Container having vacuum panels
AssigneeAmcor Limited
InventorsWalter J. Strasser, Steve P. Barker
Life of this patent
Estimating the term…
Abstract
A plastic container includes an upper portion having a mouth defining an opening into the container. A shoulder region extends from the upper portion. A sidewall portion extends between the shoulder region and a base portion. The base portion closes off an end of the container. A vacuum panel region defined in part by at least two vacuum panels. Each of the vacuum panels are movable to accommodate vacuum forces generated within the container resulting from heating and cooling of its contents. The vacuum panel region occupies an area outboard of the sidewall portion.
Claims26
A plastic container comprising:
- an upper portion having a mouth defining an opening into said container;
- a shoulder region extending from said upper portion;
- a sidewall portion extending between said shoulder region and a base portion, said base portion closing off an end of said container;
- and
- a vacuum panel region formed on the plastic container and defined in part by at least two vacuum panels formed therein, each of said at least two vacuum panels being movable to accommodate vacuum forces generated within the container resulting from heating and cooling of its contents, said vacuum panel region occupying an area outboard of said sidewall portion.
A plastic container filled with a liquid at an elevated temperature, sealed with a closure, and cooled thereby establishing a vacuum within said container, said container comprising:
- an upper portion having a mouth defining an opening into said container;
- a shoulder region extending from said upper portion;
- a sidewall portion defining a substantially circular shape in horizontal cross-section, said sidewall portion extending between said shoulder region and a base portion, said base portion closing off an end of said container;
- and
- a vacuum panel region formed on the plastic container and defining a substantially hexagonal shape in horizontal cross-section wherein a vacuum panel is defined on each of six sides defined by said vacuum panel region, each of said vacuum panels being movable to accommodate vacuum forces generated within the container resulting from heating and cooling of its contents.
A plastic container filled with a liquid at an elevated temperature, sealed with a closure, and cooled thereby establishing a vacuum within said container, said container comprising:
- an upper portion having a mouth defining an opening into said container;
- a shoulder region extending from said upper portion;
- a label panel area defining a substantially circular shape in horizontal cross-section, said label panel area extending between said shoulder region and a base portion, said base portion closing off an end of said container;
- and
- a vacuum panel region formed on the plastic container defining a plurality of planar vacuum panels each extending substantially parallel to a longitudinal axis of the container, wherein each of said vacuum panels is movable to accommodate vacuum forces generated within the container resulting from heating and cooling of its contents, and is offset outboard of said label panel area.
Dependencies are inferred from the claim text.