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Theft-deterrent device for use with theft-attractive articles

  • US 5,392,620 A
  • Filed: 08/31/1993
  • Issued: 02/28/1995
  • Est. Priority Date: 09/01/1992
  • Status: Expired due to Term
First Claim
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1. In a theft deterrent for use with theft-attractive articles or goods, comprising a first element (10) having an elongated connecting element (12) which projects from the first element (10) and which is intended to be inserted through an article to be protected, and a second element (14) which can be attached to said connecting element (12) and locked thereon against movement away from said first element (10) so as to hold the deterrent firmly on said article, the improvement wherein the second element (14) includes a casing (16) which houses a fragile marking-substance containing ampule (44) and a locking unit (18), wherein the locking unit (18) is intended to receive and lock the elongated connecting element (12) and to be brought into contact with the ampule when the connecting element is manipulated such as to cause the ampule to fracture and thus release the marking-substance contained therein.

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