Bottles and jars – Closures – Frangible member or portion
Patent
1980-08-29
1982-05-25
Norton, Donald F.
Bottles and jars
Closures
Frangible member or portion
215321, B65D 4148
Patent
active
043312489
ABSTRACT:
A one-piece container closure having special utility for use with pressurized containers, such as champagne bottles, is disclosed. The closure includes a shank and a top, attached to the upper end of the shank, which combine to seal the bottle. A pleated, resilient skirt depends from the top and surrounds the ring on the neck of the bottle. A plurality of retaining shoulders extend inwardly from the skirt to engage a lower surface on the ring. The retaining shoulders have an upwardly and inwardly inclined surface so that when capping the bottle, the inclined surface rides against the ring on the bottle. A tear strip attached along the lower edge of the skirt inhibits the radial expansion of the lower edge of the skirt. As the retaining shoulders of the cap are forced over the ring, the upper portion of the shoulders pivot outwardly. After clearing the ring, the resilient skirt pivots the shoulders under the ring. To remove the cap from the bottle, the tear strip is torn away. This allows the entire skirt to expand radially and permit the retaining shoulders to become disengaged from under the ring on the bottle when the cap is pulled upwardly.
REFERENCES:
patent: 2993612 (1961-07-01), Trautvetter
patent: 3032226 (1962-05-01), Terwilliger
patent: 3300073 (1967-01-01), Benz
patent: 3338446 (1967-08-01), Faulstich
patent: 3462035 (1969-08-01), Grussen
patent: 3905502 (1975-09-01), Wassilieff
patent: 4166552 (1979-09-01), Faulstich
patent: 4192428 (1980-03-01), Segmuller
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