B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
326/3, 117/56
B05B 7/14 (2006.01) B05D 1/12 (2006.01)
Patent
CA 1277187
Abstract of the Disclosure A powder spray system for applying particu- late powder material to a substrate includes a volume- tric or gravimetric dry material feeding device having an outlet connected to a manifold formed with an internal cavity and a plurality of passageways commu- nicating with the internal cavity. A highly accurate- ly metered quantity of powder is transmitted into the internal cavity of the manifold, which is either applied to the substrate or recirculated back to the powder source. An air amplifier connected to one of the passageways is operable to draw ambient air through a vent passageway into the internal cavity of the manifold to form a stream of air-entrained powder. The powder stream is then drawn out of the internal cavity of the manifold by the air amplifier into a spray gun for discharge onto the substrate. A second air amplifier connected to another passageway formed in the manifold is operated when the first air ampli- fier in the spray gun is closed to draw the powder entering the manifold into a return line for recircu- lation back to the powder source.
553652
Corporation Nordson
Kaiser Thomas A.
Macrae & Co.
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