Claims
- 1. A powder coating apparatus comprising:a housing having a powder coating area positioned generally between an inlet for receiving a workpiece and an outlet for allowing the workpiece to exit the powder coating area, the powder coating area having a workpiece travel path extending between the inlet and the outlet, the housing including an interior surface extending lengthwise along the direction of said workpiece travel path and sloped transversely at least partially around said workpiece travel path, and an input device including an outlet communicating with said powder coating area and configured to spray pressurized air and powder in a direction generally following said interior surface.
- 2. The powder coating apparatus of claim 1, further comprising:a powder charging device configured to electrostatically charge the powder sprayed into said powder coating area.
- 3. The powder coating apparatus of claim 1, further comprising:a second input device including a second outlet communicating with said powder coating area and configured to spray pressurized air and powder in a direction generally following said interior surface such that the air and powder from said second input device swirl around at least a portion of said workpiece travel path.
- 4. The powder coating apparatus of claim 1, wherein said transversely sloped surface further comprises a curved surface.
- 5. The powder coating apparatus of claim 1, wherein said transversely sloped surface is at least partially cylindrical.
- 6. The powder coating apparatus of claim 1, further comprising:a powder and air supply coupled to said input device.
Parent Case Info
This application is a continuation of application Ser. No. 09/802,622, filed Mar. 9, 2001 now U.S. Pat. No. 6,458,427, which is a divisional of application Ser. No. 09/196,677, filed Nov. 20, 1998 (now U.S. Pat. No. 6,240,873), the disclosures of which are fully incorporated herein by reference.
US Referenced Citations (6)
Continuations (1)
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Number |
Date |
Country |
Parent |
09/802622 |
Mar 2001 |
US |
Child |
10/223386 |
|
US |