发明名称 Screw and screw driver
摘要 Various screws and corresponding screwdrivers are disclosed. For example, in one embodiment a screwdriver having a single, circular, non-axial pin is disclosed, and a corresponding screw having a single, circular, non-axial bore is disclosed. In another embodiment, a screwdriver (and corresponding screw) having a plurality of pins arranged asymmetrically about the central axis of the screwdriver is disclosed. In yet another embodiment, a screwdriver (and corresponding screw) having an irregularly-shaped and centrally-located pin is disclosed. Techniques for combining these and other features in various ways are also disclosed.
申请公布号 US2004221691(A1) 申请公布日期 2004.11.11
申请号 US20040864920 申请日期 2004.06.10
申请人 BELL JORY;PRICHARD MICHAEL;BETTS-LACROIX JONATHAN 发明人 BELL JORY;PRICHARD MICHAEL;BETTS-LACROIX JONATHAN
分类号 B25B13/02;B25B13/06;B25B13/48;F16B23/00;(IPC1-7):B25B13/56 主分类号 B25B13/02
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