Permanent magnet assembly for stably fixing denture
    1.
    发明授权
    Permanent magnet assembly for stably fixing denture 失效
    用于稳定固定义齿的永磁体组件

    公开(公告)号:US5337033A

    公开(公告)日:1994-08-09

    申请号:US820415

    申请日:1992-01-15

    IPC分类号: A61C13/235 H01F7/02

    CPC分类号: A61C13/235

    摘要: A permanent magnet assembly for stably fixing a denture comprising a permanent magnet, a casing made of a corrosion-resistant, magnetic material having a cavity for receiving the permanent magnet, and a seal plate for covering an opening of the casing to prevent the permanent magnet from exposing outside, the seal plate consisting of a seal ring member made of a corrosion-resistant, non-magnetic material and a disc plate made of a corrosion-resistant, soft-magnetic material and having substantially the same outer diameter as the inner diameter of the seal ring member, the seal ring member and the disc plate being concentrically arranged in the same plane, the disc plate being welded to the seal ring member in their abutment, and the seal ring member being welded to the casing. Laser welding is utilized.

    摘要翻译: 一种用于稳定地固定义齿的永磁体组件,包括永磁体,由具有用于接收永磁体的空腔的耐腐蚀磁性材料制成的壳体,以及用于覆盖壳体的开口以防止永磁体的密封板 由外露露出的由耐腐蚀非磁性材料制成的密封环构件的密封板和由耐腐蚀的软磁材料制成并具有与内径基本相同的外径的盘片 的密封环构件,密封环构件和盘片同心地布置在同一平面中,盘片在邻接处焊接到密封环构件,并且密封环构件焊接到壳体。 使用激光焊接。

    Permanent magnet assembly, keeper and magnetic attachment for denture
supporting
    2.
    发明授权
    Permanent magnet assembly, keeper and magnetic attachment for denture supporting 失效
    永磁体组件,保持器和磁性附件用于义齿支撑

    公开(公告)号:US5788493A

    公开(公告)日:1998-08-04

    申请号:US619619

    申请日:1996-03-13

    IPC分类号: A61C8/00 A61C13/235

    摘要: The invention relates to denture-supporting permanent magnet assemblies each using a magnetic attractive force, and provides denture-supporting permanent magnet assemblies, denture-supporting keepers, and denture-supporting magnetic attachments each of which uses a magnetic material with a high saturation magnetic flux density, i.e., a magnetic material comprising 15.5-18.5 wt % Cr and balance Fe as magnetic materials used for the permanent magnet assembly and the keeper in order to provide a magnetic attachment which keeps an excellent attractive force even if miniaturized. Also disclosed are denture-supporting permanent magnet assemblies, denture-supporting keepers, and denture-supporting magnetic attachments in which a coating layer of Ti or a Ti compound is formed on the surface of each of the permanent magnet assemblies and denture-supporting keepers in order to enhance the safety of each magnetic attachment by means of raising the corrosion resistance while maintaining a practically sufficient attractive force.

    摘要翻译: PCT No.PCT / JP95 / 01404 Sec。 371日期:1996年3月13日 102(e)日期1996年3月13日PCT提交1995年7月14日PCT公布。 公开号WO96 / 02206 日期1996年2月1日本发明涉及各自使用磁吸引力的假牙支撑永磁体组件,并且提供义齿支撑永磁体组件,义齿支撑保持器和义齿支撑磁性附件,每个使用磁性材料 高饱和磁通密度,即包含15.5-18.5重量%Cr的磁性材料和用作永磁体组件和保持器的磁性材料的余量Fe,以提供即使小型化也保持优良吸引力的磁性附着 。 还公开了假牙支撑永磁体组件,义齿支撑保持器和义齿支撑磁性附件,其中在每个永磁体组件和义齿支撑保持器的表面上形成Ti或Ti化合物的涂层 为了通过提高耐腐蚀性同时保持实际上足够的吸引力来增强每个磁性附件的安全性。

    Magnetic direction sensor
    3.
    发明授权
    Magnetic direction sensor 失效
    磁方向传感器

    公开(公告)号:US4616424A

    公开(公告)日:1986-10-14

    申请号:US775412

    申请日:1985-09-12

    IPC分类号: G01C17/30

    CPC分类号: G01C17/30

    摘要: A magnetic direction sensor having a head constituted by a magnetic wound core composed of a ferromagnetic metal ribbon; a winding for exciting the magnetic wound core; a first output winding wound around the core such that it encircles two opposite portions of the core and a second output winding wound around the core at a certain angle with the first output winding such that it encircles two other opposite portions of the core; the first and second output windings providing output signals for determining the direction of the external magnetic field with respect to the head, and the inner and outer ends of the ribbon overlapping each other circumferentially by a certain angle .theta. may be between 0.5 and .theta..sub.max satisfying the equation: .theta..sub.max =1/4D+1.5.alpha.+1 wherein D represents the outer diameter of the core and .theta. represents a desired direction accuracy. This structure of the sensor head enables it to obtain a high direction accuracy.

    摘要翻译: 一种磁性方向传感器,其具有由铁磁金属带构成的磁性卷芯, 用于激励磁性卷芯的绕组; 卷绕在所述芯上的第一输出绕组,使得其围绕所述芯的两个相对部分,并且所述第二输出绕组围绕所述芯以与所述第一输出绕组成一定角度缠绕,使得其围绕所述芯的两个其它相对部分; 第一和第二输出绕组提供用于确定外部磁场相对于磁头的方向的输出信号,并且沿周向相互重叠一定角度θ的磁带的内端和外端可以在0.5和θmax之间满足 方程式:θmax = 1 / 4D +1.5α+ 1其中D表示芯的外径,θ表示期望的方向精度。 传感器头的这种结构使其能够获得高方向精度。

    Head for wire dot printer
    4.
    发明授权
    Head for wire dot printer 失效
    头线打印机

    公开(公告)号:US4626116A

    公开(公告)日:1986-12-02

    申请号:US708524

    申请日:1985-03-05

    CPC分类号: B41J2/275 C22C38/22

    摘要: A wire dot printer head comprising a leaf spring welded to an armature and biased by a permanent magnet, and a magnetic coil adapted to erase the magnetic field of the permanent magnet so as to release the leaf spring and to drive a print wire. The leaf spring is made of an alloy which consists essentially of 13-14 wt % Cr, 0.37-0.43 wt % C, 0.25-0.5 wt % Si, 0.3-0.5 wt % Mn, 1.15-1.35 wt % Mo and the balance Fe. The alloy makes the width of the weld metal of the leaf spring wide and its depth of weld penetration deep and thus minimizes the generation of micro-cracking.

    摘要翻译: 一种线点打印头,包括焊接到电枢并被永磁体偏压的板簧,以及适于消除永磁体的磁场以释放片簧并驱动印刷线的磁线圈。 板簧由合金制成,其基本上由13-14重量%的Cr,0.37-0.43重量%的C,0.25-0.5重量%的Si,0.3-0.5重量%的Mn,1.15-1.35重量%的Mo构成,余量为Fe 。 该合金使得板簧的焊接金属的宽度变宽,并且其焊接深度深入深处,从而使微裂纹的产生最小化。