IP Library › Granted Patent US 12,129,046
Granted Patent B2
US 12,129,046 · App. 16/866,834 · Granted Oct 29, 2024

Passive lightning protection systems and methods

Inventor: Phalgun Madhusudan (Urbana, IL)
Assignee: Textron Innovations Inc.
B64D45/02B32B37/12B64C1/12C09D5/24C09K3/16B32B2037/243B32B2305/38B32B2311/00
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Quick Facts
Patent No.
US 12,129,046
App. No.
16/866,834
Granted
Oct 29, 2024
Kind
B2
Abstract

According to one implementation of the present disclosure, a method is disclosed. The method includes forming one or more aircraft surfaces from at least one of one or more metal materials or metal composite materials; and forming a surface coating, at least partially covering the one or more aircraft surfaces, with one or more materials above a dielectric strength threshold.

Claims (24)

1. A method comprising:

forming one or more aircraft surfaces;

at least partially coating one or more metal meshes with one or more metal oxide materials on the one or more aircraft surfaces in a conductive path; and

adjoining the one or more at least partially coated metal meshes to the one or more aircraft surfaces,

wherein the one or more metal oxide materials form into varistors.

2. The method of claim 1 , wherein adjoining the one or more at least partially coated metal meshes comprise: bonding the one or more metal oxide materials to the one or more metal meshes.

3. The method of claim 1 , wherein adjoining the one or more metal meshes comprise: partially embedding the one or more at least partially coated metal meshes to the one or more aircraft surfaces.

4. The method of claim 1 , wherein adjoining the one or more metal meshes comprise: affixing the one or more at least partially coated metal meshes on to the one or more aircraft surfaces.

5. The method of claim 1 , wherein the one or more aircraft surfaces are determined to be in a lightning zone, wherein the lightning zone comprises regions of the aircraft surfaces significantly above a predetermined leader attachment threshold.

6. The method of claim 1 , wherein the one or more aircraft surfaces comprise metal composite materials.

7. The method of claim 1 , wherein the varistors comprise one or more voltage dependent resistors.

8. The method of claim 7 , wherein the voltage dependent resistors comprise zinc-oxide.

9. The method of claim 1 , wherein the one or more metal oxide materials are configured as either insulators or conductors based on an electric field threshold.

10. A method of energy attenuation of an aircraft surface, comprising:

at least partially coating one or more metal meshes with one or more materials, forming a varistor layer on the one or more metal meshes; and

providing one or more aircraft surfaces coupled to the one or more at least partially coated metal meshes, wherein current is conducted from the varistor layer to the one or more at least partially coated metal meshes.

11. The method of claim 10 , wherein providing the one or more aircraft surfaces coupled to the one or more at least partially coated metal meshes comprises bonding one or more metal oxide materials to the one or more metal meshes.

12. The method of claim 10 , wherein providing the one or more aircraft surfaces coupled to the one or more at least partially coated metal meshes comprises partially embedding the one or more at least partially coated metal meshes to the one or more aircraft surfaces.

13. The method of claim 10 , wherein providing the one or more aircraft surfaces coupled to the one or more at least partially coated metal meshes comprises affixing the one or more at least partially coated metal meshes on to the one or more aircraft surfaces.

14. The method of claim 10 , wherein the one or more aircraft surfaces are determined to be in a lightning zone, wherein the lightning zone comprises regions of the aircraft surfaces significantly above a predetermined leader attachment threshold.

15. The method of claim 10 , wherein the one or more aircraft surfaces comprise metal composite materials.

16. The method of claim 10 , wherein the varistor layer comprises one or more voltage dependent resistors.

17. The method of claim 16 , wherein the one or more voltage dependent resistors comprise zinc-oxide.

18. The method of claim 10 , wherein the one or more materials are configured as either insulators or conductors based on an electric field threshold.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 23, 2024
From: BELL TEXTRON INC.
To: TEXTRON INNOVATIONS INC.
Reel/Frame 068053/0905 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 5, 2020
From: MADHUSUDAN, PHALGUN
To: BELL TEXTRON INC.
Reel/Frame 052573/0798 →
Continuity (1)
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