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US 8,616,395 B2Granted
Hot-fill container having vacuum accommodating base and cylindrical portions
AssigneeAmcor Limited
InventorsTerry D. Patcheak, David Downing, Frederick C. Beuerle, Walter J. Strasser, Christopher Howe, Luke A. Mast
Life of this patent
Estimating the term…
Abstract
A container body and base being lightweight structures designed to accommodate vacuum forces either simultaneously or in sequence. The container body and base each absorb a significant percentage of the vacuum. By utilizing a lightweight base design to absorb a portion of the vacuum forces enables an overall light-weighting, design flexibility, and effective utilization of alternative vacuum absorbing capabilities on the container body.
Claims10
A plastic container comprising:
- an upper portion having a mouth defining an opening into the container;
- a base having a plurality of vacuum features formed along an underside thereof, said vacuum features of said base being movable to accommodate vacuum forces generated within the container thereby decreasing the volume of the container, said base being movable in response to a vacuum level less than 5% of said vacuum forces;
- and
- a substantially cylindrical portion extending between said upper portion and said base, said cylindrical portion having at least one horizontal circumferential rib, said at least one horizontal circumferential rib having a rib width to rib depth ratio of about 1.6 to about 2.0, and being movable to accommodate vacuum forces generated within the container thereby decreasing the volume of the container, said cylindrical portion being movable in response to a vacuum level less than 5% of said vacuum forces.
1 more element
A plastic container comprising:
- an upper portion having a mouth defining an opening into the container;
- a base having a plurality of vacuum features formed along an underside thereof, said vacuum features of said base being movable to accommodate vacuum forces generated within the container thereby decreasing the volume of the container, said base accommodating between 10% and 90% of said vacuum forces;
- and
- a substantially cylindrical portion extending between said upper portion and said base, said cylindrical portion having at least one horizontal circumferential rib, said at least one horizontal circumferential rib having a rib width to rib depth ratio of about 1.6 to about 2.0, and being movable to accommodate vacuum forces generated within the container thereby decreasing the volume of the container, said cylindrical portion accommodating between 10% and 90% of said vacuum forces.
1 more element
Dependencies are inferred from the claim text.