Apparatus for spraying droplets of hot melt adhesive

Details Apparatus for spraying droplets of hot melt adhesive Apparatus for spraying droplets of hot melt adhesive

1988-10-05

1990-03-27

Beck, Shrive

Coating processes

Spraying

Moving the base

118300, 4272071, 239101, 2394255, 239413, B05D 102, B05B 108

Patent

active

049119567

ABSTRACT:
An apparatus for spraying droplets of molten thermoplastic adhesive comprises a spray device having a nozzle formed with a discharge outlet which ejects a continuous stream of molten thermoplastic adhesive. A stitcher device connected to a source of pressurized air is operative to supply intermittent, pulsed jets of atomizing air to air jet bores associated with the nozzle which discharge the pulsed air jets into contact with the exterior of the continuous stream of molten thermoplastic material forming well defined globules or droplets for deposition onto a substrate.

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patent: 4630774 (1986-12-01), Rehman et al.
patent: 4711683 (1987-12-01), Merkatoris
patent: 4721252 (1988-01-01), Colton

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