B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
32/60
B05B 7/16 (2006.01) B05B 7/06 (2006.01) B05B 7/08 (2006.01) B05C 5/02 (2006.01)
Patent
CA 1316343
Nozzle Attachment For An Adhesive Spray Gun Abstract of the Disclosure An apparatus for spraying heated hot melt adhesive in elongated strands or fibers in a con- trolled, spiral pattern upon a substrate comprises a spray sun having a nozzle formed with an adhesive delivery passageway and an air delivery passageway both of which terminate at the base of the nozzle. A nozzle attachment in the form of a one-piece annular plate is mounted to the base of the nozzle by a cap. The annular plate is formed with a throughbore which receives hot melt adhesive from the adhesive delivery passageway and ejects an adhesive bead through a nozzle tip formed on the outer side of the plate opposite the nozzle. An annular groove formed in the outer side of the plate facilitates drilling of air jet bores therein at an angle relative to the through- bore and adhesive bead ejected therefrom. The air jet bores receive pressurized air from the air delivery passageway in the nozzle and direct jets of pressur- zed air substantially tangent to the adhesive bead to form elongated adhesive fibers and to impart a spiral motion to the elongated fibers so that they are formed in a compact spray pattern for deposition onto a substrate.
614019
Corporation Nordson
Macrae & Co.
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