Back to results
US 8,666,664 B2Granted
Electronic seal
AssigneeSyris Technology Corp.
InventorsChien-Sheng Chiu, Chin-Cheng Chen, Kuo-Liang Liao
Life of this patent
Estimating the term…
Abstract
An electronic seal of the present invention includes a bolt. The bolt is used to mount on a door latch of a cargo and inserts into a shell. The shell is provided with a control circuit to actively send a warning signal as the bolt is moved. As such, the user of the electronic seal can be properly informed to prevent theft.
Claims8
An electronic seal, comprising:
- a shell, defining a passage, the shell having a circuit board and a power supply disposed therein, the circuit board comprising at least one control circuit and at least three terminals, each of the terminals being electrically connected to the control circuit and extending into the passage;
- a bolt, comprising a rod portion, the rod portion having at least one conducting surface disposed around its outer surface, the rod portion being inserted into the passage and selectively engaged with the shell, the conducting surface being in contact with the terminals to define a conducting state, the conducting state varies as the rod portion sliding with respect to the passage, the control circuit sending a warning signal corresponding to a variation of the conducting state.
Dependencies are inferred from the claim text.