Please download the dossier by clicking on the dossier button x
×

Tamper proof closures

  • US 6,592,034 B1
  • Filed: 12/29/2000
  • Issued: 07/15/2003
  • Est. Priority Date: 05/07/1998
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of detecting tampering with a cylindrical article closure, the method comprising the steps:

  • providing the cylindrical closure with at least one magnetic member;

    providing the at least one magnetic member with a magnetic field;

    opening the closure at least partially;

    disturbing the magnetic member of the closure when the closure is opened, wherein disturbing the magnetic member subjects the magnetic field of the magnetic member to a change resulting from a changed interaction between respective parts of the disturbed magnetic member, and detecting the change in the magnetic field by remote magnetic sensing.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×