap Tamper-evident drum closure overcap

B - Operations, Transporting

65

D

B65D 51/18 (2006.01) B65D 41/62 (2006.01) B65D 43/10 (2006.01)

Patent

CA 2392222

A snap-on overcap (20) for providing, a tamper-evident capability to a closure assembly of a container (42) includes a cap (21), removable skirt (22), and a plurality of frangible elements (23) which connect the removable skirt (22) to the cap (21). The closure assembly includes an internally-threaded fitting (43) and an externally-threaded closing plug (39) which is installed into the fitting (43). The cap portion (21) includes a depending sidewall (25, 26) which terminates in a snap-on lip portion (27). The removable skirt (22) includes a wall portion (29, 30) which is positioned in close proximity to an upper surface of the container when the cap is snapped onto the closure assembly. The snap-on engagement of the cap (21) to the closure assembly (39. 43) involves engagement by the lip portion with a cooperating edge of the closure assembly. To gain access to an edge of the cap to pry the cap off of the closure assembly, the skirt (22) must be removed.

La présente invention concerne un surbouchage encliquetable (20) permettant l'inviolabilité d'un assemblage fermeture d'un contenant (42), constitué d'une cape (21), d'une jupe amovible (22), et de plusieurs éléments cassants (23) reliant la jupe (22) à la cape (21). L'assemblage fermeture comprend une fixation (43) à filetage interne et un bouchon de fermeture (39) à filetage extérieur, vissé dans la fixation (43). La cape (21) comporte une paroi dépendante (25, 26) qui se termine par une lèvre d'encliquetage (27). La jupe détachable (22) comprend une paroi (29, 30) positionnée à proximité d'une surface supérieure du contenant, lorsque la cape est encliquetée sur l'assemblage fermeture. L'engagement encliquetable de la cape (21) avec l'assemblage fermeture (39, 43) met en jeu l'engagement par la lèvre d'une bordure coopérante de l'assemblage fermeture. La jupe (22) doit être éliminée lorsque l'on veut avoir accès à une bordure de la cape afin de dégager la cape de l'assemblage fermeture.

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