Expanded cans

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 1/16 (2006.01)

Patent

CA 2318797

Metal can blanks comprising a cylindrical side wall are expanded by any known method so that the side wall of the resultant can includes a regular pattern (2) of individual pattern elements. In one example, the pattern elements are diamond in outline and are formed over a central region of the can side wall by about 2.25 % expansion. Further expanded margins (3, 4) are provided above and below this pattern. The pattern elements are arranged in rows and columns so that the pattern comprises at least two rows and at least two columns.

L'invention concerne des ébauches de boîtes métalliques comprenant une paroi latérale cylindrique, lesquelles ébauches sont expansées selon un procédé connu quelconque de manière que la paroi latérale de la boîte obtenue puisse comporter un motif (2) régulier constitué d'éléments de motif individuels. Dans un mode de réalisation, les éléments de motif se présentent sous la forme de losanges et ils sont formés sur une région centrale de la paroi latérale de la boîte par une expansion de 2,25 % environ. D'autres zones (3, 4) expansées se trouvent au-dessus et au-dessous du motif. Les éléments de motif sont disposés en lignes et en colonnes de manière que le motif comprenne au moins deux lignes et au moins deux colonnes.

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