Bottle cap

Details Bottle cap Bottle cap

1985-04-03

1986-08-12

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

B65D 4142

Patent

active

046051376

ABSTRACT:
A bottle cap of the tear-off type, particularly an easy-to-open cap for wide mouth bottles, in which a central top wall which covers the top portion of the mouth of the bottle is connected to a lateral band which surrounds the opening of the neck of the bottle and is bent under the edge of the neck to grip the cap, while a tear-off tab, bounded by one or more score lines, extends from the top wall through the lateral band and an angular sealing gasket is interposed between the mouth of the bottle and the top wall and the lateral band, respectively. The angular sealing gasket is bonded to the undersurface of the central top wall at a bond area inside the score line or lines, whereby, when the cap is broken by lifting the central top wall by means of the tear tab, the angular sealing gasket is lifted with it in one piece and slips off from underneath the lateral band, ousting it.
The sealing gasket can also be bonded to the tear tab at the area bounded by the score line or lines towards the lateral band, to make the lifting of the sealing gasket itself along with the central top wall easier, without breaking it.

REFERENCES:
patent: 3963140 (1976-06-01), Harding
patent: 3974931 (1976-08-01), Moller
patent: 4003488 (1977-01-01), Moller

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