Abstract: A lightweight, crimp-type crown cap for application to a glass beverage bottle, comprises a shell formed of a material comprising steel tinplate. The shell includes a round panel having an upper surface, a lower surface and a peripheral edge. A skirt depends downwardly from the peripheral edge of the panel, the skirt having fewer than 21 corrugations, wherein the corrugations are adapted to be crimped to affix the crown cap to a rim of a bottle opening. A circular groove is formed in the panel, defining a downwardly concave portion on the upper surface of the panel and a corresponding downwardly convex portion on the lower surface of the panel, and the circular groove is arranged to align with the rim of the bottle. A liner is disposed on the lower surface of the panel.

Abstract: The “Crown type eccentric multi die press for manufacturing reinforced crown caps and embossed crown caps” consists of a group of parts, most of them mobile and concentric, whose main parts—forming punches—when activated by the press, give form to the reinforced crown caps and/or to the embossed crown caps, in general.

Abstract: The invention “Reinforced Crown Cap” consists of a round plate-type piece with a peripheral radial crimpling allowing for its marginal bending on the neck of a container to be sealed. A Structural Reinforcement is applied on the round plan by deforming steel in the form of high or low relief crimpling with a radial symmetry with no compromise of basic features of Crown Cap which is bottle sealing.