B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
220/10, 93/33, 2
B65B 43/10 (2006.01) B31B 29/00 (2006.01) B65B 9/20 (2006.01) B65D 30/00 (2006.01)
Patent
CA 1245193
ABSTRACT Bottom-fold bags, made of endless tubular material, which can be made of endless flat material and having a substantially rectangular standing-surface, together with a method and apparatus for producing and filling such bags are disclosed. Two lateral, substantially triangular bottom-flaps, in the vicinity of which the tubular material is in three layers, are produced. The tubular material is folded-in from the sides of the bag being formed and a bottom longitudinal seam is formed by pressing the tubular material together and connecting together the layers of tubular material thus caused to bear upon one another. At least the two layers of the bottom-flaps facing away from the bottom-surface of the bag are united longitudinally. At least one connecting seam, arranged near the lateral edge of the bag, and at least one connecting seam, arranged near the apex of each triangular bottom-flap are provided, substantially at right angles to the bottom longitudinal seam. At least one of the connecting seams is of linear design and is divided in its longitudinal extension. The bags thus formed are then separated and filled with a freely flowing product. The bags are self-supporting and stand upright when filled.
475172
Effem Gmbh
Gowling Lafleur Henderson Llp
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