Tamper-proof enclosure for a circuit card
US6970360B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 18, 2004 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | Jun 22, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49171
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A tamper-proof enclosure for an electrical card, such as a high speed communications card, includes an enclosure in which the card is mounted. The enclosure has a wall with an opening, and a cup member is attached to the wall at the opening. A bus that is connected to the card extends through a passage in the cup member and through the opening in the wall. A security mesh is wrapped around the enclosure. The cup member is filled with liquid resin, which is also coated onto the security mesh. After the resin is cured, the resin in the cup member forms a plug that seals the security mesh from inner pressure when the enclosure is heated to an elevated temperature. The resin is preferably polyamide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.