Tamper evident closure

Details Tamper evident closure Tamper evident closure

1987-02-24

1988-03-01

Norton, Donald F.

Bottles and jars

Closures

Including visual indicia

215254, B65D 4134

Patent

active

047279982

ABSTRACT:
A tamper evident mechanism for a bottle and closure assembly. The bottle and closure each have engaging means adapted for engagement with each other upon clockwise rotation of the closure means and for becoming interlocked against counterclockwise rotation to prevent removal of the closure. A tear tab and associated frangible strips are provided on the skirt of the closure. The tear tab is disposed within an indentation on the outer surface of the closure. Pulling off the tear tab along the frangible strips accomplishes removal of the interlocked engaging means, freeing the closure for counterclockwise rotation and removal. At the same time a gaping hole is imparted to the skirt of the cap providing visual evidence of tampering.

REFERENCES:
patent: 2169686 (1939-08-01), Fabrice
patent: 4209101 (1980-06-01), Brown
patent: 4261478 (1981-04-01), Summers
patent: 4452363 (1984-06-01), Davis
patent: 4456136 (1984-06-01), Palsson
patent: 4471878 (1984-09-01), Davis et al.
patent: 4548329 (1985-10-01), Curry
patent: 4567991 (1986-02-01), Anderson

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