Electronic seal

Details Electronic seal Electronic seal

1991-06-06

1993-02-23

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

340540, 340555, 340568, 340652, 368 10, 368 11, G08B 1306

Patent

active

051893967

ABSTRACT:
An electronic seal for a casing records the time of changes in the seal state. A sealing strip is fixed in the casing and is formed as a safety loop. A monitoring device is located in the casing and attached to the sealing strip. The monitoring device generates time values which are recorded when changes in the seal state occur.

REFERENCES:
patent: 4234875 (1980-11-01), Williams
patent: 4262284 (1981-04-01), Stieff et al.
patent: 4797663 (1989-01-01), Rios

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