Handling tool for overhead-mounted devices
    1.
    发明授权
    Handling tool for overhead-mounted devices 失效
    顶置式装置的处理工具

    公开(公告)号:US5742220A

    公开(公告)日:1998-04-21

    申请号:US404686

    申请日:1995-03-15

    申请人: Henry W. Scherer

    发明人: Henry W. Scherer

    CPC分类号: H01H85/0208 H01H31/125

    摘要: A handling-tool fitting is provided for use in the removal and installation of overhead mounted devices in power distribution and transmission circuits, the handling-tool fitting including a curled prong having a first, substantially straight portion and a second, cured portion that is inclined upwardly with respect to the first portion. The handling-tool fitting is inserted through a loop of the device, the loop being supposed in a stable manner on the first portion of the handling-tool fitting and the second portion preventing any movement of the loop of the device away from the first portion.

    摘要翻译: 提供了一种操作工具配件,用于在配电和传输电路中拆卸和安装架空设备,操作工具配件包括具有第一基本上直的部分的卷曲的叉和第二固定部分,其倾斜 向上相对于第一部分。 处理工具配件通过设备的环插入,环路被稳定地假定在操作工具配件的第一部分上,而第二部分防止设备的环路离开第一部分的任何移动 。

    Contact assembly for high voltage fuse
    7.
    发明授权
    Contact assembly for high voltage fuse 失效
    触点组件用于高压保险丝

    公开(公告)号:US4109227A

    公开(公告)日:1978-08-22

    申请号:US741028

    申请日:1976-11-11

    IPC分类号: H01H85/143 H01H85/16

    CPC分类号: H01H85/143

    摘要: In a high voltage expulsion type fuse, a fusible element is connected between an arcing rod and a contact element. The arcing rod is biased for movement by a spring, and when the fuse is assembled, the contact element is pulled through the fuse compressing the spring until the contact element is pulled partially through an opening in a contact bridge which is threaded into the metal exhaust ferrule of the fuse. Once the contact element is in the correct position, the bridge is swaged to attach the element to the bridge. The element has tapered grooves at the end that is inserted into the bridge so that when the bridge is swaged, the tapered grooves tend to force the contact element further into the opening so that a shoulder on the element remains firmly against the bridge. A threaded member attached to the end of the element may be engaged to pull the element through the bridge. After the bridge has been swaged, the thread member is broken off since it is no longer needed.

    Corrosion resistant means in exhaust control device for circuit
interrupting devices
    8.
    发明授权
    Corrosion resistant means in exhaust control device for circuit interrupting devices 失效
    用于电路中断装置的排气控制装置中的耐腐蚀手段

    公开(公告)号:US4001750A

    公开(公告)日:1977-01-04

    申请号:US609599

    申请日:1975-09-02

    IPC分类号: H01H33/57 H01H85/43 H01H85/38

    CPC分类号: H01H33/57 H01H85/43

    摘要: An improvement in an exhaust device to absorb the energy of exhaust gases released during operation of a circuit interrupting device such as a power fuse or an expulsion fuse is disclosed. The exhaust control device includes a hollow housing coated with a corrosion resistant coating mounted to the circuit interrupting device by means of an adapter, composed of a corrosion resistant material such as brass, which is retained in a counterbore within the housing by rolling or folding over the extended upper rim of the housing so that the coating is not damaged. Alternatively, a steel header, welded to and plated along with the steel housing shell, within which the threaded brass adapter is installed, may also be used. The same rolling or folding operation may be used to secure a plated outlet end wall. Baffles positioned within the housing for partitioning the housing into chambers for cooling and filtering the hot exhaust gases, for changing the direction of flow of the gases and for attenuating sound are held in place by crimping the hollow housing around the baffles so that the plating is not damaged. An annular expansion space formed between the hollow housing and an inner cylindrical shell increases the surface area of the hollow housing which is exposed to the blast of exhaust gases emitted from the fuse and provides an additional expansion chamber for receiving the exhaust gases produced by the interrupting device. A labyrinth plate with circumferential notches formed therein and arcuate ridges formed within and adjacent to said notches, forms gas diverting channels and a labyrinth flow pattern exhaust path to the exit ports formed within an outlet end wall.