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Reusable, tamper-indicating seal

  • US 4,118,057 A
  • Filed: 02/24/1978
  • Issued: 10/03/1978
  • Est. Priority Date: 02/24/1978
  • Status: Expired due to Term
First Claim
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1. A tamper-indicating seal comprising a large plurality of small colored balls of different colors confined therein, means for locking a wire loop in the seal, means for segregating a small plurality of said small colored balls in the seal in a location visible from outside the seal and maintaining them in position when the wire loop is locked within the seal and means for removing the balls from the segregated location when the seal is opened and for mixing the balls whereby a different pattern of balls appears in the segregated location the next time the seal is locked.

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