Method of making a tamper indicating package

Details Method of making a tamper indicating package Method of making a tamper indicating package

1992-01-16

1993-06-15

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Plural sequential shaping or molding steps on same workpiece

264296, 264320, 264339, B29C 5302

Patent

active

052195074

ABSTRACT:
Method of making a tamper indicating package including a container having a neck with a threaded finish, an annular bead on the neck, a plastic closure which includes a base wall and a depending peripheral skirt having threads interengaging the threads of the container, and a tamper indicating band attached to the skirt by a plurality of weakened portions defining a line of severing. An annular flange extends axially upwardly and inwardly from the tamper indicating band toward the base wall of the closure and comprises a first continuous annular flange portion connected to the band by a hinge portion and a second portion which has free ends of the segment portions engaging beneath the bead on the container when the closure is threaded onto the container. In one form the second portion includes a plurality of segment portions extending upwardly and inwardly from the first continuous portion. In another form, the second portion includes a second continuous flange portion. The flange is bent intermediate its ends so that the second portion extends inwardly at a greater angle than the first continuous flange portion.

REFERENCES:
patent: 4394918 (1983-07-01), Grussen
patent: 4550844 (1985-11-01), Lininger
patent: 4595547 (1986-06-01), Herr
patent: 4653657 (1987-03-01), Papavasilopoulos
patent: 4807771 (1989-02-01), Roy
patent: 4848614 (1989-07-01), Csaszar

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