B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/1159, 18/37
B29D 7/02 (1980.01) B29D 23/04 (1980.01)
Patent
CA 1079469
ABSTRACT A thin wall extruded flexible web Is provided with laterally spaced longitudinally extending complementary resiliently flexible interlocking fastener profiles having an imperforate gusset forming web area therebetween which Is collapsibly folded Into a gusset extending in one direction away from the profiles. Portions of the plastic web are folded into free terminal digitally manipulatable bag mouth pull flanges projecting to a suitable length In the opposite direction from the profiles, with the remainder of the plastic web being collapsed toward the gusset Into bag forming side wall panels and extending to a substantially greater length than the gusset for providing a substantial bag pouch into which the gusset projects only a limited extent, with the fastener profiles being then secured together into interlocking but releasable fastener relation. Several embodiments of the method are disclosed. Apparatus for practicing the method is disclosed.
311635
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