Continuously energized electrostatic coating voltage block
OwnerRobert E. Daltoninventor
Life of this patent
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Abstract
A continuously energized electrostatic spray coating system sends measured masses of highly conductive coating material across an insulating air space from a grounded pulser to a high voltage container. A series of such continuously energized voltage blocks have their output connected to a manifold which is alternately supplied paint from one of the voltage blocks by remote control.
Claims9
In an electrostatic coating system having a spray gun for ejecting highly electrically conductive coating material and an electrode charged to high voltage adjacent the location of ejection of the coating material from the spray gun having a high voltage power supply, and having a coating material supply system supplying coating material to the gun, wherein the improvement comprises,
- a first sub-system in said coating material supply system containing coating material electrically grounded,
- a second sub-system in said coating material supply system containing coating material insulated from electrical ground and connected to said high voltage power supply,
- means for periodically ejecting predetermined masses of coating material into the atmosphere forming a portion of said first sub-system, and
- means forming a portion of said second sub-system for periodically receiving said predetermined masses of coating material ejected across a predetermined air space, said air space having a sufficiently large predetermined dimension between said first and second means and said masses of coating material being of a relatively small predetermined size to prevent arcing in said air space when said second system is charged to a high voltage by said high voltage power supply.
An electrostatic coating system having a spray gun for ejecting a highly electrically conductive coating material and an elecrode charged to high voltage adjacent the location of ejection of the coating material from the spray gun having a high voltage power supply and having a coating material supply system applying coating material to the gun, wherein the improvement comprises,
- a first sub-system in said coating material supply system containing a multiplicity of coating materials electrically grounded,
- a second sub-system in said coating material supply system containing the same multiplicity of coating materials insulated from electrical ground and connected to said high voltage power supply,
- means for periodically ejecting predetermined masses of coating materials into the atmosphere forming a portion of said first sub-system, and
- means forming a portion of said second sub-system for periodically receiving said predetermined masses of coating materials as they are ejected across said air space having a sufficiently large predetermined dimension between said first and second means and said masses of coating material being of a relatively small predetermined size to prevent arcing in said air space when said second system is charged to a high voltage by said high voltage power supply.
Dependencies are inferred from the claim text.