Tamper evident closure with tear out tab integrally molded witho

Details Tamper evident closure with tear out tab integrally molded witho Tamper evident closure with tear out tab integrally molded witho

1990-05-29

1991-01-22

Marcus, Stephen

Bottles and jars

Closures

Frangible member or portion

215252, 215216, B65D 4132

Patent

active

049864300

ABSTRACT:
A tamper evident closure is integrally molded in a straight draw mold with a tear out tab extending laterally outward adjacent a slot in the free edge of the closure skirt and connected to the skirt by flexible, frangible bridges. After the closure is removed from the straight draw mold, the tear out tab is rotated about the flexible, frangible bridges into the slot and is retained therein by bevelled engagement ribs along the side edges of the tear out tab which snap over and engage the side edges of the slot. A radially inwardly directed projection on the tear out tab engages the conventional transfer bead on a container, and remains engaged thereby as the closure is unthreaded, thus, producing an axial force which fractures the bridges. The tear out tab then slides free of engagement with the edges of the slot and separates leaving a visual indication of prior removal of or tampering with the closure. If an attempt is made to reinsert the tear out tab in the slot, the torn ends of the fractured bridges extend laterally outward to provide an indication of the tampering.

REFERENCES:
patent: 2092547 (1937-09-01), Allenbaugh
patent: 2470057 (1949-05-01), Spender
patent: 4190169 (1980-02-01), Pehr
patent: 4372456 (1983-02-01), Guala
patent: 4393978 (1983-07-01), Kessler et al.
patent: 4401227 (1983-08-01), Pehr
patent: 4423822 (1984-01-01), Powalowski
patent: 4752013 (1988-06-01), Miller et al.
patent: 4752014 (1988-06-01), House et al.

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