Triboelectric sprayer
AssigneeEisenmann France Sarl
InventorAdrien Lacchia
Life of this patent
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Abstract
The invention concerns a triboelectric sprayer (1) for spraying electrostatic powder paint, comprising a powder intake (13), an air intake (11), a conduit (5) transporting air and powder while providing the electrical charge of the powder and, in front of said charging conduit (5), means (18, 19, 20) for emitting at least an air-powder mixture jet. The air intake (11) is located in the axis (3) of the charging conduit (5), while the powder intake (13, 15) is arranged laterally and converges in an acute angle (A) with the air intake (11), in a point (P) located upstream of the charging conduit (5). The air intake can consist of an injector (11) made of electrically conductive material which also constitutes an earthing member of the wall (5) of the charging conduit (5).
Claims7
A triboelectric spray gun for the electrostatic spraying of powder paint, of the kind comprising:
- a powder intake (13, 15);
- an air intake (11);
- a duct (5) transporting the air and the powder, while ensuring that the powder becomes electrically charged;
- and
- in front of said charging duct (5), means (18, 19, 20) for emitting at least one jet of air/powder mixture;
- characterized in that:
- the air intake (11) is located on the axis (3) of the charging duct (5);
- and
- the powder intake (13, 15) is placed laterally and converges, at an acute angle (A) to the air intake (11), at a point (P) located upstream of the charging duct (5).
Dependencies are inferred from the claim text.