Seal for container safety plug

Details Seal for container safety plug Seal for container safety plug

1983-05-19

1984-07-10

Hall, George T.

Bottles and jars

Closures

Having warning means or means impeding closure removal

215299, B65D 5502

Patent

active

044588194

ABSTRACT:
A removal-resistant plug or closure for a container has a slide radially extensible beyond the circumference of the plug and container to provide a gripping surface for removal of the plug. With the slide retracted, the exterior surfaces of the plug is smooth and devoid of any gripping surface. A seal attached after the container is filled and the plug inserted is provided by a cavity which extends across a lateral edge of the slide and the adjacent portion of the slide guide in the plug. A marker plate is attached to cover the cavity such that when the slide is moved, the portions of the cavity are misaligned to break the marker plate from the plug to provide a visible indication that the seal has been broken.

REFERENCES:
patent: 4098417 (1978-07-01), Bennett
patent: 4098418 (1978-07-01), Fields
patent: 4146146 (1979-03-01), Mar
patent: 4358022 (1982-11-01), Geiger

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