发明名称 Apparatus and Method for Magnetizing a Dart
摘要 An apparatus and method for magnetizing a dart, comprise the steps of: A. preparing a temporarily magnetizable dart; B. charging the dart with a magnet charger; and C. throwing dart and scoring. Through the abovementioned steps, the magnetizing coil or permanent magnet serves as a magnet charger to magnetize the dart, and the magnetic induction material of the dart will produce a temporary magnetic force. The temporary magnetic force of the dart can cooperate with the magnetic induction scoring dartboard to automatically create a score, and the temporary magnetism will disappear within a predetermined period of time. Therefore, the dart is suitable for use in a formal dart competition, and the user doesn't have to worry about the adverse effect of the magnetic force.
申请公布号 US2007087873(A1) 申请公布日期 2007.04.19
申请号 US20060538463 申请日期 2006.10.04
申请人 YIU CHIH-HAO 发明人 YIU CHIH-HAO
分类号 A63B65/02 主分类号 A63B65/02
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