Container seal with tamper indicator

Details Container seal with tamper indicator Container seal with tamper indicator

1983-03-03

1985-04-16

Norton, Donald F.

Bottles and jars

Closures

Including visual indicia

215232, 206807, B65D 5502

Patent

active

045110522

ABSTRACT:
A container assembly is disclosed which incorporates a chemical indicator normally hermetically sealed from the ambient atmosphere, but exposed to the atmosphere upon opening of the container assembly. The indicator is adapted for changing appearance, either color or granule or crystal form, upon exposure to moisture or oxygen. The indicator is either located in the interior of a hermetically sealed container, or is sealed in a frangible envelope which is operatively associated with a closure member of the container and is ruptured upon opening, or attempted opening of the container.

REFERENCES:
patent: 3899295 (1975-08-01), Halpern
patent: 3923198 (1975-12-01), Brochman
patent: 4407429 (1983-10-01), Hekal
patent: 4424911 (1984-01-01), Resnick

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