Rotary atomizer with protective shroud
US4899936A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 21, 1989 |
| Grant date | Feb 13, 1990 |
| Priority date | — |
| Expiry date | Jun 21, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/0426
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A rotary atomizer (20) includes a manifold assembly (22) adapted to be attached to a mechanism for moving the atomizer and an air bearing turbine motor housing assembly (21) releasably secured to the manifold assembly. Sources of pressured fluid for actuating the atomizer and coating fluid are connected to the manifold (29) which has fittings (32, 33, 34, 35, 36) for releasably sealing to apertures (42) in the rear cover (43) of the housing assembly. The opposite end of the housing includes a shaping air cap (24) and a shaping air ring (25) which cooperate to define an annulus for discharging a thin ring of shaping air over the peripheral edge of an atomizer bell (26) to direct fluid particles toward a target. Exhaust air from the turbine motor (46) is vented to the inside of the housing and directed to a chamber (79) behind the atomizer bell to aid in directing the fluid particles. A magnetic speed pickup (103, 104) generates a signal which is coupled through a circuit (105, 106) that electrically isolates the high voltage which is applied to the atomizer to electrostatically charge the coating particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.