Energy dissipation unit for high voltage charged paint system

Patent metadata

Field	Value
Publication number	US-10239072-B2
Application number	US-201615262390-A
Country	US
Kind code	B2
Filing date	Sep 12, 2016
Priority date	Sep 22, 2015
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

A grounding dissipation unit for a paint delivery apparatus for delivering paint is disclosed. The paint delivery apparatus includes a first paint line for carrying paint from a canister, a second paint line for carrying paint to an ionizing applicator for electrically charging paint, a first water line for carrying water to a grounding source, a second water line carrying water to the grounding dissipation unit, and a third water line for carrying water to a dump. The grounding dissipation unit includes a core made of an electrically conductive material. A paint bore in the core connects the paint lines, and a water bore in the core connects to the water lines to ground the system. The paint bore and water bore do no intersect within the core.

First claim

What is claimed is:

1. A grounding dissipation unit for a paint delivery apparatus for delivering paint, the paint delivery apparatus including a first paint line for carrying paint from a canister, and a second paint line for carrying paint to an ionizing applicator for electrically charging paint, comprising:
a grounding source;
a first water line for carrying water to the grounding source;
a second water line carrying water to the grounding dissipation unit;
a third water line for carrying water to a dump; and
a core comprising an electrically conductive material, the core further comprising;
a paint bore in the core having a paint inlet and a paint outlet, wherein the first paint line is connected to the paint inlet for carrying paint to the grounding dissipation unit and the second paint line is connected to the paint outlet for carrying paint away from the grounding dissipation unit;
a water bore in the core having a water inlet and a water outlet, the second water line is connected to the grounding source and to the water inlet for carrying water to the grounding dissipation unit and the third water line is connected to the water outlet for carrying water away from the grounding dissipation unit to a dump; and
wherein the paint bore and water bore do not intersect within the core.

2. The grounding dissipation unit of claim 1 wherein the electrically conductive material is stainless steel.

3. The grounding dissipation unit of claim 1 further comprising:
a housing, said housing comprising:
a top for holding the core, the housing having a slot for purging ozone gas from the grounding dissipation unit; and
a base fixedly attached to the paint delivery apparatus, said top being removably secured to the base.

4. The grounding dissipation unit of claim 3 wherein the core further comprises:
a purge puck providing additional separation between a portion of the core and the housing, the purge puck having a notch corresponding to the slot in the housing, the purge puck comprised of a non-conducting material.

5. The grounding dissipation unit of claim 4 wherein the non-conduction material is a thermoplastic.

6. The grounding dissipation unit of claim 5 wherein the thermoplastic is polyoxymethylene.

7. The grounding dissipation unit of claim 3 wherein the housing is comprised of a non-conducting material.

8. The grounding dissipation unit of claim 7 wherein the non-conduction material is a thermoplastic.

9. The grounding dissipation unit of claim 8 wherein the thermoplastic is polyoxymethylene.

10. The grounding dissipation unit of claim 1 wherein the grounding source comprises:
a manifold connected to the grounding source and having a bore, an inlet, and an outlet;
wherein the first water line is connected to the inlet of the manifold; and
wherein the second water line is connected to the outlet of the manifold for providing a pathway to ground the grounding dissipation unit.

11. The grounding dissipation unit of claim 3 wherein the top is removably secured to the base by three lateral pins and a bolt.

12. A method of grounding a paint delivery apparatus for delivering paint, the paint delivery apparatus including a first paint line for carrying paint from a canister, a second paint line for carrying paint to an ionizing applicator for electrically charging paint, a first water line for carrying water to a grounding source, a second water line for carrying water to the grounding dissipation unit, and a third water line for carrying water to a dump, comprising the steps of:
providing a grounding dissipation unit having a core comprising an electrically conductive material, a paint bore in the core having a paint inlet and a paint outlet, wherein the first paint line is connected to the paint inlet for carrying paint to the grounding dissipation unit and the second paint line is connected to the paint outlet for carrying paint away from the grounding dissipation unit, a water bore in the core having a water inlet and a water outlet, the second water line is connected to the water inlet for carrying water to the grounding dissipation unit and the third water line is connected to the water outlet for carrying water away from the grounding dissipation unit to the dump;
running water from a water source through the first water line to the grounding source, through the second water line to the core of the grounding dissipation unit, through the water bore, and through the third water line to the dump, wherein the water provide a grounding pathway from the grounding dissipation unit to the grounding source; and
grounding the grounding dissipation unit and the paint delivery apparatus as water runs through the first, second, and third water lines and the grounding dissipation unit.

13. The method of claim 12 , further comprising the steps of:
disconnecting the second and third water lines and the first and second paint lines from the core;
removing the core and a housing top surrounding the core;
replacing the core and the housing top with a replacement core and housing top;
reconnecting the second and third water lines and the first and second paint lines to the replacement core.

14. A grounding dissipation unit, comprising
a first line carrying an electrostatic liquid to the grounding dissipation unit;
a second line carrying the electrostatic liquid away from the grounding dissipation unit;
a first water line for carrying water from a grounding source;
a second water line for carrying water to a dump;
a core comprising an electrically conductive material;
a bore in the core having a first inlet and a second outlet, wherein a first line is connected to the first inlet and the second line is connected to the second outlet;
a water bore in the core having a water inlet and a water outlet, the first water line is connected to the water inlet and the second water line is connected to the water outlet;
wherein the bore and water bore do not intersect within the core, and
wherein the water flowing from the grounding source through the first water line to the grounding dissipation unit provides a grounding path between the grounding dissipation unit and the grounding source.

15. The grounding dissipation unit of claim 14 wherein the electrically conductive material is stainless steel.

16. The grounding dissipation unit of claim 15 further comprising:
a housing, said housing comprising:
a top for holding the core, the housing having a slot for purging ozone gas from the grounding dissipation unit; and
a base, said top being removably secured to the base.

17. The grounding dissipation unit of claim 16 wherein the core further comprises:
a purge puck providing additional separation between a portion of the core and the housing, the purge puck having a notch corresponding to the slot in the housing, the purge puck comprised of a non-conducting material.

18. The grounding dissipation unit of claim 17 wherein the housing is comprised of a non-conducting material.

19. The grounding dissipation unit of claim 18 wherein the non-conduction material is a thermoplastic.

20. The grounding dissipation unit of claim 19 wherein the thermoplastic is polyoxymethylene.

Assignees

• Honda Motor Co Ltd

Inventors

• Scaife Graham
• Shido Koji
• Honma Masashi
• Sudo Norihiko

Classifications

• B05B5/1608 Primary

  the liquid or other fluent material being electrically conductive · CPC title

• B05B5/043

  using induction-charging · CPC title