Device for attenuating unwanted waves in an electron tube
    2.
    发明授权
    Device for attenuating unwanted waves in an electron tube 失效
    用于衰减电子管中不想要的波的装置

    公开(公告)号:US5894197A

    公开(公告)日:1999-04-13

    申请号:US586819

    申请日:1996-01-30

    申请人: Michel Langlois

    发明人: Michel Langlois

    IPC分类号: H01J19/32 H01J19/78 H01J23/54

    摘要: The present invention relates to a device for attenuating unwanted waves appearing in an electron tube which includes at least two coaxial cylindrical electrodes (2, 3). The electrodes (2, 3) contribute to forming the walls of a coaxial resonator. The unwanted waves to be attentuated generate surface currents in the walls of the coaxial resonator. The attenuation device includes several electrically conducting resistive elements (10) inserted into at least one wall of the resonator and arranged so as to cut the surface currents.

    摘要翻译: PCT No.PCT / FR94 / 00926 Sec。 371日期1996年1月30日 102(e)日期1996年1月30日PCT提交1994年7月22日PCT公布。 出版物WO95 / 04366 日期1995年2月9日本发明涉及一种用于衰减出现在电子管中的不想要的波的装置,该装置包括至少两个同轴圆柱形电极(2,3)。 电极(2,3)有助于形成同轴谐振器的壁。 要注意的不想要的波在同轴谐振器的壁中产生表面电流。 衰减装置包括插入到谐振器的至少一个壁中并且布置成切割表面电流的数个导电电阻元件(10)。

    Cathode with fast heat switch-on and switch-off mechanism and grid-type
electron tube including such a cathode
    3.
    发明授权
    Cathode with fast heat switch-on and switch-off mechanism and grid-type electron tube including such a cathode 失效
    具有快速开关和关断机构的阴极以及包括这种阴极的格栅型电子管

    公开(公告)号:US5666018A

    公开(公告)日:1997-09-09

    申请号:US663592

    申请日:1996-06-14

    IPC分类号: H01J1/18 H01J1/88

    CPC分类号: H01J25/04 H01J1/18

    摘要: An electron tube cathode has a hollow cylindrical structure formed by thermo-emissive wires mounted between two conductive supports. The two supports are mechanically fixed to each other. To prevent the deformation of the cathode when the heating is turned on and turned off, at least one spring is used, this spring being integrated with one of the supports and being placed in the vicinity of the thermo-emissive wires. The spring is made of a material possessing elastic properties which, at ambient temperature, are lower than or equal to the properties that it has at a temperature greater than ambient temperature.

    摘要翻译: 电子管阴极具有由安装在两个导电支撑件之间的热发射线形成的中空圆柱形结构。 两个支架相互机械固定。 为了防止加热开启和关闭时阴极的变形,使用至少一个弹簧,该弹簧与其中一个支撑件一体化并放置在热发射线附近。 弹簧由具有弹性特性的材料制成,在环境温度下,其温度低于或等于其在大于环境温度的温度下具有的特性。

    5-(1-Propyl)n-butyl tetrazoles
    7.
    发明授权
    5-(1-Propyl)n-butyl tetrazoles 失效
    5-(1-丙基)正丁基四唑

    公开(公告)号:US4528380A

    公开(公告)日:1985-07-09

    申请号:US446971

    申请日:1982-12-06

    摘要: New tetrazole derivatives, characterized in that they correspond to the formula: ##STR1## in which R.sub.1 represents: either a hydrogen atom in any one of the positions 1 to 5 of the tetrazole nucleus, R designating a branched alkyl group comprising at least 5 carbon atoms or a branched alkenyl group, or a methyl group in position 2(3) of the tetrazole nucleus, R representing the (1-propyl)n butyl chain.These new derivatives are useful as medicaments, more especially for their anti-epileptic action.

    摘要翻译: 新的四唑衍生物,其特征在于它们对应于下式:其中R 1表示:四唑核的位置1至5中的任一个中的氢原子,R指定支链烷基,其包含在 至少5个碳原子或支链烯基,或四唑核的2(3)位的甲基,R代表(1-丙基)正丁基链。 这些新的衍生物作为药物是有用的,更特别是用于其抗癫痫作用。