Powder spray coating device

Details Powder spray coating device Powder spray coating device

1996-12-20

1998-07-07

Edwards, Laura

Coating apparatus

Projection or spray type

Applying solid particulate material

118300, 118663, 118676, 118679, 118684, 118685, 118620, 118621, 239407, B05B 700, B05C 500, B05C 1900

Patent

active

057762490

ABSTRACT:
A powder spray coating device which includes an injector air flow controller having two alternate air flow paths for delivering feed air to an injector which delivers powder to a spray device. Optionally, the air flow controller also may have two alternate air flow paths for delivering supplemental air to the injector or downstream from the injector. In a first setting of a mode selector, feed air is delivered through a manually adjusted air valve and in a second setting of the mode selector the feed air is delivered through an automatically adjusted air valve. When supplemental air is provided, the supplemental air passes through a manually adjusted air valve in the first mode selector setting and through an automatically adjusted air valve in the second mode selector setting. A controller may detect articles to be coated and set the automatically adjusted feed air and supplemental air valves.

REFERENCES:
patent: 3450092 (1969-06-01), Kock
patent: 3674205 (1972-07-01), Kock
patent: 4077354 (1978-03-01), Walberg
patent: 4284032 (1981-08-01), Moos et al.
patent: 4561380 (1985-12-01), Mulder et al.
patent: 5131350 (1992-07-01), Buschor
patent: 5558713 (1996-09-01), Siegfried et al.

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