A can seaming apparatus including a frame, a can handling assembly, a can driving assembly and a seaming assembly. The can seaming apparatus is configured to seal a lid to a can through a double seam can seal. The can is positioned and clamped between an upper and a lower chuck. The can driving assembly spins the can and the upper and lower chucks about an axis. The seaming assembly includes two rollers which can selectively be directed to engage the can to form the necessary crimping operations.

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 expansion tool for expanding an article. The expansion tool includes a lead-in portion extending outwardly from a first end of the expansion tool and a first pilot portion extending from the lead-in portion. The first pilot portion has a first diameter. The expansion tool further includes a second pilot portion being generally parallel with the first pilot portion. The second pilot portion has a second diameter larger than the first diameter. The expansion tool further includes a forming portion bridging the first pilot portion and the second pilot portion. The forming portion is generally sloped. The expansion tool further includes an expansion portion extending from the second pilot portion toward a second end of the expansion tool. The expansion portion has a third diameter larger than the second diameter.

Various embodiments of the present disclosure are directed to seaming assembly for seaming a can lid onto a can body. In one example embodiment, a seaming assembly includes a chuck; and a knockout pad that is movable relative to said chuck in an axial direction of said chuck. The knockout pad includes a fastening element, and a holding element in a spring-loaded manner relative to the fastening element such that contact with the can lid is effected and established in a spring-loaded region.

A method for fabricating a double layer cup-shaped part may include shaping a first material into a hollow cylinder, mounting the hollow cylinder on a draw punch, where the draw punch may include an upper punch portion with a first diameter and a lower punch portion with a second smaller diameter. Mounting the hollow cylinder on the draw punch may include tightly fitting the hollow cylinder around the lower punch portion. The method may further include forming the double layer cup-shaped part by drawing a blank material through a draw die by placing the blank material over an upper opening of the draw die, and pressing the draw punch over the blank material. The first material may form an inner layer of the double layer cup-shaped part and the blank material may form an outer cup-shaped layer of the double layer cup-shaped part.

A method for fabricating a double layer cup-shaped part may include shaping a first material into a hollow cylinder, mounting the hollow cylinder on a draw punch, where the draw punch may include an upper punch portion with a first diameter and a lower punch portion with a second smaller diameter. Mounting the hollow cylinder on the draw punch may include tightly fitting the hollow cylinder around the lower punch portion. The method may further include forming the double layer cup-shaped part by drawing a blank material through a draw die by placing the blank material over an upper opening of the draw die, and pressing the draw punch over the blank material. The first material may form an inner layer of the double layer cup-shaped part and the blank material may form an outer cup-shaped layer of the double layer cup-shaped part.

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 clamp ring assembly for use in a can bottom forming assembly comprising a clamp ring retainer, a clamp ring having a biasing assembly and an inner dome die. The clamp ring floats with respect to the clamp ring retainer to accommodate off center contact by the punch and to center the punch at the end of the ram stroke, A slightly conically shaped inner dome die structure or dome plug may be provided to further center the punch at the end of the ram stroke.

A clamp ring assembly for use in a can bottom forming assembly comprising a clamp ring retainer, a clamp ring having a biasing assembly and an inner dome die. The clamp ring floats with respect to the clamp ring retainer to accommodate off center contact by the punch and to center the punch at the end of the ram stroke, A slightly conically shaped inner dome die structure or dome plug may be provided to further center the punch at the end of the ram stroke.

A cam follower assembly for a can bodymaker includes a slider structured to be coupled to the proximal end of a ram body of the can bodymaker; and a plurality of cam follower members rotatably coupled to the slider. The cam follower members are structured to be operatively coupled to a cam of a ram drive assembly.