Vented container end apparatus and method

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 17/34 (2006.01) B21D 51/44 (2006.01)

Patent

CA 2365769

A container end is provided so that upon opening, a generally triangular vent region (362) is formed with an apex pointing rearwardly toward the head space to vent the container during pouring. The container end achieves a fast and smooth pour with a relatively small increase. in the opening area (322) without increased bursting, buckling or opening failures associated with relatively larger openings. The opening area is defined by a score line (318) having first (342) and second (346) rupture end points with a gate axis (348) therebetween along which the opening area (322) pivots after rupture of the score line (318).

Une extrémité de conteneur est prévue de sorte que soit formée lors de l'ouverture, une zone d'aération généralement triangulaire (362) dont le sommet est tourné vers l'arrière en direction de l'espace supérieur et que le récipient soit aéré pendant le versement. L'extrémité de conteneur permet un versement rapide et régulier avec une augmentation relativement faible dans la zone d'ouverture (322) sans éclatement, flambage ou défaillances d'ouverture accrus, associés à des ouvertures relativement plus importantes. La zone d'ouverture est délimitée par une ligne de rupture (318) possédant un premier (342) et un deuxième (346) point terminal de rupture, un axe de liaison (348) entre les deux, le long duquel la zone d'ouverture (322) pivote après la rupture de la ligne de rupture (318).

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