Color indicating tamper-proof seal

Details Color indicating tamper-proof seal Color indicating tamper-proof seal

1989-06-12

1991-01-22

Marcus, Stephen

Bottles and jars

Closures

Including visual indicia

206459, 206807, 4283215, 428916, B65D 5118

Patent

active

049864297

ABSTRACT:
A tamper-proof seal employed with a container comprising a plurality of frangible cells filled with a harmless colored substance. The cells may either be located between two hermetically sealed plastic sheets or formed on the exterior of the seal and upon puncturing or applying pressure necessary for entry into the container the cells rupture releasing the substance to provide a visual indication that tampering with the container may have occurred.

REFERENCES:
patent: 3896965 (1975-07-01), Cornell
patent: 4424911 (1984-01-01), Resnick
patent: 4429803 (1984-02-01), Butterfield
patent: 4480760 (1984-11-01), Schonberger
patent: 4511052 (1985-04-01), Klein et al.
patent: 4516679 (1985-05-01), Simpson et al.
patent: 4526752 (1985-07-01), Perlman et al.
patent: 4685578 (1987-08-01), Dunshee
patent: 4685579 (1987-08-01), Stapleton
patent: 4755405 (1988-07-01), Massucco et al.
patent: 4760919 (1988-08-01), Pereyra

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