System for spraying a powder coating product and sprayhead incorporated in it
AssigneeSames S.A.
InventorsMichel Di Gioia, Jose Rodrigues
Life of this patent
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Abstract
A system for spraying a powder coating product includes a rotary sprayhead which is preferably of the type which is electrostatically charged. The sprayhead has a rotary part which can be driven in rotation. A narrow flow space in the sprayhead in the form of a flat ring incorporates a flow chicane forming an impact surface on the path of the coating product.
Claims7
A system for spraying a powder coating product to coat objects, said system including a sprayhead and an air-powder mixture feed pipe having an outlet discharging axially into said sprayhead, which is in the form of a bowl or disk having a circular ejection edge at its periphery, at least one rotating part adapted to be driven in rotation and a narrow flow space between said outlet of said feed pipe and said circular ejection edge at the periphery of said sprayhead, which flow space includes at least one flow chicane forming an impact surface on the path of said coating product.
A sprayhead for use in a system for spraying a powder coating product, said sprayhead comprising a bowl or disk having at least one part adapted to be driven in rotation, an axial cavity adapted to accommodate an air-powder mixture feed pipe, a circular ejection edge at its periphery and a narrow flow space between said cavity and said circular ejection edge, said flow space includes at least one flow chicane forming an impact surface.
Dependencies are inferred from the claim text.