Ball Corporation

Amcor Rigid Plastics Usa, LLC

Elizabeth D Maczek

Richard J Steih

Kirk Edward Maki

Bradley Wilson

Chris Labombarbe

Kirk Firestone

A controlled release container including a base. The base has a flexible diaphragm movable between a relaxed position and a depressed position. In the depressed position the flexible diaphragm reduces an interior volume of the container to dispense a dosage amount of material stored within the container. The dosage amount directly corresponds to an internal volume of the container displaced by moving the flexible diaphragm to the depressed position.

Controlled release container

A base including an inwardly and upwardly projecting flexible surface within a continuous seating ring supports a generally cylindrical wall extending upward from the base. A plurality of annular inwardly projecting, and vertically flexible rings interrupting the cylindrical wall. At least one of rings projects inwardly more than some others of the rings to achieve an improved sidewall crush resistance A shoulder portion, includes a plurality of vertical ribs separating a plurality of vacuum responsive panels. The vertical flexibility of the bottle sidewall reduces the amount of flexing required in the shoulder panels and base to accommodate the same vacuum development, and enhances the total amount of post capping vacuum development that can be accommodated by the bottle as a whole.

Hot-fillable bottle

Growing community of inventors

Westminster, CO, United States of America

Elizabeth D Maczek