Self-venting bottle closure

Details Self-venting bottle closure Self-venting bottle closure

1977-01-19

1978-02-28

Hart, Ro E.

Bottles and jars

Closures

Receptacle interior communicable with exterior with closure...

215260, 215270, 215271, B65D 5116

Patent

active

040761428

ABSTRACT:
In champagne and other types of effervescent wines which generate gases when bottled and enclosed by a cork which is used as a stopper, the cork is usually wired to the mouth of the bottle to prevent it from being blown therefrom should the pressure build up sufficiently therewithin. When the wire is removed and the cork moved from side to side, it will be released from the neck of the bottle and shot therefrom with a substantial force. A towel is usually wound over the cork and neck of the bottle before being released to prevent someone from being injured when the cork is blown from the bottle neck. The wire was eliminated when a hollow plastic stopper was developed as the pressure within the stopper was applied in all directions forcing the side against the inner surface of the bottle neck an amount corresponding to the increase in pressure. The present invention relates to changes in the hollow cork which permits the internal pressure to be released before the stopper is removed from the neck to thereby reduce the hazards of having the stopper violently ejected therefrom.

REFERENCES:
patent: 3944104 (1976-03-01), Watson

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