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US 4,502,092 AGranted
Integral lightning protection system for composite aircraft skins
AssigneeThe Boeing Company
InventorsEngbert T. Bannink, Jr., Glenn O. Olson
Life of this patent
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Abstract
Method and structures for enhancing the conductivity of graphite composite materials for lightning protection and prevention of attachment of lightning to fasteners. The integral lightning protection for composite aircraft skins, including skins with fasteners penetrating into fuel tanks, utilizes metal coated or plated graphite fibers which are woven into the outer layer of tape or fabric of the structural component requiring protection.
Claims6
In combination:
- an integral lightning protection system for an aircraft graphite epoxy structure having a fastener inserted therein;
- an electrically conductive substructural member for supporting said aircraft graphite epoxy structure;
- and,
- electrically non-conductive means coupled between said fastener and said electrically conductive substructural member.
1 more element
Dependencies are inferred from the claim text.