Multiple transponder seal device
US7270353B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2004 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Feb 16, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/51
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a seal device, including a locking pin and a sleeve, the locking pin having a head and a stem having a groove which interacts with a locking ring disposed in the sleeve to lock the sleeve onto the pin by insertion. The sleeve also includes a first transponder housed in the upper portion of the sleeve at a depth that is greater than the height of the stem and the locking pin also comprises a second transponder disposed on the outer periphery of the stem. Each transponder includes storage means for storing at least one unique identification code. Thus, any unauthorized handling of the seal device may be detected even if the latter is completely replaced after breakage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.