Security seal

Details Security seal Security seal

1992-02-28

1993-06-15

Moore, Richard E.

Closure fasteners

Seals

Encasing

247031, B65D 3334

Patent

active

052191940

ABSTRACT:
A security seal and method for detecting tampering. The security seal includes a first member, an adhesive layer applied to the first member, and an indicia printed directly on the adhesive layer in a desired detectable pattern. In one embodiment, the first member is adhered to the second member with the indicia detectable at least through the first member. With this arrangement, the pattern becomes detectably disrupted if the first and second members are moved relative to each other. In the preferred embodiment, both of the first and second members are part of a single transparent strip that can be looped through a shipping container locking mechanism and attached to prevent unauthorized access to the shipping container. In one form, tamper indicating tape is used to form the tamper indicating message "VOID" thereon if tampered with, thus giving a second visual indication of tampering. Heat sensitive material is used to prevent overcoming the tamper indicating tape by heating. A method embodying the present invention includes providing a strip with adhesive thereon, printing a disruptable pattern on the adhesive, adhering the strip to a surface by use of the adhesive, and inspecting same for tampering.

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Exhibits A1 and A2 are photographs of a known plastic security seal that can be formed into a loop.

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