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    Torque determining allen screw
    16.
    发明授权
    Torque determining allen screw 失效
    扭矩确定螺丝

    公开(公告)号：US3865007A

    公开(公告)日：1975-02-11

    申请号：US38416573

    申请日：1973-07-30

    Applicant: SQUARE D CO

    Inventor： STANBACK HARRIS I

    IPC: F16B23/00 ,  F16B31/02 ,  F16B33/04 ,  H01R4/36 ,  H01R11/12

    CPC classification number: H01R4/36 ,  F16B23/0007 ,  F16B31/02 ,  H01R11/12

    Abstract: The screw has a tool-receiving recess comprising a basically cylindrical outer recessed portion and a hexagonal inner recessed portion. The outer recessed portion has a plurality of nubs or protrusions spaced circumferentially around its cylindrical wall. A conventional hexagonal allen wrench inserted in the outer recessed portion is used to tighten the screw by engagement with the nubs. The nubs are designed so that they will be sheared by the wrench when a predetermined torque is exerted by the wrench. The screw can be loosened by the wrench when the wrench is received in the inner recessed portion. In one embodiment, the wrench can be inserted in the inner recessed portion before the nubs are sheared; in a second embodiment, shearing of the nubs is necessary before the wrench can be inserted in the inner recessed portion.

    Abstract translation: 螺杆具有包括基本上圆筒形的外凹部和六边形内凹部的工具容纳凹部。 外凹部具有围绕其圆筒壁周向间隔开的多个凸起或凸起。 插入外凹部的常规六角扳手用于通过与凸块接合来拧紧螺钉。 该凸块被设计成当扳手施加预定的扭矩时它们将被扳手剪切。 当扳手被容纳在内凹部中时，螺钉可以被扳手松开。 在一个实施例中，扳手可以在剪切之前插入内凹部分中; 在第二实施例中，在扳手可以插入内凹部之前需要对凸块进行剪切。

    Panel board for stacked electrical devices with sealing covers
    17.
    发明授权
    Panel board for stacked electrical devices with sealing covers 失效
    用于具有密封盖的堆叠电气设备的面板

    公开(公告)号：US3675085A

    公开(公告)日：1972-07-04

    申请号：US3675085D

    申请日：1971-08-13

    Applicant: SQUARE D CO

    Inventor： STANBACK HARRIS I

    IPC: H02B1/28 ,  H02B1/12

    CPC classification number: H02B1/28

    Abstract: A panelboard of the type having a plurality of open front compartments adapted to accommodate electrical devices, respectively, and arranged in an upright row, each compartment having an individual cover. Each cover is connected at its upper margin to the panel adjacent the top of its associated compartment. The lower margin of the cover of each compartment overlies and conceals the connection of the cover of the compartment immediately therebeneath. A rain tight seal is provided by a combination of the shapes of forward margins of the compartment walls, the shapes of flanges and lower margins of the respective covers comparable with said margins, and the arrangement of gaskets between the coacting flanges and margins.

    Abstract translation: 该类型的面板具有分别适于容纳电气设备并且布置成直立行的多个开放前部隔间，每个隔间具有单独的盖。 每个盖子在其上边缘处连接到邻近其相关隔室顶部的面板。 每个隔间的盖的下边缘覆盖并隐藏在其下方的隔室的盖的连接。 通过组合隔室壁的前边缘的形状，与所述边缘相当的各个盖的凸缘和下边缘的形状以及共同凸缘和边缘之间的垫圈的组合来提供防雨密封。

    Neutral bar assembly
    18.
    发明授权
    Neutral bar assembly 失效
    中立杆组件

    公开(公告)号：US3594710A

    公开(公告)日：1971-07-20

    申请号：US3594710D

    申请日：1970-01-27

    Applicant: SQUARE D CO

    Inventor： STANBACK HARRIS I

    IPC: H01R9/22

    CPC classification number: H01R9/22

    Abstract: A system of components which can be grouped into sets for assembly in various configurations to provide electrical neutral bar assemblies of different shapes and having different numbers of neutral-wire-receiving openings. The system, which is particularly suitable for use with neutral wires of relatively large ampacity, includes a plurality of insulating bases, a plurality of neutral bars of different lengths, and an interconnecting plate. One or more of the bases and one or more of the neutral bars with or without the interconnecting plate are arranged to be secured together in different configurations by bolts.

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