Container and pressure sealing closure combination

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 41/18 (2006.01) B65D 43/02 (2006.01) B65D 51/16 (2006.01)

Patent

CA 2106123

ABSTRACT CONTAINER AND PRESSURE SEALING CLOSURE COMBINATION A container and pressure sealing closure combination in which the closure (24) includes a rim portion (26) engaging the mouth (22) of the container (20), a substantially rigid central portion (28) and an annular toggle portion (30) pivotally connected to and interconnecting the rim portion and central portion, whereby upward movement of the central portion in response to internal pressure of the contents of the container pivots the toggle portion to urge the rim portion substantially radially outwardly against the mouth, thereby effecting a seal. In a preferred embodiment, the inner surface of the container mouth includes a plurality of axially-extending channels (62) for conducting pressurized gaseous contents of the container between the closure and the container to the ambient. The outer surface of the mouth (68) includes an annular recess (66) which receives the plurality of radially inwardly projecting ribs (70) on the rim portion, thereby effecting engagement between the closure and container. The closure includes a tab which is pivoted upwardly to remove the closure from the container.

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