B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 41/17 (2006.01) B65D 1/02 (2006.01) B65D 41/47 (2006.01) B65D 51/14 (2006.01)
Patent
CA 2239178
A press-on, twist-off closure (11) for a container having a cylindrical neck which includes a plurality of vertically spaced helical threads formed in the outer surface thereof in generally parallel relationship to each other. A flexible, cylindrical closure skirt (13) includes a plurality of radially inwardly projecting spaced, deformable lugs (32) that are circumferentially disposed around the inner cylindrical skirt surface and axially spaced therefrom for engagement with the threads on the cylindrical neck of the container. The lugs are sized so that an interference fit is provided between at least some of the lugs and at least some of the threads. Upon removal from the container, a rotational movement causes at least some of the lugs to engage upwardly inclined surfaces on the threads, thereby providing an upward camming action to the closure.
Une fermeture (11) à pression et dévissage pour un récipient présentant un col cylindrique comporte une pluralité de filets hélicoïdaux espacés verticalement parallèles, sur sa surface extérieure. Une jupe (13) de fermeture flexible cylindrique comprend une pluralité d'ergots (32) déformables saillants et espacés radialement intérieurement, lesquels sont disposés de manière circomférentielle autour de la surface de la jupe cylindrique intérieure et espacés axialement de celle-ci de manière à s'engager sur le filets du col cylindrique du récipient. Les ergots sont dimensionnés de manière à permettre un ajustement étroit entre au moins certains des ergots et au moins certains des filets. Lors d'un retrait à partir du récipient un mouvement tournant fait monter certains des ergots au contact de surfaces inclinées situées sur les filets, produisant ainsi un effet de came montant sur la fermeture.
Mann Benjamin
Petersen Mark
Taber James
Osler Hoskin & Harcourt Llp
White Cap Inc.
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