Metallic end closure for small diameter container
AssigneeBall Corporation
InventorFlorian Andre-Guern
Life of this patent
Estimating the term…
Abstract
The present disclosure generally relates to containers and container end closures, and more specifically metallic end closures for small diameter metallic beverage containers. The present disclosure also relates to the tooling used to form the novel end closure, where the tooling is itself novel. The change of the angles on the die core ring improve the mobility of the metal while forming the end closure. Specifically, when manufacturing the new end closure with the new tooling, the press output is increased by over five times.
Claims7
A metallic end closure, comprising:
- a peripheral curl which is adapted for interconnection to a neck of a beverage container;
- a chuckwall extending downwardly from said peripheral curl;
- a countersink interconnected to a lower end of said chuckwall;
- an inner panel wall extending upwardly from an interior portion of said countersink;
- a substantially linear panel wall interconnected to an upper portion of said inner panel wall;
- a center panel interconnected to an upper portion of said substantially linear panel wall;
- a pull tab having a nose end and a tail end which is operably interconnected to said central panel;
- a first score line in said central panel which defines a tear panel;
- and
- a diameter measured from an outer edge of the unseamed peripheral curl of about 2.240 inches.
A method of manufacturing a metallic end closure, comprising:
- providing a metallic blank;
- and
- forming the metallic blank into an end closure comprising:
- a peripheral curl which is adapted for interconnection to a neck of a beverage container;
- a chuckwall extending downwardly from said peripheral curl;
- a countersink interconnected to a lower end of said chuckwall;
- an inner panel wall extending upwardly from an interior portion of said countersink;
- a center panel interconnected to an upper portion of said inner panel wall;
- a pull tab having a nose end and a tail end which is operably interconnected to said central panel;
- a first score line in said central panel which defines a tear panel;
- and
- a diameter measured from an outer edge of the unseamed peripheral curl of about 2.240 inches.
A metallic beverage container, comprising:
- a container body comprising a closed bottom end, an open upper end, and a cylindrical sidewall;
- a neck interconnected to the open upper end of the container body;
- and
- an end closure interconnected to the neck, the end closure comprising:
- a peripheral curl which is adapted for interconnection to a neck of a beverage container;
- a chuckwall extending downwardly from said peripheral curl;
- a countersink interconnected to a lower end of said chuckwall;
- an inner panel wall extending upwardly from an interior portion of said countersink;
- a substantially linear panel wall interconnected to an upper portion of said inner panel wall;
- a center panel interconnected to an upper portion of said substantially linear panel wall;
- a pull tab having a nose end and a tail end which is operably interconnected to said central panel;
- a first score line in said central panel which defines a tear panel;
- and
- a diameter measured from an outer edge of the unseamed peripheral curl of about 2.240 inches.
Dependencies are inferred from the claim text.