Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With cutting – punching – piercing – severing – or tearing
Patent
1986-12-09
1988-04-05
Spruill, Robert L.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With cutting, punching, piercing, severing, or tearing
156519, 53137, 53138R, 74 68, 493215, B32B 3100
Patent
active
047356740
ABSTRACT:
Apparatus for making a plastic film bag having bag mouth lips projecting beyond a heat-seal band closing the bag mouth and providing a stiffening patch bonded to the interior or exterior of a bag mouth lip between the heat-seal band and the bag mouth end for reclosing the bag mouth after the heat-seal band has been opened. For reclosing the bag mouth, the apparatus applies stiffening patches to a web of sheet material for making bags at the time that the bags are formed and filled by clipping from a strip of patch-making material patch pieces having pressure-sensitive adhesive on one side. The apparatus transfers such patch pieces from a rotary shear onto the bag-making material by an orbiting transfer member having a suction pickup to pick up a patch piece and blowing means for subsequently detaching the patch piece from the transfer member and depositing it onto the web of bag-making material.
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patent: 4650536 (1987-03-01), Ceraso
Beach Robert W.
Brown Ward
Formost Packaging Machines, Inc.
Spruill Robert L.
Weihrouch Steven P.
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