Self-monitoring seal
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United States of America Patent
Stats
-
Apr 14, 1981
Grant Date -
N/A
app pub date -
Jun 26, 1978
filing date -
Jun 26, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Self-monitoring seals have ends of fiber optic bundle loops mounted in stressed tamper resistant containers. A battery operates microelectronics to change a display in predetermined sequence. Tampering with the container or interrupting or changing the light transmission through the fiber optic bundle disrupts the predetermined display sequence.
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Family
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Cited Art Landscape
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