Patent ID: 8597168
Filing Date: 2013-12-03
Classification: B31B,B65D

Abstract:
1. A method of making a side-gusset bag, the method comprising the steps of: forming in a longitudinally extending bag film at least two longitudinally extending and transversely spaced slits; supplying two handles having middle sections and two ends and inserting the ends of each of the handles transversely into a respective one of the slits such that the middle sections of the tubes extend longitudinally; forming and heat sealing the film into a tube with two superposed and longitudinally extending face panels and two gussets folded transversely between and joined to longitudinally extending side edges of the face panels, with the slits lying generally at the side edges flanking one of the side gussets and the middle sections of the handles lying generally atop one another outside the tube; attaching the ends of the handles to an inner face of the bag film; and longitudinally welding along each of the side edges to seal the slits around the handle ends.