A Method for manufacturing metal sealing caps comprising a sequence of steps is provided herein.

A Method for manufacturing metal sealing caps comprising a sequence of steps is provided herein.

A method for forming a deep draw closure cap includes draw forming a first cup from a planar sheet of a metal material defining a base thickness. The first cup comprises a first cup base, a first cup wall, and an open end. A first redrawing of the first cup is performed to form a first redrawn cup including a first redrawn cup base, a first redrawn cup wall, and an open end. The first redrawn cup is passed through an ironing die to reduce a thickness of the first redrawn cup wall adjacent to the open end.

An apparatus and methods of forming a metallic closure for a metallic bottle are provided. The present disclosure provides a pre-formed metallic closure and apparatus and methods of forming the metallic closure. The metallic closure can be reformed with a peripheral channel before the metallic closure is positioned on a metallic bottle. An inner tool and an outer tool can form the channel in one operation. Optionally, a thread can be formed on a metallic closure prior to use of the metallic closure to seal a metallic bottle. A capping apparatus of the present disclosure uses less force to seal a metallic bottle with a metallic closure of the present disclosure compared to the force required with a prior art ROPP closure. Accordingly, a metallic closure of the present disclosure can seal a metallic bottle formed of less material (such as by being thinner) than prior art metallic bottles.

An apparatus and methods of forming a metallic closure for a metallic bottle are provided. The present disclosure provides a pre-formed metallic closure and apparatus and methods of forming the metallic closure. The metallic closure can be reformed with a peripheral channel before the metallic closure is positioned on a metallic bottle. An inner tool and an outer tool can form the channel in one operation. Optionally, a thread can be formed on a metallic closure prior to use of the metallic closure to seal a metallic bottle. A capping apparatus of the present disclosure uses less force to seal a metallic bottle with a metallic closure of the present disclosure compared to the force required with a prior art ROPP closure. Accordingly, a metallic closure of the present disclosure can seal a metallic bottle formed of less material (such as by being thinner) than prior art metallic bottles.

An apparatus and methods of forming a metallic closure for a metallic bottle are provided. The present disclosure provides a pre-formed metallic closure and apparatus and methods of forming the metallic closure. The metallic closure can be reformed with a peripheral channel before the metallic closure is positioned on a metallic bottle. An inner tool and an outer tool can form the channel in one operation. Optionally, a thread can be formed on a metallic closure prior to use of the metallic closure to seal a metallic bottle. A capping apparatus of the present disclosure uses less force to seal a metallic bottle with a metallic closure of the present disclosure compared to the force required with a prior art ROPP closure. Accordingly, a metallic closure of the present disclosure can seal a metallic bottle formed of less material (such as by being thinner) than prior art metallic bottles.

An apparatus and methods of forming a metallic closure for a metallic bottle are provided. The present disclosure provides a pre-formed metallic closure and apparatus and methods of forming the metallic closure. The metallic closure can be reformed with a peripheral channel before the metallic closure is positioned on a metallic bottle. An inner tool and an outer tool can form the channel in one operation. Optionally, a thread can be formed on a metallic closure prior to use of the metallic closure to seal a metallic bottle. A capping apparatus of the present disclosure uses less force to seal a metallic bottle with a metallic closure of the present disclosure compared to the force required with a prior art ROPP closure. Accordingly, a metallic closure of the present disclosure can seal a metallic bottle formed of less material (such as by being thinner) than prior art metallic bottles.

The present invention relates to a press-type composite internally and externally threaded portion forming system. In this case, the press-type composite internally and externally threaded portion forming system includes an expansion-type collet core unit (10) and a contraction-type collet core unit (20) as its principal components so that internally and externally threaded portions are formed by means of a press method in a composite manner in such a way that the expansion forming force of the expansion-type collet core unit (10) and the contraction forming force of the contraction-type collet core unit (20) simultaneously act on the inner and outer circumferential surfaces of a workpiece in opposite directions.

The present invention relates to a press-type composite internally and externally threaded portion forming system. In this case, the press-type composite internally and externally threaded portion forming system includes an expansion-type collet core unit (10) and a contraction-type collet core unit (20) as its principal components so that internally and externally threaded portions are formed by means of a press method in a composite manner in such a way that the expansion forming force of the expansion-type collet core unit (10) and the contraction forming force of the contraction-type collet core unit (20) simultaneously act on the inner and outer circumferential surfaces of a workpiece in opposite directions.

A bottle-shaped can in which a cap can be mounted on a neck portion without damaging slits and bridges. An annular bead comprises a diametrically largest portion, an upper inclined surface, and a lower inclined surface. An angle of inclination of the upper inclined surface is narrower than that of the lower inclined surface. A thread ridge comprises an incomplete thread portion in which a groove depth is shallower than an average groove depth of the thread ridge, and the incomplete thread portion is formed at one end of the thread ridge on the upper inclined surface at least partially. An angle of inclination of a lower wall of the thread ridge is greater than that of the upper inclined surface so that a protruding corner is formed. The slits and the bridges are situated at a level lower than the protruding corner.