Container / closure package having improved seal

Details Container / closure package having improved seal Container / closure package having improved seal

B - Operations, Transporting

65

D

B65D 51/14 (2006.01)

Patent

CA 2628619

A container / closure package 10 comprising a container 12 and a composite closure 40. The container 12 includes a finish portion 16 that terminates in an opening having a peripheral circular lip 26. A taper 36 is formed on an internal surface of the finish portion 16 and this taper 36 merges into the lip 26. The closure 40 includes a circular skirt or band 42, an insert disk 44, and a sealant 74. The insert disk 44 includes a peripheral bead 60, a raised channel 62 inboard of the peripheral bead and a circular centre portion 64 inboard of the channel. The raised channel 62 has an outer wall 66, a substantially flat top portion 68, and an inner wall 70 sloped at approximately the same angle as the taper angle of the container finish portion 16.

La présente invention concerne un emballage « contenant / fermeture » 10 comprenant un contenant 12 et une fermeture 40 composite. Le contenant 12 comprend une partie de finition 16 qui se termine par une ouverture pourvue d~une lèvre circulaire périphérique 26. Une conicité 36 est formée sur une surface interne de la partie de finition 16, ladite conicité 36 se combinant à la lèvre 26. La fermeture 40 comprend une jupe ou bande circulaire 42, un disque d~insertion 44 et un matériau d~étanchéité 74. Le disque d~insertion 44 comprend un bourrelet périphérique 60, un passage rehaussé 62 à l~intérieur du bourrelet périphérique et une partie centrale circulaire 64 à l~intérieur du passage. Le passage rehaussé 62 possède une paroi externe 66, une partie supérieure sensiblement plate 68, et une paroi interne 70 dont l~inclinaison suit un angle presque similaire à l~angle de conicité de la partie de finition 16 du contenant.

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