A beverage can end has an arcuate panel wall and a chuck wall having a curved transition wall portion. Configuration of the seaming panel and panel wall is provided.

A method and apparatus for forming a can end in a forming press including positioning a sheet of material between an upper punch assembly and a fixed base assembly; cutting a can end blank from the sheet of material; clamping a peripheral portion of the can end blank; moving the upper punch assembly to clamp a central portion of the can end blank between an upper panel punch and a lower panel punch to define a central panel section positioned below an annular inner bead die located adjacent to the lower panel punch on the fixed base assembly; and extending the upper punch assembly to form an initial annular countersink radius next to the peripheral portion of the can end blank, with a substantially undeformed intermediate area extending between the initial annular countersink radius and the annular inner bead die.

A can end including a center panel, an annular portion disposed about the center panel, a standard chuck wall disposed about the annular portion, and a curl extending radially outwardly from the standard chuck wall. The annular portion includes an enhanced annular countersink.

A drawn aluminum can shell has a peripheral crown which is double-seamed with an end portion of an aluminum can body to provide a can end having a generally flat center panel connected by an inclined curved or straight panel wall to an inclined inner wall of an annular U-shaped countersink. The countersink has an outer wall which connects with an inclined lower wall portion of a chuck wall at a junction below the center panel, and the chuck wall has a curved or inclined upper wall portion which connects with an inner wall of the crown. The chuck wall also has an intermediate wall portion forming a break, and the inner bottom width of the countersink is less than the radial width of the panel wall. The inclined upper wall portion of the chuck wall extends at an angle greater than the angle of the inclined lower wall portion of the chuck wall.

A drawn aluminum can shell has a peripheral crown which is double-seamed with an end portion of an aluminum can body to provide a can end having a generally flat center panel connected by an inclined curved or straight panel wall to an inner wall of an annular U-shaped countersink. The countersink has an outer wall which connects with a lower wall portion of a chuck wall, and the chuck wall has an upper wall portion which connects with an inner wall of the crown. The chuck wall also has an intermediate wall portion forming a break, and the inner bottom width of the countersink is less than the radial width of the panel wall.

A can closure includes a body with a center panel and a peripheral curl. The can closure body has one of a reduced panel depth, a very reduced panel depth, an extremely reduced panel depth, or a beverage can reduced panel depth.

A tamper evident feature for a container is provided. The tamper evident feature may include a locking tab connected to a wall panel of the container and a receiving slot provided on a cover panel of the container. The locking tab may include a locking end portion with an outer terminal edge and a slit extending laterally across the locking tab. The slit may provide a cut edge extending partially across an intermediate portion of the locking tab and allow for a tab end portion to bend relative to the remainder of the locking tab. The receiving slot may include a receiving slit defined into the cover panel of the container and configured to receive the locking end portion of the locking tab. The receiving slit may provide a receiving edge that engages with the cut edge of the locking tab to secure the cover panel in a closed position.

A tamper evident feature for a container is provided. The tamper evident feature may include a locking tab connected to a wall panel or cover panel of the container and a receiving slot provided on the opposing cover panel or wall panel of the container. The locking tab may include an outer terminal edge and a slit extending laterally across the locking tab. The slit may provide a cut edge extending partially across an intermediate portion of the locking tab and allow for a tab end portion to bend relative to the remainder of the locking tab. The receiving slot may include a receiving slit defined into the cover panel of the container and configured to receive the locking tab. The receiving slit may provide a receiving edge that engages with the cut edge of the locking tab to secure the cover panel in a closed position.

A thinned metal can end having a non-uniform thickness profile is provided. The can end has a central panel having at least a first thickness, a middle portion having at least a second thickness greater than the first thickness, and an end portion having at least a third thickness greater than the first and second thicknesses. The can end is configured to be joined to a can wall by a double seam.

A resin-coated metal sheet for can lids includes a metal sheet coated with thermoplastic resin films on both surfaces and formed into a can lid. A thermoplastic resin film A based on polybutylene terephthalate (PBT) and polyethylene terephthalate (PET) is heat-fused on a surface of the metal sheet serving as an exterior surface of the can lid, and a thermoplastic resin film B based on polyethylene terephthalate (PET) is heat-fused on a surface of the metal sheet serving as an interior surface of the can lid. A composition ratio (wt %) of PBT/PET in the thermoplastic resin film A on the exterior surface is (PBT/PET)=(40/60) to (80/20), and the thermoplastic resin film B on the interior surface includes 95 mol % or more of PET.