Owens-illinois Closure, Inc.

Frank L Sprowl

James L Gregory

Dennis J Burzynski

Bruce Jack Rote

A plastic beverage closure including a base wall, a peripheral skirt and a plurality of threads on the inner surface of the skirt for engagement with the threads of a container which may be made of glass or plastic. The plastic closure includes a compression molded seal extending about the periphery of the inner surface of the base wall and the juncture of the base wall to the peripheral skirt. The closure includes a central axially thickened portion; a channel surrounding the thickened portion and extending radially to an annular radially thickened portion on the skirt at the juncture with the base wall. A concave surface extends from the base of the channel and merges with the surface of the annular portion. A compression molded liner is provided on the thickened portion, channel and concave surface of the closure and defines a planar sealing surface of contact with the end surface of the finish of a container and an arcuate surface for engaging the arcuate surface of a container. In other forms, the closure can be used as a closure for non-beverage products.

Plastic closure with compression molded liner

A method of making a tamper indicating package comprising 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 includes a first continuous annular flange portion connected to the band by a hinge portion and a second portion. The second portion includes a plurality of segment portions extending upwardly and inwardly from the first continuous portion with the free ends of the segment portions engaging beneath the bead on the container when the closure is threaded onto the container. The flange is bent intermediate its ends so that the second portion extends inwardly at a greater angle than the first continuous flange portion. The segments are separated by narrow slits such that when the closure is fully applied on a container, and the closure is rotated to remove the closure, the free ends of the adjacent segment portions engage a bead on the container and are moved radially inwardly and the sides of the slits adjacent the free ends contact one another in an interfering manner to inhibit reversal of the segment portions and enhance resistance to removal.

Method for making a tamper indicating package

Method of making plastic beverage closure

A plastic beverage closure comprising a base wall, a peripheral skirt and a plurality of threads on the inner surface of the skirt for engagement with the threads of a container which may be made of glass or plastic. The plastic closure includes a compression molded seal extending about the periphery of the inner surface of the base wall and the juncture of the base wall to the peripheral skirt. The closure includes a central axially thickened portion; a channel surrounding the thickened portion and extending radially to an annular radially thickened portion on the skirt at the juncture with the base wall. A concave surface extends from the base of the channel and merges with the surface of the annular portion. A compression molded liner is provided on the thickened portion, channel and concave surface of the closure and defines a planar sealing surface of contact with the end surface of the finish of a container and an arcuate surface for engaging the arcuate surface of a container. In other forms, the closure can be used as a closure for non-beverage products.

Plastic beverage closure

A tamper indicating package comprising 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. The second portion comprises a plurality of segment portions extending upwardly and inwardly from the first continuous portion with the free ends of the segment portions engaging beneath the bead on the container when the closure is threaded onto the container. The flange is bent intermediate its ends so that the second portion extends inwardly at a greater angle than the first continuous flange portion. The segments are separated by narrow slits such that when the closure is fully applied on a container, and the closure is rotated to remove the closure, the free ends of the adjacent segment portions engage a bead on the container and are moved radially inwardly and the sides of the slits adjacent the free ends contact one another in an interfering manner to inhibit reversal of the segment portions and enhance resistance to removal.

Tamper indicating package

A plastic beverage closure comprising a base wall, a peripheral skirt and a plurality of threads on the inner surface of the skirt for engagement with the threads of a container which may be made of glass or plastic. The plastic closure includes a compression molded seal extending about the periphery of the inner surface of the base wall and the juncture of the base wall to the peripheral skirt. The closure includes a central axially thickened portion; a channel surrounding the thickened portion and extending radially to an annular radially thickened portion on the skirt at the juncture with the base wall. A concave surface extends from the base of the channel and merges with the surface of the annular portion. A compression molded liner is provided on the thickened portion, channel and concave surface of the closure and defines a planar sealing surface for contact with the end surface of the finish of a container and an arcuate surface for engaging the arcuate surface of a container.

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Sturgis, MI, United States of America

Frank L Sprowl