ELECTRODE HOLDER FOR A POWDER SPRAYING DEVICE

• US 20070063077A1
• Filed: 08/02/2006
• Published: 03/22/2007
• Est. Priority Date: 08/12/2005
• Status: Active Grant

• Current Assignee: J. Wagner AG (J. Wagner GmbH)
• Original Assignee: J. Wagner AG (J. Wagner GmbH)
• Inventors: Schwarz, Thomas, Plascar, Pierre, Keudell, Leopold
• Granted Patent: US 7,992,515 B2
• Time in Patent Office: Days
• US Class Current: 239/690
• CPC Class Codes: B05B 5/032 for spraying particulate materials
• CPC Class Codes: B05B 5/0533 Electrodes specially adapted therefor; Arrangements of electrodes

Abstract

An electrode holder for a powder spraying device includes a powder channel and a bridge arranged into the powder channel for holding an electrode. In addition a wedge is provided, which can be fixed on the bridge, on the upstream side of the bridge.

Claims

1. An electrode holder for a powder spraying device,

with a powder channel,

with a bridge arranged in the powder channel for holding an electrode,

wherein the upstream section of the powder channel is developed as sleeve, in which a powder tube can be pushed into,

with an electric contact, which is arranged on the upstream fore-part of the sleeve.

2. An electrode holder according to claim 1, wherein the electric contact is developed as contact ring.

3. An electrode holder according to claim 1, with a wedge, which can be fixed on the bridge, on the upstream side of the bridge.

5. An electrode holder according to claim 3, wherein the connection, through which the wedge can be fixed on the bridge, is developed as plug connection.

6. An electrode holder according to claim 3,

wherein the bridge has a taper on its upstream side,

wherein the wedge has two brackets, which can be plugged-in on the taper.

7. An electrode holder according to claim 3, wherein the plug connection is developed as self-centering plug connection.

8. An electrode holder according to claim 3, wherein the wedge has polypropylene, polyoxymethylene, glass or ceramic.

9. An electrode holder according to claim 3, wherein the wedge is positioned in such a way that its pointed end ends there where the powder tube begins.

10. An electrode holder according to claim 1,

with an air duct, through which the electrode can be supplied with air (L), and

with an annular seal arranged downstream behind the air duct.

11. A powder spraying device including an electrode holder according to claim 1,

with a mounting sleeve, which holds the electrode holder and which has a stopper, whereby the powder tube is clamped between the stopper and the electrode holder.

12. A powder spraying device including an electrode holder according to claim 1,

with a nozzle, which has a nozzle slot, whereby the nozzle and the electrode holder are developed in such a way that the nozzle slot runs parallel to the edge of the wedge in the joined state.

13. A powder spraying device including an electrode holder according to claim 1,

wherein the axial distance (Δ

X) between the downstream end of the bridge and the internal edge of the nozzle slot parallel to it is of 6 to 15 mm.

4. An electrode holder for a powder spraying device,

with a powder channel,

with a bridge arranged in the powder channel for holding an electrode, and

with a wedge, which can be fixed on the bridge, on the upstream side of the bridge.

14. A powder spraying device,

wherein a powder channel is provided,

wherein a bridge is arranged in the powder channel for holding an electrode,

wherein a powder spraying nozzle having a nozzle slot is provided,

wherein the axial distance (Δ

X) between the downstream end of the bridge and the internal edge of the nozzle slot parallel to it is of 6 to 15 mm.