Tamper-indicating closure

Details Tamper-indicating closure Tamper-indicating closure

1982-12-09

1984-07-10

Moy, Joseph Man-Fu

Bottles and jars

Closures

Frangible member or portion

215253, B65D 4134

Patent

active

044588216

ABSTRACT:
This invention relates to a thermoplastic tamper-indicating closure. The closure features a top wall and an annular downwardly depending sidewall. Connected to the lower end of the annular sidewall by way of an annular area is an annular tamper-indicating band. The annular area has a frangible and a non-frangible portion. The tamper-indicating band has a vertical frangible area which extends across its width and which is preferably generally opposite the non-frangible area. The tamper-indicating band also features an annular upper portion which depends downwrdly from the annular area. The band additionally has an annular lower portion hingedly connected to the annular upper portion and which comprises a plurality of spaced apart tabs with each tab connected to its neighboring tab by way of a flexible web. Each of the tabs preferably has a scalloped recess at their lower extent to provide some circumferential flexibility when the annular lower portion of the band is hinged inwardly from its molded position to its utilitarian position.

REFERENCES:
patent: 3374913 (1968-03-01), Zipper
patent: 3484012 (1969-12-01), White et al.
patent: 3861551 (1975-01-01), Hannon
patent: 4157144 (1979-06-01), Weiler et al.
patent: 4291813 (1981-09-01), Allen et al.
patent: 4394918 (1983-07-01), Grussen
patent: 4401227 (1983-07-01), Pehr

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