Fluid sprinkling – spraying – and diffusing – Processes – Including electrostatic charging
Patent
1993-02-16
1994-08-30
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Processes
Including electrostatic charging
239112, 239526, 239691, B05B 5025, B05B 1502, B05B 901
Patent
active
053419898
ABSTRACT:
An electrostatic powder spray gun includes a hose purge adapter connected in the hose line that supplies powder to the gun. The hose purge adapter is connected to a supply of purge gas and allows the powder flow path in the hose line and the powder flow path in the gun to be quickly and conveniently purged of accumulations of powder. By facilitating purging of the powder flow path, the purge adapter prevents accumulations of powder that may tend to come loose as a soft lump of powder, usually different in color, and cause an imperfection on the surface of the object being coated. The purge adapter also reduces the collections of powder in the flow path in the hose line which facilitate a grounding path by the powder, resulting in possible shocks to the operator and in a high current draw into the gun which can result in poor transfer efficiency.
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Fulkerson Terrence M.
Pallante Robert R.
Kashnikow Andres
Morris Lesley D.
Nordson Corporation
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