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US 8,011,527 B2Granted
Can end with countersink
AssigneeRexam Beverage Can Company
InventorsRandall G. Forrest, Timothy L. Turner
Life of this patent
Estimating the term…
Abstract
A can end for a two-piece beverage can is described. The can end has a center panel positioned about a vertical center axis. The center panel has a stay-on tab opening assembly located on a public side. A reinforcing bead surrounds the center panel. The reinforcing bead has an inner curved portion having a radius of curvature located radially inwardly from an outer curved portion having a radius of curvature. The radius of curvature of the outer curved portion is greater than the radius of curvature of the inner curved portion.
Claims4
A can end for a two-piece container, the can end comprising:
- a center panel positioned about a vertical center axis, the center panel comprising a peripheral edge including a panel radius, the panel radius comprising a center of curvature below a product side of the center panel;
- a countersink comprising an inner wall joined to the panel radius and extending downwardly relative thereto, a first curved portion having a first end joined to the inner wall, a short wall joined to a second end of the first curved portion and extending radially outwardly and substantially horizontally from the first curved portion, a second curved portion joined to the short wall and extending upwardly and radially outwardly therefrom, wherein the first curved portion has a first radius of curvature, and the second curved portion has a second radius of curvature, the second radius of curvature being greater than the first radius of curvature wherein the second radius of curvature has a center point located radially inwardly of a center point of the first radius of curvature;
- a wall extending upwardly from the countersink;
- and
- a curl joined to the wall.
2 more elements
Dependencies are inferred from the claim text.