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US 8,256,640 B2Granted
Container apparatus and related methods
AssigneeRopak Corporation
InventorsFrano Luburic, Joshua Dana Urban, Ralph G. Perkins
Life of this patent
Estimating the term…
Abstract
A container includes: a base; one or more sidewalls integrally formed with and extending upwardly from the base, wherein the sidewalls surround an internal cavity and wherein one or more of the sidewalls include a reinforcing web of increased wall thickness; and an upper edge on the sidewalls defining a top opening.
Claims50
A container, comprising:
- a base;
- one or more sidewalls integrally formed with and extending upwardly from the base, wherein the sidewalls surround an internal cavity and wherein one or more of the sidewalls include a reinforcing web of increased wall thickness, the reinforcing web having an uninterrupted repeating geometric pattern;
- one or more corners between adjacent sidewalls, wherein one or more of the corners include a continuation of the reinforcing web present on the one or more sidewalls;
- and an upper edge on the sidewalls defining a top opening;
- wherein the reinforcing web includes channels having a tapered cross-section with a maximum thickness near a center of the channel cross section.
2 more elements
A container, comprising:
- a plastic base enclosing a bottom of the container, the plastic base including at least one gate site and flow leaders having increase thickness connecting to the at least one gate site;
- wherein the flow leaders have curved surfaces from a cross-sectional perspective;
- plastic sidewalls integrally formed with and extending upwardly from the base, wherein the sidewalls surround an internal cavity and include a reinforcing web having channels of increased thickness, wherein the width of sidewalls near the upper edge are greater than the width of sidewalls farther from the upper edge, wherein the channels connect to the flow leaders, wherein the channels includes rows and columns of channels, wherein the channels have curved surfaces from a cross-sectional perspective, and wherein the sidewalls are bowed away from the internal cavity;
- an upper edge on the sidewalls defining a top opening;
- and
- one or more plastic horizontal ribs integrally formed with and extending around the upper portion of the sidewalls.
3 more elements
A method of manufacturing a container, comprising:
- forming a substantially solid base;
- forming one or more sidewalls integral with the base and extending upwardly from the base, wherein the sidewalls surround an internal cavity and wherein one or more of the sidewalls include a reinforcing web having increased wall thickness, the reinforcing web having an uninterrupted repeating geometric pattern;
- forming one or more corners between adjacent sidewalls, wherein one or more of the corners include a continuation of the reinforcing web present on the one or more sidewalls;
- and forming an upper edge on the sidewall defining a top opening;
- wherein the reinforcing web includes channels having a tapered cross-section with a maximum thickness near a center of the channel cross-section.
2 more elements
A container, comprising:
- a plastic base sealing a bottom of the container;
- a plurality of plastic sidewalls integrally formed with and extending upwardly from the base, wherein the sidewalls surround an internal cavity except for a top opening;
- a corner between adjacent sidewalls;
- and
- a reinforcing web having rows and columns of channels of increased wall thickness on an inner surface of the sidewalls and the corner, wherein at least one row channel and at least one column channel extend from a first of the sidewalls across the corner to a second of the sidewalls, wherein the at least one row channel and the at least one column channel intersect at the corner;
- wherein the channels of the reinforcing web have a tapered cross-section with a maximum thickness near a center of the channel cross section.
3 more elements
Dependencies are inferred from the claim text.