MUMBAI, India, Nov. 21 -- Intellectual Property India has published a patent application (202517098822 A) filed by N. V. Nutricia, Zoetermeer, Netherlands, on Oct. 13, for 'method for expanding a cylindrical metallic precursor in the manufacture of a three-piece can and shaping mandrel for expanding a cylindrical metallic precursor.'
Inventor(s) include In 'T Anker, Arjan.
The application for the patent was published on Nov. 21, under issue no. 47/2025.
According to the abstract released by the Intellectual Property India: "A method is described for expanding a cylindrical metallic precursor in the manufacture of a three-piece can. The method comprises the steps of: arranging the precursor, having an initial diameter, around a shaping mandrel, the shaping mandrel having a plurality of longitudinally extending segments disposed radially about a longitudinal axis of the shaping mandrel, the segments having arcuate surfaces for engaging an inner surface of the precursor wall; actuating, in a first step, a first subgroup of the plurality of segments to expand outwards to engage with the inner surface of the precursor wall and expand at least a portion of it to a first diameter that is larger than the initial diameter of the precursor; and actuating, in a second step, a second subgroup of the plurality of segments to expand outwards and also engage with the inner surface of the precursor wall whereby the second subgroup expands at least a portion of the precursor to a second diameter that is larger than the first diameter. The method allows a greater degree of expansion of the wall of a cylindrical metallic container, whereby greater variations in diameter can be achieved between recessed portions and the remainder of the wall."
The patent application was internationally filed on Apr. 22, 2024, under International application No.PCT/EP2024/060954.
Disclaimer: Curated by HT Syndication.
