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U.S. Department of Energy
Office of Scientific and Technical Information

Security seal. [Patent application]

Patent ·
OSTI ID:5096064
Security for a package or verifying seal in plastic material is provided by a print seal with unique thermally produced imprints in the plastic. If tampering is attempted, the material is irreparably damaged and thus detectable. The pattern of the imprints, similar to fingerprints are recorded as a positive identification for the seal, and corresponding recordings made to allow comparison. The integrity of the seal is proved by the comparison of imprint identification records made by laser beam projection.
DOE Contract Number:
AC04-76DP00789
Assignee:
Dept. of Energy
Patent Number(s):
None
Application Number:
ON: DE82020867
OSTI ID:
5096064
Country of Publication:
United States
Language:
English