Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With bending – folding – winding – or wrapping means
Patent
1979-12-10
1981-02-10
Simmons, David A.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With bending, folding, winding, or wrapping means
156 66, 156204, 156290, 15624415, 156500, B32B 3100
Patent
active
042499828
ABSTRACT:
Apparatus for making an integral extruded plastic bag, comprising means for forming a thin wall extruded flexible plastic web, and integrally on the plastic web longitudinally extending and laterally spaced complementary resiliently flexible interlocking fastener profiles having an imperforate gusset-forming web area therebetween, means for collapsably folding the gusset-forming web area into a gusset extending in one direction away from said profiles, means for folding portions of the plastic web into free terminal digitally manipulatable double thickness bag mouth pull flanges projecting to a suitable length in the opposite direction from said profiles, means for collapsing the remainder of the plastic web into bag side wall panels toward said gusset and to extend to a substantially greater length than the gusset for providing a substantial bag pouch into which the gusset projects only a limited distance, and means for securing the fastener profiles together into interlocking but releasable fastener relation.
REFERENCES:
patent: 3746215 (1973-07-01), Ausnit et al.
patent: 3780781 (1973-12-01), Uramoto
patent: 3839128 (1974-10-01), Arai
patent: 4191230 (1980-03-01), Ausnit
Minigrip Inc.
Simmons David A.
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