Container sealing cap

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 51/16 (2006.01)

Patent

CA 2248681

The invention concerns a cap for sealing containers which have high internal pressure, the cap substantially consisting of a cap base (3) and a wall (4) secured thereto. Disposed on the inner side of the cap wall is a guide track (6), taking the form of a bayonet-type thread, by means of which the sealing cap (1) can be brought into engagement with retaining cams (7) on the outer surface (8) of a container opening (2). The guide track (6) comprises a locking edge (9) which restricts the unscrewing movement such that the guide track (6) is in engagement with the entire retaining surface (10) of the retaining cams (7) throughout the gas-discharge process while the container is being opened.

L'invention concerne un bouchon servant à fermer des récipients à pression intérieure élevée. Ce capuchon comprend essentiellement une base (3) et une paroi (4) fixée dessus. Sur la face intérieure de la paroi du capuchon, il est prévu une glissière (6) sous forme de filet à baïonnette à l'aide de laquelle le capuchon de fermeture (1) peut être mis en contact avec des cames d'arrêt (7) sur la surface extérieure (8) de l'embouchure (2) d'un récipient. La glissière (6) comporte une arête de blocage (9) qui limite le mouvement de desserrage de manière que pendant tout le processus d'évacuation du gaz, la glissière (6) demeure en contact avec l'ensemble de la surface d'arrêt (10) des cames d'arrêt (7), lors de l'ouverture du récipient.

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