Patent ID: 8607728

Claim:
A powder coating apparatus, comprising; a paint booth having a ceiling, two side walls, two end walls and a floor; a first air jetting assembly coupled to upper portions of the two side walls, for causing air to flow downwards along the side walls; and an air discharge assembly coupled to lower portions of the two side walls, for sucking the air flowing along the side walls and discharging the air out of the paint booth; and wherein the first air jetting assembly comprises: a first plate member which is a rectangular member having two long side portions and two short side portions, such that one of the two long side portions is fixed to the ceiling while the two short side portions are respectively fixed to the two end walls, and the other one of the two long side portions is positioned closer to the side wall than the one of the long side portions, whereby a first space is formed by the first plate member, the ceiling, the side walls and the end walls; and a first air supply duct that supplies air from outside the paint booth into the first space, wherein a first jetting hole, through which the air supplied into the first space is jetted, is formed between the first plate member and each of the side walls.