Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1993-12-20
1995-04-11
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156251, 156289, 156290, 156300, 156303, 1563066, 156324, 446224, B32B 3110
Patent
active
054054796
ABSTRACT:
An improved method for inserting valves between the front and back panels of inflatable bodies, such as novelty balloons or air-inflated dunnage bags, is disclosed. The method includes the steps of conveying an upper web through an upper roller assembly and conveying a lower web through a lower roller assembly positioned adjacent to and below, and pivotal relative to, the upper roller assembly. The valve is then inserted between the top and bottom webs as they pass through the roller assemblies and then the roller assemblies are pivotally clamped together to bring the top and bottom webs together and frictionally engage the valve between the webs. The webs are then conveyed, with the valve clamped therebetween, to a downstream die station without any attachment of the valve to either of the webs prior to reaching the die station. At the die station, the perimeter of the inflatable body shape is heat sealed into the webs which simultaneously heat seals the valve to both of the webs.
REFERENCES:
patent: 2713746 (1955-07-01), Haugh
patent: 3230663 (1966-01-01), Shabram
patent: 4708167 (1987-11-01), Koyanagi
patent: 4917646 (1990-04-01), Kieves
patent: 4983138 (1991-01-01), McGrath
patent: 5248275 (1993-09-01), McGrath et al.
Ball Michael W.
CTI Industries Corporation
Lorin Francis J.
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