Tamper-proof closure

Details Tamper-proof closure Tamper-proof closure

1978-12-01

1980-08-19

Hall, George T.

Bottles and jars

Closures

Frangible member or portion

215258, 215252, B65D 4132

Patent

active

042179890

ABSTRACT:
A new tamper-proof closure includes a cap having a plurality of circumferentially spaced slits separated by bridges with a plurality of lines of weakness extending perpendicular to the slits and aligned with the respective bridges. The lines of weakness have a residual thickness which varies between opposite ends.

REFERENCES:
patent: 3837519 (1974-09-01), Perry
patent: 3861551 (1975-01-01), Hannon

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