B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
220/10
B65D 30/18 (2006.01) B31B 19/64 (2006.01) B31B 27/60 (2006.01) B31B 37/00 (2006.01) B65D 30/20 (2006.01)
Patent
CA 1157825
Abstract of the Disclosure A web comprises two layers of foil in the form of a flattened tube and divided transversely into a plurality of sections. Each of the sections when separated from the web and opened out forms a plastic bag of rectangular parallelopepidal shape. The web has along each of its longitudinal edges a gusset folded inwardly so as to lie between said two layers, each gusset defining an inner gusset fold and two outer gusset folds inter- connected by respective gusset parts. Each section has a trans- verse bottom seal at one end thereof connecting the two layers together at least in the region between the inner folds of the gussets at opposite sides of the web. First gusset seals at said one end of each section extend obliquely towards the one end from each outer gusset fold to the inner gusset fold at each side of the web, and each first gusset seal connects one gusset part to the web layer in contact therewith. The first gusset seals or extensions thereof intersect the transverse bottom seal substan- tially in the region near the intersection of the transverse bottom edge with the inner gusset folds. The transverse bottom seal is arranged to close the bag bottom either alone or in co- operation with the first gusset seals, and second gusset seals at said other end of each section extend obliquely inwardly and towards the other end from each outer gusset fold to the inner gusset fold at each side of the web. Each second gusset seal connects one gusset part to the web layer in contact therewith, and further gusset seals extend from the free inner ends of the second gusset seals or near thereto towards the outer web and connect the gusset parts to the respective web layers in contact therewith. A transverse incision is formed in one of the web layers at the other end of each section to allow each section to be filled and formed into a bag while on the web.
288716
Marks & Clerk
Wavin B.v.
LandOfFree
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