Patent ID: 6374647
Filing Date: 2002-04-23
Classification: E05B,Y10S,Y10T

Abstract:
Anti-theft device for spectacle frames, comprising:a housing defining an opening therethrough that receives therein a bow of the spectacle frame; clamping means in the housing that fasten the housing to the bow; a rotatable operating member for operating the clamping means, the operating member being actuatable only with a special tool, the housing being dimensioned such that the spectacle frame may be tried on and the bow may be folded while the housing is fastened to the bow; and an alarm element that affects a magnetic, acoustic, or electromagnetic field; wherein: the housing comprises a projecting socket with the operating member disposed therein and accessible for operation with the special tool; the housing comprises two parts defined by a plane extending through the socket; the alarm element comprises a washer that keeps the two parts together, the washer defining an opening therein, the washer being disposed on the socket so as to receive the socket into the opening, the washer being locked against withdrawal from the socket.