Frangible electronic sealing security system
US7595727B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2003 |
| Grant date | Sep 29, 2009 |
| Priority date | — |
| Expiry date | Feb 21, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/07798
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for inspecting a secure enclosure from a remote location to determine whether a secure enclosure door has been opened includes a seal having a base material and an indicator. The base material is bonded across first and second secure enclosure surfaces that must move relative to each other when the secure enclosure door opens. The indicator includes an indicator component that is coupled to the base material to deform in response to a relative movement between the first and second secure enclosure surfaces. The indicator provides a first indication prior to deformation of the indicator component and a second indication after deformation. Indicator components can include an impedance element, a piezoelectric material, volatile memory, a transmitter assembly component or a bar code. A monitor (e.g. RF signal receiver or a bar code reader) receives the indication and determines whether the secure enclosure door has been opened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.