Lightning protection layer for fiber composite structures

US9809324B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9809324-B2
Application numberUS-201514816025-A
CountryUS
Kind codeB2
Filing dateAug 2, 2015
Priority dateAug 1, 2014
Publication dateNov 7, 2017
Grant dateNov 7, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Specified is a lightning protection layer for an aircraft. The lightning protection layer has a first stratum and a second stratum. The second stratum is coupled to the first stratum along a connecting surface. The first stratum has a metal foil and the second stratum has carbon allotropes. It is thus made possible that damage to a structure of the aircraft by lightning strike is reduced.

First claim

Opening claim text (preview).

What is claimed is: 1. A lightning protection layer for an aircraft, comprising: a first stratum; a second stratum, which is coupled with the first stratum along a connecting surface; and a third stratum which is arranged such that the first stratum is disposed between the second stratum and the third stratum, wherein the first stratum has a metal foil, wherein the second stratum has at least one two-dimensional flat graphene later, wherein the third stratum has at least one two-dimensional flat graphene layer. 2. The lightning protection layer according to claim 1 , wherein the metal foil is an expanded copper foil. 3. The lightning protection layer according to claim 1 , wherein the second stratum has more than ten graphene layers. 4. The lightning protection layer according to claim 1 , wherein the carbon allotropes of the third stratum are executed as at least one two-dimensional reticular graphene layer. 5. The lightning protection layer according to claim 4 , wherein the third stratum has more than ten graphene layers. 6. The lightning protection layer according to claim 1 , further having a fourth stratum which is disposed such that the second stratum is disposed between the first stratum and the fourth stratum; wherein the fourth stratum is provided with conductive elements. 7. The lightning protection layer according to claim 6 , wherein the electrically conductive elements are carbon allotropes. 8. The lightning protection layer according to claim 6 , wherein the carbon allotropes of the fourth stratum are carbon nanotubes. 9. The lightning protection layer according to claim 6 , wherein the fourth stratum is a coating layer, which is admixed with electrically conductive elements. 10. The lightning protection layer according to claim 6 , wherein the fourth stratum is admixed with electrically conductive elements such that the percolation threshold is not met. 11. An aircraft with a lightning protection layer, wherein the lightning protection layer comprises: a first stratum; a second stratum, which is coupled with the first stratum along a connecting surface; a third stratum which is arranged such that the first stratum is disposed between the second stratum and the third stratum, wherein the first stratum has a metal foil, wherein the second stratum has at least one two-dimensional flat graphene layer, wherein the third stratum has at least one two-dimensional flat graphene layer, wherein the lightning protection layer extends at least along a part of an outer surface of the aircraft. 12. The aircraft according to claim 11 , wherein the lightning protection layer is disposed such that the first stratum is disposed between the second stratum and an inner space of the aircraft. 13. The aircraft according to claim 11 , wherein the lightning protection layer extends along the entire outer surface of the aircraft.

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Frequently asked questions

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What does patent US9809324B2 cover?
Specified is a lightning protection layer for an aircraft. The lightning protection layer has a first stratum and a second stratum. The second stratum is coupled to the first stratum along a connecting surface. The first stratum has a metal foil and the second stratum has carbon allotropes. It is thus made possible that damage to a structure of the aircraft by lightning strike is reduced.
Who is the assignee on this patent?
Airbus Defence & Space Gmbh
What technology area does this patent fall under?
Primary CPC classification B64D45/02. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Nov 07 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).