Improvements in closures

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 41/32 (2006.01) B65D 41/20 (2006.01) B65D 41/62 (2006.01) B65D 43/02 (2006.01) B65D 51/16 (2006.01)

Patent

CA 2456259

A closure for the open mouth of an airtight container. The closure has a resiliently flexible diaphragm (13) which has a peripheral edge (37) which can sealing engage against an inside wall surface of the open mouth. The diaphragm (13) is engaged with the second cover section (12) of a cover. A pair of toggles (24) are pivotally mounted on axles (22) of second cover section (12). The levers (30) of the toggles (24) extend through an opening (44) in the first or outer cover section (11) when the first and second cover sections (11, 12) are snap-locked together. By moving the levers (30) toward one another the respective feet (27) of the toggle (24) engage with area (35) of the diaphragm (13) to deform the diaphragm and thereby break a sealing effect between the peripheral edge of the diaphragm and the inside wall surface of the open mouth.

L'invention concerne un élément de fermeture pour une ouverture d'un contenant hermétiquement clos. Ledit élément de fermeture présente un diaphragme (13) élastiquement souple qui comporte un bord périphérique (37) pouvant entrer en contact de manière étanche avec une surface de paroi intérieure de l'ouverture. Ledit diaphragme (13) est mis en contact avec une seconde partie couvercle (12) d'un couvercle. Une paire de charnières mobiles (24) sont montées pivotantes sur des axes de la seconde partie couvercle (12). Des leviers (30) des charnières mobiles (30) s'étendent à travers un passage (44) dans la première partie couvercle (11) lorsque la première et la seconde partie couvercle (11, 12) sont bloquées par encliquetage. Par déplacement des leviers (30) l'un vers l'autre, les parties inférieures (27) respectives de la charnière mobile (24) entrent en contact avec une zone (35) du diaphragme (13) afin que celui-ci soit déformé, ce qui permet d'interrompre un effet d'étanchéité entre le bord périphérique du diaphragme et la surface de paroi intérieure de l'ouverture.

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