Abstract:
This device comprises a rotating spray element, such as a bowl, and drive means, such as a rotor, adapted to drive said element in rotation. It further comprises means for magnetic coupling between the rotating element and the drive means. An air-gap is formed between the coupling means which advantageously include at least one magnet associated with a looping annulus. The magnet may be fitted on the rotor and/or on the bowl.
Abstract:
A rotary bell cup for atomizing particulate material such as paint includes a generally conical overflow surface having a generally constant flow angle defining a radially inward central axial opening and a radially outward atomizing edge with a bevel. A central flat portion is disposed between the conical overflow surface and the radially inward central axial opening. A deflector having a deflection surface of generally rotational symmetry is disposed in front of the central opening having a rear flat surface generally parallel to the central portion and a rear conical surface generally parallel to the conical overflow surface.