Fluid sprinkling – spraying – and diffusing – With system fluid relief or return to supply
Patent
1986-03-20
1987-08-18
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
With system fluid relief or return to supply
2395535, 239556, 239562, 239565, 239566, 239568, 118315, 118325, 118411, 118419, 137884, B05B 116, B05C 500
Patent
active
046871373
ABSTRACT:
An adhesive dispensing apparatus for applying continuous, parallel adhesive beads onto the center portion of a substrate and intermittent, parallel adhesive beads on the outer portions of a substrate, particularly the plastic backing sheet of a disposable diaper. The apparatus includes a slot nozzle, divided into two center sections and two end sections, which is formed with flow passageways for each section having a coat hanger profile including a plurality of spaced, discharge orifices to form the parallel beads. A valving arrangement including solenoid-operated center dispensing valves for each center section of the nozzle, and solenoid-operated dispensing and recirculation valve pairs for each end section of the nozzle, controls the flow of adhesive to the nozzle. The center dispensing valves are continuously opened during an operating run to apply continuous adhesive beads on the center portion of the substrate, and the outer dispensing valves are opened and closed intermittently to form gaps on the substrate without adhesive where the leg holes of the diaper are cut. When the outer dispensing valves are closed, the recirculation valves are simultaneously opened to maintain constant adhesive flow to the center dispensing valves.
REFERENCES:
patent: 2726632 (1955-12-01), Asbeck et al.
patent: 3184811 (1965-05-01), Bennett et al.
patent: 3420208 (1969-01-01), Guthrie
patent: 3596432 (1971-08-01), Straub et al.
patent: 4073408 (1978-02-01), Hartwig
patent: 4096973 (1978-06-01), Checko
patent: 4157149 (1979-06-01), Moen
patent: 4200207 (1980-04-01), Akers et al.
patent: 4274586 (1981-06-01), Hill
patent: 4557217 (1985-12-01), Zingg
Polymer Engineering & Science, Y. Matsubara, "Residence Time Distribution of Polymer Melts in the Linearly Tapered Coat-Hanger Die", Jan. 1983, vol. 23, No. 1, pp. 17-19.
Boger Bentley J.
Petrecca Peter J.
Jones Mary Beth O.
Kashnikow Andres
Nordson Corporation
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