Closure for containers

Bottles and jars – Closures – Including visual indicia

Patent

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Details

215235, 215253, 215256, B65D 4148

Patent

active

048609072

ABSTRACT:
A container closure formed in its closed state of a springy, elastomeric plastic, to be snapped onto the neck of a container with a ring-shaped retaining portion (2). The retaining portion (2) is connected via a hinge (10) to a re-closable lid (3). A tear-off strip is formed in the join between the lid and the retaining portion in the area opposite the hinge (10). The strip (4) is defined by scoring (6, 7) to diminish its strength. A seal is provided in the join between the lid (3) and the retaining portion (2), in the circumferential sections between the hinge (10) and the ends of the tear-off member (4), said seal being in the form of material bridges (5) spaced around the circumference of the closure. The tear-off strip (4) extends along approximately half the circumference of the closure and is connected with substantially rigid joins between the lid (3) and the retaining ring (2) so that the closure can be pressed onto the neck of the container without the material bridges (5) being broken. When the lid (3) is opened at the hinge (10) and the bridges (5) are thus broken, substantially by pure tensile stress, an accoustic signal will be obtained if the bridges (5) were unbroken.

REFERENCES:
patent: 3438529 (1969-04-01), Lohrer
patent: 4129226 (1978-12-01), Percival
patent: 4702383 (1987-10-01), Wender

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