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    Hydrogen detector system
    7.
    发明授权
    Hydrogen detector system 失效
    氢气检测系统

    公开(公告)号：US3927555A

    公开(公告)日：1975-12-23

    申请号：US40616373

    申请日：1973-10-15

    Applicant: GEN ELECTRIC

    Inventor： GODWIN STANLEY J ,  KLINT ROBERT V

    IPC: G01B7/16 ,  G01N30/00 ,  G01N33/00 ,  G01N31/06

    CPC classification number: G01N33/0027 ,  G01B7/16 ,  G01N30/00 ,  G01N2030/8423

    Abstract: A hydrogen sensor unit with a palladium alloy tube open at both ends that changes length reversibly dependent on hydrogen concentration has an improved mounting for substantially unconstrained volumetric change in all directions, so as to be usable with a large range of hydrogen concentrations. Both the inner and outer surfaces of the tube are contacted by the ambient atmosphere. Associated signal processing equipment continuously derives the percent hydrogen by volume. Applications include monitoring a nuclear reactor and a transformer tank for malfunctions.

    Abstract translation: 具有钯合金管两端开放的氢传感器单元，其可逆地依赖于氢浓度改变长度，具有改进的安装，用于在所有方向上基本上无约束的体积变化，从而可用于大范围的氢浓度。 管的内表面和外表面都与环境气氛接触。 相关信号处理设备按照体积不断得出氢气百分比。 应用包括监控核反应堆和变压器箱的故障。

    Electric circuit breaker with electromagnetically assisted closing means
    8.
    发明授权
    Electric circuit breaker with electromagnetically assisted closing means 失效
    具有电磁辅助闭合装置的电路断路器

    公开(公告)号：US3665350A

    公开(公告)日：1972-05-23

    申请号：US3665350D

    申请日：1971-04-19

    Applicant: GEN ELECTRIC

    Inventor： KLINT ROBERT V

    IPC: H01H1/54 ,  H01H1/58 ,  H01H33/666

    CPC classification number: H01H33/666 ,  H01H1/54 ,  H01H1/5822

    Abstract: Discloses an electric circuit breaker that includes electromagnetic assist means for opposing the magnetic contactrepulsion forces developed when a high current flows through the circuit breaker. The electromagnetic assist means comprises flexible conductive means in series with the contacts of the breaker for carrying the inter-contact current through a loopshaped path where a magnetic closing force is developed on the contacts. Only a minor portion of the total inter-contact current is conducted through the loop-shaped path. For carrying the remaining and major portion of the current, additional flexible conductive means is connected in series with the contacts and in parallel with the loop-shaped path, and this additional conductive means follows a path separate from and independent of the loop-shaped path. Sufficient closing force is obtained from the minor portion of the total current that passes through the loop-shaped path to hold the contacts engaged during the highest current surges for which the breaker is rated.

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