Arc chute for an electric cuircuit breaker
    1.
    发明授权
    Arc chute for an electric cuircuit breaker 失效
    电弧断路器的弧形

    公开(公告)号:US3560685A

    公开(公告)日:1971-02-02

    申请号:US3560685D

    申请日:1969-05-26

    Applicant: GEN ELECTRIC

    CPC classification number: H01H9/34

    Abstract: Discloses an arc chute having spaced sidewalls of a first insulating material and arc runners having most of their active surfaces of a refractory metal. Between one of the runners and the sidewalls are two face plates of a second insulating material, such as glass-bonded mica, that is characterized by low gas evolution and greater surface resistivity than said first material under high humidity conditions. The face-plate surfaces adjacent an arc are shielded from the arc by a thermally-sprayed coating of refractory ceramic insulating material on said surfaces.

    Contact structure for an electric circuit breaker
    3.
    发明授权
    Contact structure for an electric circuit breaker 失效
    电气断路器的接触结构

    公开(公告)号:US3686456A

    公开(公告)日:1972-08-22

    申请号:US3686456D

    申请日:1970-04-09

    Applicant: GEN ELECTRIC

    Inventor: TALENTO JOSEPH L

    CPC classification number: H01H1/0233

    Abstract: Discloses a circuit breaker with a pair of contacts that are located in a fluid medium and are relatively movable into and out of engagement with each other. Each of these contacts comprises a porous skeleton of a refractory material, such as tungsten or tungsten carbide, and an alloy of silver and bismuth filling the pores of the skeleton. The percentage of bismuth is less than 2 percent by weight of the silver-bismuth alloy.

    Abstract translation: 公开了一种断路器,其具有位于流体介质中并且可相对于彼此相互移动和脱离接合的一对触点。 这些触点中的每一个包括诸如钨或碳化钨的耐火材料的多孔骨架,以及填充骨架孔的银和铋的合金。 铋的比例小于银铋合金的2重量%。

    Vacuum interrupter with contacts containing a minor percentage of aluminum
    4.
    发明授权
    Vacuum interrupter with contacts containing a minor percentage of aluminum 失效
    具有少量铝的接触器的真空中断器

    公开(公告)号:US3663775A

    公开(公告)日:1972-05-16

    申请号:US3663775D

    申请日:1970-03-24

    Applicant: GEN ELECTRIC

    CPC classification number: H01H1/0203

    Abstract: Discloses a vacuum-type electric circuit interrupter having its contacts formed of a porous refractory metal matrix and an alloy filling the pores of the matrix consisting essentially of copper, aluminum, and bismuth. In the alloy, the aluminum is present in a quantity of between 9 and 15 percent by weight of copperaluminum, and the bismuth is present in a quantity of less than 5 percent by weight of the total alloy.

    Abstract translation: 公开了一种真空型电路断路器,其具有由多孔耐火金属基体和填充基本上由铜,铝和铋组成的基体的孔的合金形成的触点。 在该合金中,铝的存在量为铜 - 铝的9-15%(重量),铋的存在量小于总合金的5%(重量)。

    Method of making an electrode having a refractory metal arcing portion
    5.
    发明授权
    Method of making an electrode having a refractory metal arcing portion 失效
    制造具有耐火金属电弧部分的电极的方法

    公开(公告)号:US3657799A

    公开(公告)日:1972-04-25

    申请号:US3657799D

    申请日:1969-12-18

    Applicant: GEN ELECTRIC

    CPC classification number: B22F3/26

    Abstract: Discloses a method of making an electrode that involves providing a cup-shaped shell of sintered refractory particles, placing within the shell non-refractory backing metal, heating in a reducing atmosphere to melt the backing metal and cause it to infiltrate the shell, replacing the reducing atmosphere with an inert environment, holding the assembly in the inert environment for a sufficient period to remove a substantial quantity of dissolved gases from the molten backing metal, and then cooling within said inert environment to solidify said backing metal and remove additional dissolved gases.

    Abstract translation: 公开了一种制造电极的方法,其包括提供烧结耐火材料颗粒的杯形壳体,将其置于壳体内的非耐火背衬金属中,在还原气氛中加热以熔化背衬金属并使其渗透壳体, 在惰性环境中还原气氛,将组件在惰性环境中保持足够的时间以从熔融的背衬金属中除去大量的溶解气体,然后在所述惰性环境内冷却以固化所述背衬金属并除去另外的溶解气体。

    Vacuum-type circuit interrupter with contact material containing a minor percentage of beryllium
    6.
    发明授权
    Vacuum-type circuit interrupter with contact material containing a minor percentage of beryllium 失效
    具有接触材料的真空型电路中断器含有少量百里香

    公开(公告)号:US3586803A

    公开(公告)日:1971-06-22

    申请号:US3586803D

    申请日:1969-12-29

    Applicant: GEN ELECTRIC

    CPC classification number: H01H1/0203

    Abstract: A vacuum-type circuit interrupter comprising a pair of contacts relatively movable into and out of engagement, the contacts having circuit-making and -breaking regions formed of an alloy consisting essentially of copper-beryllium and bismuth, the beryllium being present in a quantity of between 2 percent and 19 percent by weight of the copper-beryllium and the bismuth being present in a quantity of less than about 5 percent by weight of the total alloy but in a sufficient quantity to inhibit contact welding.

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