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An improved rotary paint atomizing device in the form of a bell and a cover plate which is releasably attached to the front center of the bell. Paint fed along the axis of the device onto a conical projection on the back surface of the cover plate accelerates and flows outward in a radial direction.

An improved rotary paint atomizing device in the form of a bell and a cover plate which is releasably attached to the front center of the bell. Paint fed along the axis of the device onto a conical projection on the back surface of the cover plate accelerates and flows outward in a radial direction. The cover plate surface is curved so that as the paint flows outwardly, it also flows first forward and then back until it reaches radial slots formed in a peripheral rim on the cover plate where the cover plate contacts an interior bell surface. Paint discharges from the slots onto a conical interior bell surface and flows in wide, closely spaced ribbons which merge into a uniform, continuous thin sheet before it is discharged from the bell edge. As the paint discharges from the bell edge, the sheet produces extremely fine uniform ligaments which break up to produce fine, uniform small paint particles.

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An improved rotary paint atomizer device comprising a bell adapted to be rotated about an axis at high speeds, said bell having a front side defining an interior wall connecting with an interior generally conical surface, said conical surface extending symmetrical about said axis to a forward paint

An improved rotary paint atomizer device comprising a bell adapted to be rotated about an axis at high speeds, said bell having a front side defining an interior wall connecting with an interior generally conical surface, said conical surface extending symmetrical about said axis to a forward paint discharge edge, a paint receiving chamber located on said axis, said chamber having a forward surface rotated with said bell, a stationary axial paint feed tube having a forwardly directed discharge end located in said chamber on said axis, said tube directing paint along said axis at said forward surface, means for feeding paint from said chamber onto said conical bell surface, and a plurality of small straight passages extending from said forward chamber surface at a location spaced from said axis to said interior wall to deliver a limited portion of the paint delivered to said chamber to flow across said interior wall and said conical surface to said discharge edge.