Fastening assembly including washer for sealing the assembly for lightning strike protection in composite structures
US7936550B2 · kind B2 · utility
18Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2010 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Jul 12, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49947
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fastening assembly for a composite structure including a washer sealing the assembly for internal lightning strike protection. The washer includes one or more concentric ribs that are dielectric rings on both sides. When used (e.g., with a nut and bolt) internal to a structure, especially a composite structure, the washer seals the fastener hole (i.e., that the bolt passes through) and contains any sparking and hot gasses that may arise in the fastener hole from entering the structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.