Anti-theft electronic seal
US10580275B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Mar 13, 2018 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | Jun 8, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F3/0335
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A bolt includes a conductor having an accommodation hole and a circuit board installed in the accommodation hole, where the upper part of the conductor is covered with an insulating sleeve, and the lower part thereof is configured with a first engagement portion, a RFID chip and lower contact of the circuit board is formed into a control circuit, and the lower contact is allowed to be protruded out of the bottom end of the accommodation hole. An antenna and elastic sheet are configured inside the bolt seat, and the outer peripheral thereof is configured with an insertion hole and second engagement portion adapted to position the first engagement portion, the elastic sheet have a pre-pressure to allow the antenna, control circuit and conductor to be in electric connection with one another. Whereby, the electric connection can be interrupted when the bolt is cut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.