IP Library Granted Patent US 8,998,124
Granted Patent B2
US 8,998,124 · App. 13/789,269 · Granted Apr 7, 2015

Aircraft with electrically conductive nanocoating

Inventors: Daniel P. Sottiaux (Flower Mound, TX); Hunter Davis (Arlington, TX)
Assignee: Bell Helicopter Textron Inc.
H01B5/14B64D45/02B64C27/35C09D5/24H05K9/0079
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Quick Facts
Patent No.
US 8,998,124
App. No.
13/789,269
Granted
Apr 7, 2015
Kind
B2
Abstract

A device has a first electrically conductive component, a second electrically conductive component, and an electrically conductive nanocoating (ECN) electrically connecting the first electrically conductive component to the second electrically conductive component. An aircraft has an engine, a fuselage, and a device having a first electrically conductive component, a second electrically conductive component, and an electrically conductive nanocoating (ECN) electrically connecting the first electrically conductive component to the second electrically conductive component. A method of providing an electrical conduction path includes providing a first electrically conductive component, providing a second electrically conductive component, and decreasing an electrical resistance between the first electrically conductive component and the second electrically conductive component using an electrically conductive nanocoating (ECN).

Claims (42)

1. A device, comprising:

a first electrically conductive component;

a second electrically conductive component;

an electrically insulative component disposed directly between the first electrically conductive component and the second electrically conductive component, the electrically insulative component to elastically deform in response to an applied force; and

an electrically conductive nanocoating (ECN) disposed on the electrically insulative component and electrically connecting the first electrically conductive component to the second electrically conductive component, the ECN to elastically deform with the electrically insulative component, wherein the nanocoating is a coating comprising at least one of:

(1) a thickness comprising a dimension between 0.1 nanometers to 200 nanometers; and

(2) constituent particles comprising a dimension between 0.1 nanometers to 200 nanometers;

wherein the ECN is configured to maintain electrical connection while elastically deforming with the electrically insulative component.

2. The device of claim 1 , wherein at least one of the first electrically conductive component and the second electrically conductive component comprises a component of a bearing.

3. The device of claim 1 , wherein the ECN is disposed on the first electrically conductive component and the second electrically conductive component.

4. The device of claim 1 , wherein the ECN comprises a paint configured for application without the need for a primer.

5. The device of claim 1 , wherein the ECN is substantially transparent.

6. The device of claim 1 , wherein the constituent particles of the ECN maintains electrical conductivity of the ECN based on a critical path distance between the constituent particles while the ECN elastically deforms along with the electrically insulative component.

7. The device of claim 1 , wherein the thickness of the nanocoating at a flexure location of the electrically insulative component is based on a degree of flexure of the electrically insulative component at the flexure location.

8. The device of claim 1 , wherein the ECN is disposed on an entire exterior of the electrically insulative component between the first electrically conductive component and the second electrically conductive component.

9. The device of claim 1 , wherein the ECN is disposed on the electrically insulative component in conductive path strips between the first electrically conductive component and the second electrically conductive component.

10. An aircraft, comprising:

an engine;

a fuselage; and

a device, comprising:

a first electrically conductive component;

a second electrically conductive component;

an electrically insulative component disposed directly between the first electrically conductive component and the second electrically conductive component, the electrically insulative component to elastically deform in response to an applied force; and

an electrically conductive nanocoating (ECN) disposed on the electrically insulative component and electrically connecting the first electrically conductive component to the second electrically conductive component, the ECN to elastically deform with the electrically insulative component, wherein the nanocoating is a coating comprising at least one of:

(1) a thickness comprising a dimension between 0.1 nanometers to 200 nanometers; and

(2) constituent particles comprising a dimension between 0.1 nanometers to 200 nanometers;

wherein the ECN is configured to maintain electrical connection while elastically deforming with the electrically insulative component.

11. The aircraft of claim 10 , wherein the aircraft comprises a helicopter.

12. The aircraft of claim 10 , wherein the device comprises a centrifugal force bearing.

13. The aircraft of claim 10 , wherein the device comprises a shear bearing.

14. The aircraft of claim 10 , wherein the constituent particles of the ECN maintains electrical conductivity of the ECN based on a critical path distance between the constituent particles while the ECN elastically deforms along with the electrically insulative component.

15. The aircraft of claim 10 , wherein the thickness of the nanocoating at a flexure location of the electrically insulative component is based on a degree of flexure of the electrically insulative component at the flexure location.

16. A method of providing an electrical conduction path, comprising:

providing a first electrically conductive component;

providing a second electrically conductive component;

providing an electrically insualtive component comprising an elastomeric element configured to elastically deform in response to an applied force;

disposing the electrically insulative component between the first electrically conductive component and the second electrically conductive component;

decreasing an electrical resistance between the first electrically conductive component and the second electrically conductive component using an electrically conductive nanocoating (ECN), wherein the nanocoating is a coating comprising at least one of:

(1) a thickness comprising a dimension between 0.1 nanometers to 200 nanometers; and

(2) constituent particles comprising a dimension between 0.1 nanometers to 200 nanometers; and

disposing the ECN on the electrically insulative component, wherein the ECN on the elastomeric element of the electrically insulative component is configured to elastically deform with the elastomeric element and maintain electrical connection while elastically deforming along with the elastomeric element.

17. The method of claim 16 , wherein at least one of the first electrically conductive component and the second electrically conductive component comprises a component of a bearing.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 18, 2022
From: BELL HELICOPTER TEXTRON INC.
To: TEXTRON INNOVATIONS INC.
Reel/Frame 058681/0257 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 8, 2013
From: SOTTIAUX, DANIEL P.; DAVIS, HUNTER
To: BELL HELICOPTER TEXTRON INC.
Reel/Frame 029954/0799 →
Continuity (1)
Related Publication 20140252164A1 · Sep 11, 2014