B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
156/27, 190/84
B65D 81/20 (2006.01) B65B 9/00 (2006.01) B65D 8/22 (2006.01) B65D 75/48 (2006.01) B65D 75/58 (2006.01)
Patent
CA 1141311
ABSTRACT OF THE DISCLOSURE The invention relates to a sheet metal container adapt- ed so that it can withstand an internal pressure. The container comprises two combined shell-shaped cavities, compression-mould- ed from the same web which cavities are brought together as the web is doubled along pre-impressed folding lines in two steps, namely a first step wherein the longitudinal edges of the web are joined together to form a tube of an elongated, substantially triangular cross-section, and a second step when the tube formed, after the contents have been introduced, is pressed flat and is sealed around the shell-shaped cavities. Finally the web is cut or punched around the hollow bodies formed by the shell-shaped cavities to form a flange, closed in itself, which flange is folded down or beaded.
360113
Marks & Clerk
Tetra Pak International Ab
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