Fuel line systems with electric charge buildup prevention
US5973903A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1997 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Dec 12, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05F1/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Fuel lines aboard aircraft are safeguarded against buildup of electric charges. A series of metallic tubes each having opposite open metallic tube ends are prepared for such fuel lines. External metallic ferrules are prepared for the opposite metallic tube ends of these metallic tubes. Each of these metallic ferrules is equipped with an electric discharge terminal for electric charges. Each metallic ferrule is bonded externally to a metallic tube end so that each metallic ferrule and a margin of that metallic tube end extend in one piece circumferentially around an inside of that metallic tube end and axially in one piece for an axial width of that metallic ferrule. External electric conductors extend between electric discharge terminals of adjacent metallic ferrules along the fuel line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.