Double bead track cap system

Details Double bead track cap system Double bead track cap system

1989-01-11

1990-03-13

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

215258, B65D 4134

Patent

active

049077082

ABSTRACT:
Tamper-evident closures for application to containers are disclosed. The closures include a cylindrical side wall, a series of frangible bridges, and an annular skirt, and the skirt includes on its inner wall an upper raised portion, a lower raised portion, and an indented central portion therebetween. In this manner, an annular collar on the container can be locked between these upper and lower raised portions on the annular skirt portion of the closure, and this can result in improved consistent fracture of the frangible bridges upon removal of the closure from the container.

REFERENCES:
patent: 4461390 (1984-07-01), Csaszar
patent: 4567993 (1986-02-01), Albrecht et al.
patent: 4669623 (1987-06-01), Csaszar

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