A reduced gauged crown for a container opening includes a corrugated panel portion such that the corrugation strengthens the crown material and allows less material to be used for the crown than would be used for an uncorrugated bottle cap.

A metal bottle-shaped container comprising a neck portion (5) defining an opening to the container, the neck portion extending into a neck finish (6) configured to receive a crown closure for sealing the opening, the neck finish comprising three distinct sections, a proximal section (6.P) extending from the neck portion of the container and connected thereto by a first bend (6.1), a distal section (6.D) comprising the free end of the neck finish and an intermediate section (6.1) extending between the proximal section and the distal section and connected thereto by respectively a second bend (6.2) and a third bend (6.3), characterized in that the proximal section is substantially planar and has a width of at least 0.5 mm measured between the first and second bends.

An apparatus includes a tool operable to releasably join a metallic end closure to a metallic container. In one embodiment, the tool is configured to form a thread in the closure and the container. The tool may optionally crimp the closure to the container. Once sealed, the container can be opened by rotating the closure in an opening direction. The closure can subsequently re-close the container by rotating the closure in a closing direction.

A steel sheet for crown cap having excellent formability from which a crown cap having an excellent pressure resistance can be produced without an expensive soft liner even if the steel sheet is subjected to sheet metal thinning, the steel sheet having: a chemical composition containing, in mass %, C: more than 0.006% and 0.012% or less, Si: 0.02% or less, Mn: 0.10% or more and 0.60% or less, P: 0.020% or less, S: 0.020% or less, Al: 0.01% or more and 0.07% or less, and N: 0.0080% or more and 0.0200% or less, with the balance being Fe and inevitable impurities; and a percentage of a region of more than 0% and less than 20% at a position of ½ of a sheet thickness, the region having a dislocation density of 1×10.sup.14 m.sup.−2 or less.

A steel sheet for crown cap having excellent formability from which a crown cap having an excellent pressure resistance can be produced without an expensive soft liner even if the steel sheet is subjected to sheet metal thinning, the steel sheet having: a chemical composition containing, in mass %, C: more than 0.006% and 0.012% or less, Si: 0.02% or less, Mn: 0.10% or more and 0.60% or less, P: 0.020% or less, S: 0.020% or less, Al: 0.01% or more and 0.07% or less, and N: 0.0080% or more and 0.0200% or less, with the balance being Fe and inevitable impurities; and a percentage of a region of more than 0% and less than 20% at a position of ½ of a sheet thickness, the region having a dislocation density of 1×10.sup.14 m.sup.−2 or less.

An apparatus includes a tool operable to releasably join a metallic end closure to a metallic container. In one embodiment, the tool is configured to form a thread in the closure and the container. The tool may optionally crimp the closure to the container. Once sealed, the container can be opened by rotating the closure in an opening direction. The closure can subsequently re-close the container by rotating the closure in a closing direction.

A cap for sealing a mouth of a crown finish or threaded crown finish glass bottle, the crown cap is formed by a circular wall, a curved wall perimetrical to the circular wall, and a closure skirt that descends radially downward and outward from the curved wall and formed by a plurality of interleaved protrusions and depressions, the curved wall has a radius of curvature from 1.5 mm (0.590551 in) to 1.9 mm (0.748031 in) and an arc less than 86°; the crown cap is formed from a circular sheet cutout with a diameter from 33.4949 mm (1.3187 in) to 35.5346 mm (1.399 in), resulting in a crown cap with an axial height less than the axial height of a crown cap from the state of the art.

A cap for sealing a mouth of a crown finish or threaded crown finish glass bottle, the crown cap is formed by a circular wall, a curved wall perimetrical to the circular wall, and a closure skirt that descends radially downward and outward from the curved wall and formed by a plurality of interleaved protrusions and depressions, the curved wall has a radius of curvature from 1.5 mm (0.590551 in) to 1.9 mm (0.748031 in) and an arc less than 86°; the crown cap is formed from a circular sheet cutout with a diameter from 33.4949 mm (1.3187 in) to 35.5346 mm (1.399 in), resulting in a crown cap with an axial height less than the axial height of a crown cap from the state of the art.

A reusable single-piece tamper-evident cover for protecting a drinking area of a beverage can or bottle before and after removal of the cover from the can or bottle. The cover includes: a cover top, a clasp ring positioned below and contiguous with the cover top, and a skirt being positioned below and contiguous with the ring. The ring includes at least one tamper-evident seal that includes two tear lines. The tear lines do not extend to the inner cover surface. Tearing along the tear lines results in tampering the seal, and does not tear the inner cover surface. An entirety of the inner cover surface is able to be continuous when the skirt extends along an entirety of the ring, as well as after removal of the cover from the can or bottle.

A reusable single-piece tamper-evident cover for protecting a drinking area of a beverage can or bottle before and after removal of the cover from the can or bottle. The cover includes: a cover top, a clasp ring positioned below and contiguous with the cover top, and a skirt being positioned below and contiguous with the ring. The ring includes at least one tamper-evident seal that includes two tear lines. The tear lines do not extend to the inner cover surface. Tearing along the tear lines results in tampering the seal, and does not tear the inner cover surface. An entirety of the inner cover surface is able to be continuous when the skirt extends along an entirety of the ring, as well as after removal of the cover from the can or bottle.