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US 6,460,723 B2Granted
Metallic beverage can end
AssigneeBall Corporation
InventorsTuan A. Nguyen, Jess N. Bathurst
Life of this patent
Estimating the term…
Abstract
The present invention describes a beverage can end which utilizes less material and has an improved internal buckle strength based on the geometric configuration of an upper and lower chuck wall, inner panel wall and central panel, and having a unit depth to an outwardly concave countersink of at least about 0.215 inches.
Claims25
A metallic beverage can end adapted for interconnection to a beverage can body, comprising:
- a circular end wall adapted for interconnection to a side wall of a beverage can;
- a chuck wall integrally interconnected to said circular end wall and extending downwardly at an angle θ of at least about 8 degrees as measured from a vertical plane;
- an inner panel wall interconnected to said lower chuck wall and extending upwardly at an angle φ of between about 0 degrees and 15 degrees as from a measured substantially vertical plane;
- a countersink defined by an interconnection of a lower portion of said chuck wall and a lower portion of said inner panel wall and having a radius of curvature less than about 0.015 inches;
- and
- a central panel interconnected to an upper end of said inner panel wall and raised above a lowermost portion of said countersink at least about 0.085 inches.
3 more elements
A metallic beverage can end adapted for interconnection to a beverage can body, comprising:
- a circular end wall adapted for interconnection to a side wall of a beverage can;
- an upper chuck wall portion integrally interconnected to said circular end wall and extending downwardly at a chuck wall angle θ1 of at least about 25 degrees as measured from a vertical plane;
- a lower chuck wall portion integrally interconnected to said upper chuck wall portion and extending downwardly at a lower chuck wall angle θ2 of at least about 18 degrees, as measured from a substantially vertical plane;
- a countersink integrally interconnected to said lower chuck wall portion on a first end and a lower end of an inner panel wall on a second end, said inner panel wall extending upwardly at an angle φ1 of at least about 4 degrees;
- and
- a central panel interconnected to an upper end of said inner panel wall.
3 more elements
A metallic beverage can end, comprising:
- a circular end wall;
- an upper chuck wall dependent from an interior of said circular end wall at an upper chuck wall angle θ1, as measured from a substantially vertical plane;
- a lower chuck wall extending downwardly from said upper chuck wall at a lower chuck wall angle θ2 as measured from a substantially vertical plane;
- an outwardly concave countersink extending radially inwards from said lower chuck wall;
- a central panel supported by an inner panel wall of the countersink;
- and
- wherein the upper chuck wall angle θ1 is at least about 25 degrees and the lower chuck wall angle θ2 is at least about 18 degrees, and said outwardly concave countersink has a lowermost portion at least about 0.215 inches from an uppermost portion of said circular end wall.
4 more elements
A beverage can end adapted for interconnection to a can body, comprising:
- a circular end wall;
- an upper chuck wall integral to said circular end wall and extending downwardly at an upper chuck wall angle θ1 between about 25 and 35 degrees;
- a lower chuck wall extending downwardly from said upper chuck wall at a lower chuck wall angle of θ2 of between about 18 and 32 degrees;
- an inner panel wall extending upwardly from a lower portion of said lower chuck wall to define a countersink positioned therebetween having a radius no greater than about 0.015 inches and positioned at least about 0.215 inches from an upper most portion of said circular end wall;
- a central panel interconnected to an upper portion of said inner panel wall and elevated above a lowermost portion of said countersink at least about 0.090 inches.
2 more elements
Dependencies are inferred from the claim text.