Bridge design for tamper evident closures

Details Bridge design for tamper evident closures Bridge design for tamper evident closures

1990-07-26

1992-10-06

Marcus, Stephen

Bottles and jars

Closures

Self-sealing, piercable-type closure

215251, 215258, B65D 5118

Patent

active

051524139

ABSTRACT:
A device for forming a closure, including first and second dies for cooperatively forming the closure. The dies come into mutual contact against both sides of an annular disc. The dies form a center hole and cooperatively operate to form a shoulder and skirt on the outer part of the closure. The annular center section and bridges are formed by action of a plurality of die stems which form a recessed dependent lip on the shoulder and which form frangible bridges connecting the lip to the central section.

REFERENCES:
patent: 3071274 (1963-01-01), Raun
patent: 3358865 (1967-12-01), Andersen
patent: 3587897 (1971-06-01), Rohde
patent: 4471879 (1984-09-01), Connor et al.
patent: 4709823 (1987-12-01), Beck et al.

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