Silgan White Cap LLC

Portola Packaging Limited

Thomas P Hennessy

Gary L Berge

Sungsuk Steve Kim

Richard D Lohrman

A closure includes a hinged sealing element including a top wall and a first skirt. The first skirt has a sealing formation allowing engagement of a mating sealing formation of a bottle. A second skirt has an attachment formation engageable with a mating attachment formation of the bottle. A plurality of frangible members is attached to each of the skirts. A pair of hinge members is attached between the first and second skirts. A biasing member is attached to the first skirt between the hinge members and extending downwardly from the first skirt to interact with a neck portion of the bottle such that the sealing formation of the first skirt and the mating sealing formation of the bottle are biased toward each other.

Tethered flip closure

A closure includes a flip-top structure and a tamper-evident band. The flip-top structure is restricted from being opened because it interfaces against an underlying protrusion, such as a thread of a container's neck. To open the flip-top structure the closure is rotated with respect to the container neck. When the closure is rotated with respect to the container neck, the closure is configured such that the tamper-evident band breaks before the flip-top structure is permitted to rotate to an open position. Thus, the closure prevents accessing the container's contents until after the tamper-evident band is broken even with the addition of a flip-top structure.

Tamper evident flip cap

Closure

In an embodiment of the invention there is provided a membrane fitment designed and sized to be inserted into the orifice defined by a container. Retention structure on the fitment cooperates with complimentary structure on the internal wall of the container orifice to secure the fitment within the orifice such that the combination forms an excellent primary seal. Tamper evidence is offered by the normal requirement for initial membrane removal. Novel designs for the membrane, its associated pull ring, and the frangible removal structure are taught in various embodiments. The novel designs may promote facile initial removal suitable for a child. In addition, the novel designs avoid the potential hazards presented by prior art membranes.

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Naperville, IL, United States of America

Thomas P Hennessy