Electronic seal, methods and security system
US6420971B1 · kind B1 · utility
194Cited by
9References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2000 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Jun 22, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electronic seal (2) is disclosed which comprises a housing (4,104) and a closure member co-operable with the housing to form a seal. The closure member may for example take the form of an elongate member (6, 106) connectable at both of its ends to the housing. The closure comprises an outer portion (8, 108) surrounding a core (10, 10A, 110). A sensor assembly (14, 16, 135, 136) is provided for sensing integrity of the core. Hence tampering with the seal can be detected. The core may be formed as a fiber optic cable (10, 10A with an integrity sensor comprising an optical source 14 and an optical detector 16.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.