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Cloth product having an antitheft device and method of making same

  • US 4,626,311 A
  • Filed: 02/23/1984
  • Issued: 12/02/1986
  • Est. Priority Date: 02/23/1984
  • Status: Expired due to Fees
First Claim
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1. In a method of making a cloth product having an antitheft device attached thereto, said method comprising the steps of, providing means attaching said device to a cloth product, providing means in said device capable of interrupting a magnetic sensing field upon passing said product with its attached device through said field, said step of providing means capable of interrupting said sensing field comprises providing an inner member made of a magnetically detectable material, the improvement in said method in which said step of providing means attaching said device to said cloth product comprises the steps of encapsulating said inner member with a dual-purpose cover member made of a thermoplastic material, said cover member having a surface portion, and permanently attaching said device to said product by fusion of substantially the entire area of said surface portion to a particular part of said product which has interstices therein, said fusion resulting in the thermoplastic material of said cover member being partially moved within said interstices to provide a tenacious bond between said part and said surface portion and thereby require substantial damage to said part in order to remove said device from said product.

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