B - Operations – Transporting – 31 – B
Patent
B - Operations, Transporting
31
B
93/12, 220/12
B31B 41/60 (2006.01) B31B 19/90 (2006.01) B65D 75/68 (2006.01)
Patent
CA 1221340
Abstract of the Disclosure A pinch bottom open mouth ("PBOM") hag having a pinch bottom flap folded over upon and adhered to one wall of the bag, with a tab for tearing the flap open inserted at its inner end between the walls of the bag, folded to overlie the flap and the outside of the other wall and releasably adhered to the other wall, and a method of and apparatus for manufac- turing the bags with the tabs from bag tubes wherein the tubes are continuously fed forward, one after another, tabs are ap- plied to the tubes as the tubes travel forward and folded to overlie said other wall before the pinch closure flap is folded over, and wherein each tab is inserted between the walls of a tube by bringing the tab into a position overlap- ping said one wall and separating said one wall from the other to the point where the end of the tab slips off said one wall and becomes disposed between the walls.
439549
Jacobson Roger K.
Munson Ronald W.
Bemis Company Inc.
Smart & Biggar
LandOfFree
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