Track monitoring equipment
    11.
    发明授权
    Track monitoring equipment 失效
    跟踪监控设备

    公开(公告)号:US07081824B2

    公开(公告)日:2006-07-25

    申请号:US10480291

    申请日:2002-06-17

    Applicant: David Gilbert

    Inventor: David Gilbert

    CPC classification number: B61K9/08

    Abstract: The alignment of railway tracks may be monitored using an accelerometer (36) mounted on a bogie (24) of a railway vehicle to detect lateral accelerations, and a displacement transducer (38) to monitor the lateral displacements of a wheelset (27) relative to the bogie. The acceleration signals are digitised, and processed corresponding to double integration, so as to deduce the lateral displacements of the bogie, and in conjunction with the signals from the displacement transducer hence to determine the effective lateral displacements of the track. This can provide a more useful indication of the lateral positions of the rails than measurements of the gauge faces. Such equipment (16) may be installed in a service vehicle, and operate automatically, downloading resulting data to a remote base station at regular intervals.

    Abstract translation: 可以使用安装在铁路车辆的转向架(24)上的加速度计(36)来监测铁路轨道的对准以检测横向加速度;以及位移传感器(38),用于监测轮对(27)相对于 转向架 加速度信号被数字化并对应于双积分处理,以便推断转向架的横向位移,并结合来自位移传感器的信号,从而确定轨道的有效横向位移。 这可以提供轨道的横向位置比测量面的测量更有用的指示。 这样的设备(16)可以安装在服务车辆中,并且自动地操作,定期地将得到的数据下载到远程基站。

    Gamma radiation source
    17.
    发明授权
    Gamma radiation source 有权
    伽玛辐射源

    公开(公告)号:US06875377B1

    公开(公告)日:2005-04-05

    申请号:US09959125

    申请日:2000-04-20

    CPC classification number: G21G4/06

    Abstract: A gamma radiation source comprising selenium-75 or a precursor therefore, wherein the selenium is provided in the form of one or more thermally stable compounds, alloys, or mixed metal phases.

    Abstract translation: 因此,包含硒-75或前体的γ辐射源,其中硒以一种或多种热稳定化合物,合金或混合金属相的形式提供。

    Well treatment
    18.
    发明授权
    Well treatment 失效
    治疗好

    公开(公告)号:US5964291A

    公开(公告)日:1999-10-12

    申请号:US608247

    申请日:1996-02-28

    Abstract: Chemical treatment agents are supplied to a well or borehole extending through an earth formation by subjecting the well to a fracturing treatment with a high pressure fluid and proppant particles. The proppant particles are thereby trapped in fractures in the earth formation. Some or all of the proppant particles are of porous insoluble inorganic material, and are impregnated with a chemical treatment agent, such as a scale inhibitor or a corrosion inhibitor. The porous particles may be of a ceramic or oxide material, for example a silica and/or an alumina-based material.

    Abstract translation: 化学处理剂通过使井用高压流体和支撑剂颗粒进行压裂处理而被供给到延伸穿过地层的井或井眼。 因此,支撑剂颗粒被捕获在地层中的裂缝中。 支撑剂颗粒中的一些或全部是多孔的不溶性无机材料,并且用化学处理剂如阻垢剂或防腐蚀剂浸渍。 多孔颗粒可以是陶瓷或氧化物材料,例如二氧化硅和/或氧化铝基材料。

    Manufacture of composite materials
    19.
    发明授权
    Manufacture of composite materials 失效
    复合材料的制造

    公开(公告)号:US5941297A

    公开(公告)日:1999-08-24

    申请号:US716745

    申请日:1996-09-23

    CPC classification number: C22C1/1036 B22D19/14

    Abstract: Metal matrix composite is made by assembling pre-forms of porous reinforcing material with an array of separator plates in a die in a pressure vessel, and infiltrating molten metal matrix material. Pre-evacuation followed by pressurisation when the molten metal matrix material is introduced into the die aids the infiltration. Re-introduction of gas during initial heating prior to melting speeds the heat-up process.

    Abstract translation: 金属基复合材料是通过将多孔增强材料的预制件与在压力容器中的模具中的隔板阵列以及渗透的熔融金属基体材料组合而制成的。 当将熔融金属基体材料引入模具中时,预抽真空加压,有助于渗透。 在熔融之前的初始加热期间重新引入气体加速加热过程。

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