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    Electromagnetic indicator
    1.
    发明授权
    Electromagnetic indicator 失效

    公开(公告)号：US4132986A

    公开(公告)日：1979-01-02

    申请号：US823169

    申请日：1977-08-09

    申请人： Robert D. Hart ,  Robert Mazzamauro

    发明人： Robert D. Hart ,  Robert Mazzamauro

    IPC分类号： G08B5/30 ,  G08B5/22

    CPC分类号： G08B5/30

    摘要： An indicator flag is movable alternately into one of a plurality of display positions thereby to provide a distinguishable visual indication in each position. The indicator flag carried by a movable assembly is actuated by electromagnetic means and the movable assembly is latched in each display position. A pair of switches are associated with and controlled by the movable assembly from a normally closed to an open condition. The switches may function variously to control associated equipment or switch the electromagnetic means so that drive energy is required only during transition of the indicator flag from one of the plurality of display positions to another, among others.

    Bistable position indicating device
    2.
    发明授权
    Bistable position indicating device 失效
    双稳位置指示装置

    公开(公告)号：US4047137A

    公开(公告)日：1977-09-06

    申请号：US665408

    申请日：1976-03-10

    申请人： Birger Widen

    发明人： Birger Widen

    IPC分类号： G09F11/23 ,  G08B5/30 ,  G09F9/37 ,  H01F7/08

    CPC分类号： G09F9/375 ,  G08B5/30

    摘要： A bistable position indicating device comprising a fixed and a movable part, the latter being provided with two portions having different colors and arranged to be switched to one or the other color portion position by means of coaction between a permanent magnet and an electromagnet having mutually setable positions. The movable part comprises an elongate body such as a cylinder, which has its envelope surface axially divided into said two portions of different colors, and is turnably arranged about its central axis. The electromagnet is provided with pole shoes arranged to meet the poles of the permanent magnet, both the magnets being, on the application of a current pulse to the electromagnet coil, through coaction between the fields of the magnet and the coil, turned in relation to each other so that the movable part is turned through an angle less than 180.degree., particularly mainly 180.degree., and is reset from one color position to the other and vice versa.

    摘要翻译： 双稳态位置指示装置，包括固定和可移动部分，后者具有不同颜色的两个部分，并且通过永磁体和具有相互可设定的电磁体之间的共同作用而被设置成切换到一个或另一个颜色部位 职位 可移动部分包括诸如圆柱体的细长主体，其具有轴向分成所述两个不同颜色部分的包络面，并且围绕其中心轴线可转动地布置。 电磁铁具有设置成与永久磁体的极相接的极靴，两个磁体在电磁脉冲施加电磁线圈时，通过磁体和线圈的磁场之间的相互作用而相对于 使得可动部分转动角度小于180度，特别是180度的角度，并从一个颜色位置复位到另一个颜色位置，反之亦然。