US 6,439,485 B1Granted

Rotary spray atomizer

AssigneeABB Patent GmbH

InventorGunter Börner

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Abstract

A rotary spray atomizer for applying electrically conductive paint, in particular water-based paint, to surfaces, includes a housing. A spray head is fitted on front of the housing for receiving a supply of paint and discharging the supply of paint in a spray mist as a result of rotation. A motor is disposed in the housing for rotary actuation of the spray head. At least two electrode holders are disposed along a concentric circle and extend towards the front parallel to a longitudinal axis of the housing. Electrodes are each accommodated in and protrude from an end of a respective one of the electrode holders. High-voltage sources constructed as a cascade are each plugged into a respective one of the electrode holders for receiving a low-voltage current, feeding one of the electrodes and causing the electrode to generate an electric field applying the spray mist discharged by the spray head to an application surface.

Claims10

Dependent claims

A rotary spray atomizer for applying electrically conductive paint to surfaces, comprising:

a housing having a front and a longitudinal axis;
a spray head fitted on said front of said housing for receiving a supply of paint and discharging the supply of paint in a spray mist as a result of rotation;
a drive motor disposed in said housing for rotary actuation of said spray head;
at least two electrode holders disposed along a concentric circle, having an end, and extended towards said front parallel to said longitudinal axis of said housing;
at least two electrodes each accommodated in and protruding from said end of a respective one of said at least two electrode holders;
and
at least two cascaded high-voltage sources each built into a respective one of said at least two electrode holders for receiving a low-voltage current, feeding a respective one of said at least two electrodes and causing said at least two electrodes to generate an electric field applying the spray mist discharged by said spray head to an application surface.

4 more elements

Dependencies are inferred from the claim text.