Improvements in the Construction of Solid-metal Electric Vapour Lamps.

    公开(公告)号:GB191424766A

    公开(公告)日:1915-09-16

    申请号:GB191424766D

    申请日:1914-12-30

    Abstract: 24,766. Sand, H. J. S. Dec. 30. Molten metals, removing occluded gases and other impurities from by exhaustion and mechanical treatment.-To remove oxide and gas from a metal such as cadmium or cadmium alloy to be used in vapour electric apparatus, the metal may be melted from a solid rod M and admitted into the already exhausted container through wire-gauze or through a tube which is drawn out to capillary size at one or more points b. Further purification may be effected by boiling the metal during pumping.

    Vacuum electron device electrodes and components manufactured from highly oriented pyrolytic graphite (HOPG)
    35.
    发明授权
    Vacuum electron device electrodes and components manufactured from highly oriented pyrolytic graphite (HOPG) 有权
    由高取向热解石墨(HOPG)制造的真空电子器件电极和部件

    公开(公告)号:US08610343B2

    公开(公告)日:2013-12-17

    申请号:US13492645

    申请日:2012-06-08

    Abstract: Components for use in vacuum electron devices are fabricated from highly oriented pyrolytic graphite (HOPG) and exhibit excellent thermal conductivity, low sputtering rates, and low ion erosion rates as compared to conventional components made from copper or molybdenum. HOPG can be reliably brazed by carefully controlling tolerances, calculating braze joint material volume, and applying appropriate compression during furnace operations. The resulting components exhibit superior thermal performance and enhanced resistance to ion erosion and pitting.

    Abstract translation: 用于真空电子器件的组件由高取向热解石墨(HOPG)制成,并且与由铜或钼制成的常规元件相比,显示出优异的导热性,低溅射速率和低离子侵蚀速率。 HOPG可以通过仔细控制公差,计算钎焊接头材料体积以及在炉子操作期间施加适当的压缩来可靠地钎焊。 所得组分表现出优异的热性能和增强的抗离子侵蚀和点蚀性能。

    Liquid metal cathode with single capillary flow impedance
    36.
    发明授权
    Liquid metal cathode with single capillary flow impedance 失效
    液体金属阴极与单毛细管流动阻力

    公开(公告)号:US3579011A

    公开(公告)日:1971-05-18

    申请号:US3579011D

    申请日:1969-01-08

    Inventor: HYMAN JULIUS JR

    CPC classification number: H01J13/08 H01J13/06 H01J13/14 H01J2893/0083

    Abstract: The liquid metal cathode is employed as a cathodic electron source in arc discharges. A small liquid metal pool serves as the arcing material, and when it is kept small, improved electron-toatom emission ratios are obtained, as well as gravity independence. However, when such a small pool is employed, feed to the pool must be free of feed rate perturbations. Otherwise, an instability in the level of the mercury in the pool results. The present invention obtains feed rate stability by providing a feed passage with a diameter which is everywhere larger than that of the feed channel which finally discharges to the pool. Feed flow impedance is provided by an elongated capillary feed channel.

    BIDIRECTIONAL GAS DISCHARGE TUBE
    39.
    发明申请

    公开(公告)号:US20210217573A1

    公开(公告)日:2021-07-15

    申请号:US16740096

    申请日:2020-01-10

    Abstract: A bidirectional gas discharge tube (GDT) includes a discharge chamber, first and second cathodes, a gas disposed within the discharge chamber, and a control grid. The first and second cathodes are disposed within the discharge chamber and include first and second faces, respectively. The first face and the second face are plane-parallel. The gas is configured to insulate the first cathode from the second cathode. The control grid is disposed between the first and second cathodes within the discharge chamber. The control grid is configured to generate an electric field to initiate establishment of a conductive plasma between the first and second cathodes to close a conduction path extending between the first and second cathodes.

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