Tear-open closure for a container

Details Tear-open closure for a container Tear-open closure for a container

1984-03-08

1985-02-26

Pollard, Steven M.

Bottles and jars

Closures

Self-sealing, piercable-type closure

215249, 215253, 220257, 220269, B65D 5100

Patent

active

045013721

ABSTRACT:
A tear-open closure for a container comprises a thermoplastic cap having score lines on its top wall defining separated top parts, and a gasket. The gasket has at least two puncture points with at least one puncture point covered by each top part. The closure can be opened such that only one puncture point is exposed by removal of one top part, while the other puncture point remains covered by the other top part. The cap top wall rests on the gasket between the two score lines.

REFERENCES:
patent: 2340419 (1944-02-01), Nawoj et al.
patent: 3071274 (1963-01-01), Ravin
patent: 3379326 (1968-04-01), Andersen
patent: 3509879 (1970-05-01), Bathish et al.
patent: 3744662 (1973-07-01), Zundel
patent: 3888377 (1975-06-01), Stadler
patent: 3904059 (1975-09-01), Bellamy, Jr. et al.

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