Patent ID: 8931660
Filing Date: 2015-01-13
Classification: B21D,B65D

Abstract:
1. A one-piece metallic end closure adapted for double seaming to a container, comprising: a peripheral curl having a first end and a second end, said first end adapted for interconnection to a neck of the container; a horizontal circular center panel with a vertical center axis; an inclined linear panel wall with a substantially uniform thickness interconnected on an upper end to said horizontal circular center panel at a first radius of curvature, said inclined linear panel wall having an angle between 30° and 60° relative to said center axis; a countersink comprising an inner wall portion, an outer wall portion, and a generally U-shaped cross-sectional configuration, said inner wall portion interconnected to said inclined linear panel wall at a second radius of curvature; and a chuck wall comprising an inclined lower wall portion interconnected to said countersink outer wall portion, and an upper wall portion interconnected to said second end of said peripheral curl at a junction, said junction formed from a third radius of curvature and a fourth radius of curvature oriented in opposite directions and positioned above a lowermost portion of said countersink a distance of at least about 0.133 inches.