B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 30/08 (2006.01) B29C 65/02 (2006.01) B31B 19/26 (2006.01) B31B 37/00 (2006.01)
Patent
CA 2453331
A plastic bag including a pair of side gussets 1 Is arranged to be free of leakage from one end portion of each of the side gussets. Each of the side gussets has opposite end portions one of which is folded obliquely along a folding line as it is folded into halves so that a triangular flap 13 can be formed by the end portion to be shaped into a triangle having a base formed by the folding fine. The triangle has an apex formed by an intersection between one of the opposite end edges and the folded inner edge of each of he side gussets. The panels 2, the side gussets and the triangular flaps are heat sealed respectively along the opposite side edges 3 of panels.
La présente invention a trait à un sac en plastique présentant des éléments de soufflet latéral (1), agencé de manière à ne produire aucune formation de fuite dans l'extrémité de chaque élément de soufflet latéral. Une extrémité de chaque élément de soufflet latéral, à deux plis, est pliée en oblique. La ligne de pliage est constituée par le côté inférieur d'un triangle dont le sommet se trouve à un point d'intersection entre un bord d'extrémité d'un côté d'un élément de soufflet latéral et le bord interne à double pli. Ainsi, les volets triangulaires (13) des éléments de soufflet latéral sont formés, et des éléments de corps tubulaire (2), les éléments de soufflet latéral, et les volets triangulaires sont thermosoudés le long des bords opposés des éléments de corps tubulaire.
G. Ronald Bell & Associates
Totani Corporation
LandOfFree
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