Powder coating spray gun reservoir assembly

A powder coating spray gun reservoir assembly, comprising:

• a first section including a first end, a second end, and a first lateral wall extending between the first end and the second end;
• a second section including a third end engaged with the second end, a fourth end, and a second lateral wall extending between the third end and the fourth end;
• a nozzle connected to the fourth end, the nozzle decreasing in diameter in a first axial direction;
• a screen removably secured between the first section and the second section;
• an agitator rotatably arranged in the first section, the agitator including:
• a shaft;
• and,
• at least one first blade connected to the shaft and operatively arranged to engage the screen;
• and,
• a charging device;
• wherein the agitator is operatively arranged to rotate relative to the screen to displace powder from the first section to the second section.

A method of fluidizing powder for use in a powder coating spray gun, the method comprising:

• storing un-sifted powder in a first section;
• using an agitator, sifting the un-sifted powder through a screen to form sifted powder in a second section;
• and,
• injecting an air stream into at least one of the un-sifted powder and the sifted powder.