Invention Grant
- Patent Title: Surveillance device
- Patent Title (中): 监控设备
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Application No.: US12681778Application Date: 2008-10-03
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Publication No.: US08698632B2Publication Date: 2014-04-15
- Inventor: Ulrich Zinner
- Applicant: Ulrich Zinner
- Applicant Address: ZA
- Assignee: Bell-Oak Investment (Pty) Ltd
- Current Assignee: Bell-Oak Investment (Pty) Ltd
- Current Assignee Address: ZA
- Agency: Hahn Moodley LLP
- Agent Vani Moodley, Esq.
- Priority: ZA2007/08504 20071004
- International Application: PCT/IB2008/054064 WO 20081003
- International Announcement: WO2009/044378 WO 20090409
- Main IPC: G08B13/14
- IPC: G08B13/14

Abstract:
An EAS tag (10) is provided, which includes a body (12) with an internal cavity (16), attachment means (14,26) for removably attaching the tag (10) to an article, an amorphous metal strip (48) inside the cavity (16) and a permanent magnet (34) inside the housing (12). The permanent magnet (34) is preferably an elongate rare earth magnet and is positioned generally equally far from the ends of the amorphous metal strip (48), preferably in a position spaced laterally from the amorphous strip (48) and generally parallel to the amorphous strip.
Public/Granted literature
- US20100219954A1 Surveillance Device Public/Granted day:2010-09-02
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