Current diverter ring

• US 9,614,339 B2
• Filed: 04/28/2015
• Issued: 04/04/2017
• Est. Priority Date: 04/18/2011
• Status: Active Grant

• Current Assignee: Inpro/Seal LLC (Waukesha Bearings Corporation)
• Original Assignee: Inpro/Seal LLC (Waukesha Bearings Corporation)
• Inventors: Vicars, Dwight A., Tejano, Robert A., Orlowski, David C.
• Primary Examiner(s): NGUYEN, TRAN N
• Application Number:
  US14/698,294
• Publication Number:
  US 20150244128A1
• Time in Patent Office: 707 Days
• CPC Class Codes: H01R 39/10 other than with external cylindrical contact surface, e.g. flat slip-rings
• CPC Class Codes: H01R 39/12 using bearing or shaft surface as contact surface
• CPC Class Codes: H01R 39/64 Devices for uninterrupted current collection
• CPC Class Codes: H02K 11/40 Structural association with grounding devices
• CPC Class Codes: H02K 5/1732 radially supporting the rotary shaft at both ends of the rotor H02K5/1737 takes precedence

Abstract

The current diverter rings and bearing isolators serve to dissipate an electrical charge from a rotating piece of equipment to ground, such as from a motor shaft to a motor housing. One embodiment of the current diverter is substantially arc shaped with a plurality of radial channels extending there through. A conductive assembly may be positioned in each radial channel such that a contact portion of the conductive assembly is positioned adjacent a shaft passing through the center of the current diverter ring. The arc-shaped body may be particularly useful during installation over certain existing shafts.

Claims

1. A multi-ring current diverter ring comprising:

a. A plurality of bodies adjacent each other, wherein each said body of said plurality is substantially circular shaped;

b. a main aperture positioned in the center of each said body;

c. a plurality of radial channels, wherein each said radial channel extends from the radial exterior surface of said each said body to the radial interior surface of each said body; and

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d. a conductive assembly positioned in one of said radial channels, wherein a contact portion of said conductive assembly protrudes from said radial channel radially inward past said radial interior surface.

2. The multi-ring current diverter ring according to claim 1 wherein each said body is further defined as being a full circle.

3. The multi-ring current diverter ring according to claim 1 wherein said multi-ring current diverter ring further comprises a plug, wherein said plug engages said radial channel to secure the radial position of a corresponding conductive assembly.

4. The multi-ring current diverter ring according to claim 1 wherein said conductive assembly comprises a carbon-based filament.

5. The multi-ring current diverter ring according to claim 1 wherein said conductive assembly comprises a binder and a contact portion, and wherein said contact portion extends into said main aperture.

6. The multi-ring current diverter ring according to claim 1 wherein said body is further defined as being constructed of bronze.

8. The multi-ring current diverter ring according to claim 4 wherein said plurality of radial channels is further defined as three radial channels.

12. The multi-ring current diverter ring according to claim 8 wherein said plurality of radial channels is further defined as being equally spaced about said body.

17. The multi-ring current diverter ring according to claim 8 wherein said conductive assembly comprises a carbon-based filament.

7. A multi-ring current diverter ring comprising:

a. a retainer having a main aperture therein and having a substantially circular shape and having at least two annular groove formed therein;

b. at least two bodies positioned adjacent each other, wherein each said body of said plurality is substantially circular shaped and sized to fit within said an annular groove positioned in said retainer, each said body further comprising;

i. a main aperture positioned in the center of each said body;

ii. a plurality of radial channels, wherein each said radial channel extends from the radial exterior surface of said body to the radial interior surface of said body;

iii. a conductive assembly positioned in one of said radial channels, wherein a contact portion of said conductive assembly protrudes from said radial channel radially inward past said radial interior surface; and

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c. wherein each said body of said at least two bodies is adjacently positioned in one said annular groove within said retainer.

9. The multi-ring current diverter ring according to claim 7 wherein said plurality of radial channels is further defined as four radial channels.

10. The multi-ring current diverter ring according to claim 7 wherein said plurality of radial channels is further defined as five radial channels.

11. The multi-ring current diverter ring according to claim 7 wherein said plurality of radial channels is further defined as six radial channels.

13. The multi-ring current diverter ring to claim 9 wherein said plurality of radial channels is further defined as being equally spaced about said body.

14. The multi-ring current diverter ring according to claim 10 wherein said plurality of radial channels is further defined as being equally spaced about said body.

15. The multi-ring current diverter ring according to claim 11 wherein said plurality of radial channels is further defined as being equally spaced about said body.

16. The multi-ring current diverter ring according to claim 7 wherein said conductive assembly comprises a carbon-based filament.

18. The multi-ring current diverter ring according to claim 7 wherein said conductive assembly comprises a binder and a contact portion, and wherein said contact portion extends into said main aperture.

19. The multi-ring current diverter ring according to claim 7 wherein said body is further defined as being constructed of bronze.

20. A method of dissipating electrical current from a shaft, said method comprising the steps of:

a. mounting a multi-ring current diverter ring around a portion of said shaft, wherein said multi-ring current diverter comprises;

i. a retainer having a main aperture therein and having a substantially circular shape and having at least two annular groove formed therein;

ii. at least two bodies positioned adjacent each other, wherein each said body of said plurality is substantially circular shaped and sized to fit within said an annular groove positioned in said retainer, each said body further comprising;

1. a main aperture positioned in the center of each said body;

2. a plurality of radial channels, wherein each said radial channel extends from the radial exterior surface of said body to the radial interior surface of said body;

3. a conductive assembly positioned in one of said radial channels, wherein a contact portion of said conductive assembly protrudes from said radial channel radially inward past said radial interior surface, wherein each said body of said at least two bodies is adjacently positioned in one said annular groove within said retainer; and

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b. allowing said contact portion of said conductive assembly to contact said shaft such that electricity may flow from said shaft to said conductive assembly.