Hot melt adhesive spray apparatus

Details Hot melt adhesive spray apparatus Hot melt adhesive spray apparatus

1994-02-09

1995-10-17

Jones, W. Gary

Coating apparatus

With treatment of coating material

Of recirculated coating material

239127, 239583, 222318, 13762548, 118313, B05C 1100, B05C 500, B05B 130

Patent

active

054586844

ABSTRACT:
An improved apparatus for spraying hot melt adhesive includes a gear pump for providing a metered flow of hot melt adhesive. When a valve member is in a first position, a predetermined rate of flow of hot melt adhesive is conducted from the gear pump to a nozzle. When the valve member is in the first position, the valve member blocks a flow of adhesive to a recirculation passage. When the valve member is in a second position, the valve member directs the flow of adhesive from the gear pump to the recirculation passage and blocks a flow of adhesive to the nozzle.

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patent: 4983109 (1991-01-01), Miller et al.
patent: 4995333 (1991-02-01), Keller et al.
patent: 5238190 (1993-08-01), Herke

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