Electromagnetic radiation seal for a member penetrating a shielded enclosure
US6501017B2 · kind B2 · utility
2Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 7, 2000 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Dec 7, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K9/0001
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electromagnetic radiation seal, particularly adapted for sealing a rotary or linearly movable shaft penetrating a shielded enclosure includes a housing mountable on an enclosure wall and forming a cavity delimited by the housing and the shaft and which is filled with metal particulates, such as tungsten or lead shot pellets. The metal particulates are in intimate contact with the shaft and with the seal housing to prevent transmission of electromagnetic radiation between the interior and exterior of the enclosure at the penetration formed by the shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.