Rotary paint atomizing device

An improved rotary paint atomizer device comprising a bell adapted to be rotated about an axis at high speeds, said bell having a front defining an interior wall connecting with an interior generally conical surface, said surface extending symmetrical about said axis to a paint discharge edge, a circular cover plate having front and rear surfaces, means for releasably attaching said cover plate coaxially to said bell front, said bell wall and said cover plate defining a paint receiving chamber, said rear surface forming one side of said chamber, said cover plate having an outer edge forming a rim which contacts, said bell front, a plurality of circumferentially spaced uniform radial slots formed through said rim, said slots causing paint to flow through centrifugal force from said chamber through said slots and onto said conical bell surface as a plurality of uniform streams which merge into a continuous uniform sheet as such paint flows along said interior conical surface to said discharge edge, and a plurality of small passages extending from said rear surface at a location spaced from said axis to said front surface at a location adjacent to said axis, whereby a limited portion of the paint delivered to said chamber flows through said passages and across said front surface.

An improved rotary paint atomizer device comprising a bell adapted to be rotated about an axis at high speeds including a generally cup-shaped member having an annular front flow surface which extends generally outwardly relative to said axis of rotation and which terminates at an outer paint discharge edge, an annular plate extending across said cup-shaped member and defining a rear surface terminating at an annular outer portion and a front surface, said rear surface having a rearwardly projecting conical portion symmetrical about said axis, a plurality of first passages extending through said outer portion for delivering paint from said rear surface through said plate to said annular front flow surface, paint feed tube means having a discharge end located on said axis for directing a flow of paint axially onto said cover plate conical portion, such paint flowing radially outwardly along said rear surface toward said first passages, and at least one second passage extending through said plate, said second passage having an inlet on said conical portion radially offset from said axis and an outlet at a central portion of said plate front surface.

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.