Installation of lightning protection from one side

JP7664704B2Active Publication Date: 2025-04-18THE BOEING CO
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Patent Information

Application Number
JP2021001885
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-01-13
Filing Date
2021-01-08
Publication Date
2025-04-18
Estimated Expiration
2041-01-08

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Abstract

To provide a structural fastener which provides resistance to occurrence of internal structural damage to an aircraft from electromagnetic effect (EME) of a lightning strike.SOLUTION: A fastener assembly includes a bolt having a head and having a shank. The shank defines threads, the bolt defines a channel which extends circumferentially about the bolt, and the head defines multiple head channels each having a first end in communication with the channel and a second end in communication with an outside of the head positioned at a top surface of the head. The fastener assembly further includes a sleeve having threads compatible for engaging the threads of the bolt. The sleeve includes a portion of the sleeve including an annealed material and multiple slots defined through the sleeve. With the bolt positioned within the sleeve, each of the multiple slots defined through the sleeve is positioned in communication with the channel.SELECTED DRAWING: Figure 5
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Citation Information

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