A push/pull closure

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 47/06 (2006.01) B65D 47/10 (2006.01) B65D 47/24 (2006.01) B65D 47/26 (2006.01) B65D 47/28 (2006.01) B65D 47/32 (2006.01) B65D 47/38 (2006.01)

Patent

CA 2441431

A push/pull closure is disclosed the closure includes a body part (3) and a slider part (41). The slider part (41) can be moved between closed and opened positions. The body part (3) includes a nozzle section (15), a container neck engaging section (21), and an annular section (23). One feature of the closure is that the annular section (23) operates in an overcentre action to move the body part (3) from a raised position to a lowered position. As the annular section (23) moves to the lowered position the closure pierces a container membrane (7) to allow the container contents to be dispensed. Another feature of the closure is that the nozzle section (15) includes an air vent (71) that opens into a cavity (35) in which the slider part (41) slides between the open and closed positions. The air vent (71) spaced away from an outlet end (11) of the nozzle section (15) in order to minimised air entrainment as the contents of the container are being dispensed.

L'invention concerne une fermeture de type pousser-tirer, comprenant une portion principale (3) et une portion glissière (41). La portion glissière (41) peut être déplacée entre des positions ouverte et fermée. La portion principale (3) comprend une section bec (15), une section d'engrènement (21) avec un col de récipient, et une section annulaire (23). La fermeture se caractérise en ce que la section annulaire (23) fonctionne par arc-boutement pour déplacer la portion principale depuis une position haute vers une position basse. Au fur et à mesure que la section annulaire (23) se déplace jusqu'à la position basse, la fermeture perfore une membrane (7) de récipient pour permettre la libération du contenu du récipient. La fermeture se caractérise également en ce que la section bec (15) comprend une soupape d'évacuation d'air (71) s'ouvrant dans une cavité (35) dans laquelle la portion glissière (41) coulisse entre les positions ouverte et fermée. La soupape d'évacuation d'air (71) est espacée d'une extrémité d'évacuation (11) de la section bec (15) afin de minimiser l'entraînement de l'air pendant la libération du contenu du récipient.

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