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61 条记录 (耗时 0.011 秒)

    Electric reversing switch
    1.
    发明授权
    Electric reversing switch 失效
    电动开关

    公开(公告)号：US3649780A

    公开(公告)日：1972-03-14

    申请号：US3649780D

    申请日：1970-05-13

    申请人： ARROW HART INC

    发明人： JOHNSON DAVID W

    IPC分类号： H01H19/36 ,  H01H21/58 ,  H01H9/00

    CPC分类号： H01H19/36 ,  H01H21/58

    摘要： An electric reversing switch for power-operated tools has an insulating casing, the two parts of which are identical. Two onepiece contact and terminal members are mounted on each half of the casing in position for engagement by two identical movable contacts which are carried by an oscillatory contact carrier of insulating material and are stamped from sheet metal into such shape that a part of each contact is always in engagement with the two fixed contacts in one-half of the casing, while the other parts of these movable contacts engage and disengage the fixed contacts in the other part of the casing. In one position, the portion of the contacts which are always engaged also engage the fixed contacts in the other part of the casing. For maintaining the contact carrier in its two position, two ball detents each are pressed into one or the other of two depressions in each of the parts of the casing by a single spring between the two balls.

    摘要翻译： 用于动力工具的电动反向开关具有绝缘壳体，其两部分相同。 两个单件接触端子构件安装在壳体的每一半上，用于通过由绝缘材料的振荡接触载体承载的两个相同的可动触点接合，并且由金属板冲压成这样的形状： 接触件总是与壳体的一半中的两个固定触头接合，而这些可动触头的其他部分接合并脱离壳体另一部分中的固定触头。 在一个位置，总是接合的触头部分也与壳体的另一部分中的固定触点接合。 为了将接触托架保持在其两个位置，两个球形棘爪通过两个球之间的单个弹簧压在壳体的每个部分中的两个凹陷中的一个或另一个中。

    Circuit breaker operating mechanism
    9.
    发明授权
    Circuit breaker operating mechanism 失效
    断路器操作机构

    公开(公告)号：US3814878A

    公开(公告)日：1974-06-04

    申请号：US24171472

    申请日：1972-04-06

    申请人： PORTER CO H

    发明人： WESTON D ,  KUPETIS R

    IPC分类号： H01H21/58 ,  H01H33/12 ,  H01H33/666 ,  H01H33/66

    CPC分类号： H01H33/6661 ,  H01H21/58 ,  H01H33/122

    摘要： A circuit breaker comprised of a shunt switch, vacuum tube interrupter switches and a disconnect switch blade housing said interrupter switches is operated by the mechanism of the invention in a switch opening sequence wherein the shunt switch is opened first, the interrupter switches are then opened at high speed and the disconnect blade is swung open immediately following opening of the interrupter switches, and in a closing sequence wherein the circuit is closed through the shunt switch to relieve the interrupters of circuit closing stresses.

    摘要翻译： 包括分流开关，真空管断路器开关和容纳所述断续器开关的断路开关叶片的断路器由本发明的机构以开关打开顺序操作，其中分流开关首先断开，然后将断流器开关打开 断路器开关打开后，断开刀片立即被打开，并且在关闭顺序中，其中电路通过分流开关闭合以减轻断路器的闭路应力。