Tear-off container closure

Details Tear-off container closure Tear-off container closure

1987-11-10

1988-09-06

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

215304, B65D 4142

Patent

active

047686677

ABSTRACT:
A tear-off container closure, such as a cap for sealing bottles, has an upper covering panel, a cylindrical cap skirt, a tear-off strip defined by score lines in the covering plate and cap skirt. The strip continues as (a) a tongue protruding outside the cap skirt and (b) a pulling member joined to the tongue of the tear-off strip. The pulling member includes a connecting portion, made of plastic. This connecting portion is joined to the tongue of the tear-off strip to form a joint between tongue and connecting portion which joint is resistant to tensile and torsional stress. The outwardly directed side of the joint is also provided with a protruding spacer, the upper operative surface of which is spaced from the root of the tongue by a distance substantially less than the height of the cap skirt.

REFERENCES:
patent: 2046173 (1936-06-01), Lenhoff
patent: 3206055 (1965-09-01), Helbing
patent: 4149647 (1979-04-01), Ritzenfoff
patent: 4453644 (1984-06-01), Berglund

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