Electrostatic spray tool system

Patent metadata

Field	Value
Publication number	US-9399232-B2
Application number	US-201414250228-A
Country	US
Kind code	B2
Filing date	Apr 10, 2014
Priority date	Apr 17, 2013
Publication date	Jul 26, 2016
Grant date	Jul 26, 2016

Abstract

A system including an electrostatic tool including a handle, a first trigger configured to move between a first trigger position and a second trigger position, wherein the electrostatic tool is configured to be inactive when the first trigger is in the first trigger position and to spray a coating material when the first trigger is in the second trigger position, an electrostatic activation system configured to activate and deactivate electrical charging of the coating material, and wherein the first trigger and the electrostatics activation system may be separately and simultaneously engaged with a single hand.

First claim

The invention claimed is:

1. A system, comprising:
an electrostatic tool comprising:
a handle;
a first trigger configured to move between a first trigger position and a second trigger position, wherein the electrostatic tool is configured to block a fluid flow in the first trigger position, and the electrostatic tool is configured to enable the fluid flow in the second trigger position to apply a coating material; and
an electrostatic activation system comprising a second trigger configured to selectively activate and deactivate electrical charging of the coating material, wherein the second trigger is disposed along the first trigger;

wherein the electrostatic tool comprises at least one of: the first and second triggers are directly coupled together, or the first and second triggers are disposed in a nested arrangement, or the first and second triggers have separate user contact surfaces, or a combination thereof.

2. The system of claim 1 , wherein the second trigger is configured to close a switch by moving between a first electrostatic position away from the handle and a second electrostatic position towards the handle.

3. The system of claim 2 , wherein the second trigger couples to the first trigger and is configured to move independently of the first trigger.

4. The system of claim 3 , wherein the switch is a reed switch and the second trigger comprises a magnet, and the second trigger is configured to activate the reed switch with the magnet when the second trigger is in the second electrostatic position.

5. The system of claim 1 , wherein the handle includes a handle aperture exposing a reed switch.

6. The system of claim 1 , wherein the electrostatic activation system comprises a plunger configured to move axially within a casing.

7. The system of claim 6 , wherein the plunger is configured to move a magnet between a first electrostatic position that activates a reed switch and a second electrostatic position that deactivates the reed switch.

8. The system of claim 7 , wherein the plunger is configured to extend through a trigger aperture in the first trigger when the first trigger is in the second position.

9. The system of claim 8 , wherein the casing does not extend through the trigger aperture of the first trigger.

10. The system of claim 6 , wherein a spring is configured to move the plunger from the first electrostatic position to the second electrostatic position.

11. The system of claim 6 , wherein the casing is coupled to the handle.

12. The system of claim 1 , wherein the first and second triggers are directly coupled together.

13. The system of claim 1 , wherein the first and second triggers are disposed in the nested arrangement.

14. The system of claim 13 , wherein the nested configuration has the second trigger extending at least partially through a trigger aperture in the first trigger.

15. The system of claim 1 , wherein the first and second triggers have separate user contact surfaces.

16. A system, comprising:
a trigger assembly configured to couple to an electrostatic tool, wherein the trigger assembly comprises:
a first trigger configured to move between a first trigger position and a second trigger position, wherein the first trigger position is configured to control the electrostatic tool to block a fluid flow, and the second trigger position is configured to control the electrostatic tool to enable the fluid flow to apply a coating material; and
a second trigger configured to selectively activate and deactivate electrical charging of the coating material via an electrostatic system, wherein the second trigger is disposed along the first trigger;

wherein the electrostatic tool comprises at least one of: the first and second triggers are directly coupled together, or the first and second triggers are disposed in a nested arrangement, or the first and second triggers have separate user contact surfaces, or a combination thereof.

17. The system of claim 16 , wherein the first and second triggers are directly coupled together.

18. The system of claim 16 , wherein the first and second triggers are disposed in the nested arrangement.

19. The system of claim 18 , wherein the nested configuration has the second trigger extending at least partially through a trigger aperture in the first trigger.

20. The system of claim 16 , wherein the first and second triggers have separate user contact surfaces.

21. A system, comprising:
an electrostatic tool comprising:
a handle;
a first trigger configured to move between a first trigger position and a second trigger position, wherein the electrostatic tool is configured to block a fluid flow in the first trigger position, and the electrostatic tool is configured to enable the fluid flow in the second trigger position;
an electrostatic activation system comprising a second trigger configured to activate and deactivate electrical charging of the coating material, wherein the second trigger is disposed along the first trigger, and the first and second triggers are configured to be user actuated independent from one another.

22. The system of claim 21 , wherein the second trigger comprises a plunger that extends through a trigger aperture in the first trigger when the first trigger is in the second trigger position.

23. The system of claim 22 , wherein the plunger is configured to move a magnet between a first electrostatic position that activates a reed switch and a second electrostatic position that deactivates the reed switch.

24. The system of claim 21 , wherein the second trigger includes a first plunger and a second plunger on opposite sides of the handle.

Assignees

• Carlisle Fluid Tech Inc

Inventors

• Hasselschwert Daniel J

Classifications

• B05B12/002

  Manually-actuated controlling means, e.g. push buttons, levers or triggers (for single units B05B11/00) · CPC title

• B05B5/0533

  Electrodes specially adapted therefor; Arrangements of electrodes · CPC title

• B05B5/043

  using induction-charging · CPC title

• B05B1/005

  Nozzles or other outlets specially adapted for discharging one or more gases · CPC title

• B05B5/053

  Arrangements for supplying power, e.g. charging power · CPC title