| 摘要 |
<p>A security seal (10, 14 and 10a, 14a) includes a first locking member (16) having a first detection circuit (18) and a second locking member (20) having a second detection circuit (22). The first locking member (16) is engageable to the second locking member (20) to be locked together as the security seal (10, 14 and 10a, 14a). Engagement of the first locking member (18) to the second locking member (20) electrically connects the first and second detection circuits (18, 22) to provide a combined detection circuit throughout the security seal. Breaking of the security seal (10, 14 and 10a, 14a) will break the electrical continuity of the combined detection circuit portions (18, 22), which continuity is checked for evidence of tampering. In an alternative embodiment, a conductive strip (190) is embedded within an elongated stem (186) extending from the first locking member (16). The stem (186) is engageable with the second locking member (212, 214) to form the security seal (180, 200). Contact points (74, 76 and 194, 196) allow testing the continuity of the detection circuit (18, 22) or the conductive strip (190) as evidence of tampering.</p> |
