B - Operations – Transporting – 31 – B
Patent
B - Operations, Transporting
31
B
B31B 1/74 (2006.01) B31B 37/00 (2006.01) B65D 30/10 (2006.01)
Patent
CA 2396517
Provided herein is a process consisting of: preparing a folded leaf comprising a first main flap and a second main flap which overlap one another and a bottom edge joining the main flaps; tucking in the folded leaf at the bottom edge to form bellows including a first and a second base strip inserted between the main flaps; making short furrows at the bellows, which are incised and welded and are spaced from one another, turning up a base strip on a main flap to form triangular pockets at the short furrows; fixing the triangular pockets to the base strips; and separating each bag from the folded leaf.
Shapiro Cohen
Square Bottom Inc.
LandOfFree
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