Container closure

Details Container closure Container closure

B - Operations, Transporting

65

D

206/59

B65D 39/04 (2006.01)

Patent

CA 1098486

ABSTRACT OF THE DISCLOSURE The present invention provides a container closure comprising a container opening with a neck projecting inwards and a cap device closing the container opening, with a tubular part that can be inserted into the container opening, the tubular part and the container opening being shaped so that against the effect of an internal pressure in the container the cap device is retained in sealing engagement with the container opening, the inward-projecting neck of the container opening having an inner surface which conically diminishes downwards and which at the lower end of the neck cuts the lower end surface of the neck under an acute angle, whereby the annular line of intersection or edge formed is arranged so that it engages with a groove in the tubular part of the cap device, so that by resting against a lower boundary surface of the groove it retains the cap device in the container opening, the inner surface of the neck, in an annular region situated slightly above the edge, being arranged to provide a sealing closure for the container by resting against a lip-shaped sealing ring situated at the upper boundary surface of the groove.

270472

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