Theftproof device

Details Theftproof device Theftproof device

G - Physics

08

B

340/124.4

G08B 13/18 (2006.01) B62H 5/00 (2006.01) B62H 5/20 (2006.01) E05B 45/00 (2006.01)

Patent

CA 1182882

TITLE OF THE INVENTION THEFTPROOF DEVICE ABSTRACT OF THE DISCLOSURE A theftproof device comprising a flexible tying member, an optical fiber extending through the flexible tying member, a light emission element arranged opposite an end of the optical fiber, a light receiving element arranged opposite the other end of the optical fiber, a fixture fixed to an object to be protected from theft, an electrical circuit arranged within the fixture, mechanical connector means for mechanically connecting the flexible tying member to the fixture, and electrical connector means for electrically connecting the light emission element and the light receiving element to the electrical circuit. The elec- trical circuit is responsive to a change in a photo signal generated by the light emission element and transmitted through the optical fiber, for performing a warning function.

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