A preform of a can includes: a dome part being concave into the bottomed cylindrical body; and an annular leg part projecting in a direction opposite to a direction in which the dome part is concave, the dome part and the annular part being molded to form the preform of the can, and an inner surface of the dome part being pressed to mold a molded can. A maximum height of the preform of the can from a ground plane to the dome part is greater than a maximum height of the molded can from a ground plane to the dome part. In a vertical cross-sectional view, a length of an inner peripheral section of the leg part connecting between a ground point of the leg part and the dome part of the preform of the can is greater than a length of a curved end molded around the dome part of the molded can.

A polyester-resin-coated seamless can including a reduced diameter portion obtained by neck processing within a distance of 0% to 15% from a can body uppermost portion with respect to a total height of the can from the can body uppermost portion to a can bottom of the can. A ratio Im/Iu is 1.0 or more, where Iu (cps/μm) is calculated by dividing a maximum peak intensity in a range satisfying 15°≤2θ≤19° of an outer-surface coating in a maximum reduced diameter portion of the reduced diameter portion by a thickness of the coating at the measurement site, and Im (cps/μm) is calculated by dividing a maximum peak intensity in a range satisfying 15°≤2θ≤19° of outer-surface coating at a measurement site within a distance of 45% to 60% from the can body uppermost portion by a thickness of the outer-surface coating at the measurement site.

A device for inhibiting rotational motion of an article to be processed comprises a pressure plate assembly including a generally ring-shaped guide assembly. The guide assembly has and at least two guide pins extending from a first side in a transverse direction. The guide assembly further includes at least two resilient devices positioned over a respective one of the at least two guide pins and a container guide having an aperture for receiving an open end of a container moving in a first direction and for aligning the open end with a processing device. The container guide is positioned adjacent to the first side of the pressure plate assembly. At least two resilient devices are configured to be compressed in response to movement of the container guide in a first direction and are configured to decompress in response to movement of the container guide in a second, generally opposite direction.

A bottle can made of aluminum alloy has a base portion; a cylindrical body portion connected to an upper end of the base portion; a reduced diameter portion where a diameter reduces from an upper end of the cylindrical body portion to an upper side; a neck portion provided at an upper side of the reduced diameter portion; and a mouth portion having a male thread portion and a bulge portion provided at an upper side of the neck portion. The reduced diameter portion has: a convex curved portion continuing to the upper end of the cylindrical body portion; a concave curved portion continuing to an upper end of the convex curved portion; a lower convex portion continuing to an upper end of the concave curved portion; and an upper concave portion continuing an upper end of the lower convex portion and a lower end of the neck portion.

An apparatus and method of making and applying threaded twist-off neck finishes for metal containers is provided. More specifically, the present invention relations to apparatus and methods used to form metallic bottles with threaded necks adapted to receive selectively removable threaded closures. The threaded neck may be formed by interconnecting a threaded outsert to a metallic bottle. Alternatively, the threaded neck may be formed as an integral portion of the neck of the bottle.

A quick-change vacuum starwheel assembly including at least one of a quick-change height adjustment assembly or a quick-change vacuum starwheel mounting assembly.

A quick-change die assembly for a necker machine includes an outer die mounting, an outer die, an outer die quick-release coupling, an inner die mounting, an inner die assembly, and an inner die quick-release coupling. The outer die is coupled to the outer die mounting by the outer die quick-release coupling. The inner die assembly is coupled to the inner die mounting by the inner die quick-release coupling.

A metal cup and method of forming the same is provided. Metal cups of the present disclosure comprise a plurality of thin, straight-walled sections and a tapered profile. A domed portion is provided in the bottom of the cup. The cup may comprise a disposable cup, a reusable cup, or a recyclable cup.

A drive assembly for a necker machine includes a plurality of motors, each motor including an output shaft, a plurality of drive wheel assemblies, each drive wheel assembly operatively coupled to an associated necker machine drive shaft, and a number of timing/drive belts operatively coupled to each drive wheel assembly.

The principles of the present invention further provide both a shaped metal container and its preforms that exhibit a rounded grain structure characteristic created by an annealing process and a method for making a shaped metal container. The process of making said metal container results in a quicker process time and uses less metals (at least 10% metal weight savings), thus allowing for a decrease in the costs of making such shaped metal containers. A shaped metal container may include work hardened rolled sheet-metal defining a sidewall, an opening, and a base, where at least one section along the sidewall has grains with an average aspect ratio less than about 4 to 1.