×

Package having opening detection

  • US 9,404,944 B2
  • Filed: 02/24/2011
  • Issued: 08/02/2016
  • Est. Priority Date: 03/15/2010
  • Status: Active Grant
First Claim
Patent Images

1. A box comprising at least one portion that is closed by a movable cover and that contains an electronic detection circuit for detecting opening of the cover, the cover being provided with means for locking it in the closed position, said means comprising a screw that is mounted on the cover to pivot between a locking position and an unlocking position, and having an end provided with at least one tooth for meshing with teeth of a code wheel mounted to pivot in register with pads of the detection circuit, wherein the screw is not coaxial with the code wheel and is mounted on a pin with radial clearance so that said end of the screw presents positioning relative to the box with the radial clearance allowing a variation of the radial distance between said end of the screw and the code wheel so that the pivoting of the code wheel has an amplitude that depends on the radial distance between said end of the screw and the code wheel, wherein a gap is provided between an inner circumferential surface of the screw and an outer circumferential surface of the pin such that the variation of the radial distance between the end of the screw and the code wheel is resulted from the gap between the inner circumferential surface of the screw and the outer circumferential surface of the pin.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×