Bottles and jars – Closures – Frangible member or portion
Patent
1978-04-17
1980-04-08
Hall, George T.
Bottles and jars
Closures
Frangible member or portion
215344, 215DIG1, 113121A, 53485, B65D 4134, B65D 4136, B65D 4138
Patent
active
041968182
ABSTRACT:
The present invention is concerned with a one-piece pressure resistant container closure including a pilfer proof ring and associated sealing means provided in or towards the crown of the closure whereby it is possible to apply the closure to a container without substantial risk of rupture between a skirt extension portion of the closure constituting a security ring and the remainder of the closure. To this end, there is provided in combination a closure having a crown portion and a skirt depending from the periphery of the crown portion, the skirt including retaining means to cooperate with corresponding means to retain the closure about a container neck, and characterized by a flexible annular sealing ring depending from an internal surface of the closure inclined inwardly towards the closure axis and adapted to engage in sealing relationship with a container neck, a support ring juxtaposed the sealing ring to limit flexing of the sealing ring on application of the closure to a container, the skirt extension having a pilfer proof security portion which, on application to the container neck enters over a security band portion on the neck of the container without rupture.
REFERENCES:
patent: 3067900 (1962-12-01), Kessler
patent: 3203571 (1965-08-01), Plunkett
patent: 3737064 (1973-06-01), Patel
patent: 3986627 (1976-10-01), Zapp
patent: 4061240 (1977-12-01), Brownbill
Hall George T.
Metal Closures Group Limited
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