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    Remote shock sensing and notification system
    1.
    发明授权
    Remote shock sensing and notification system 失效
    远程震动感应通知系统

    公开(公告)号：US07450023B2

    公开(公告)日：2008-11-11

    申请号：US11346867

    申请日：2006-02-03

    申请人： Govindarajan Muralidharan ,  Charles L. Britton ,  James Pearce ,  Usha Jagadish ,  Vinod K. Sikka

    发明人： Govindarajan Muralidharan ,  Charles L. Britton ,  James Pearce ,  Usha Jagadish ,  Vinod K. Sikka

    IPC分类号： G08B21/00

    CPC分类号： G08B13/1663 ,  G08B31/00

    摘要： A low-power shock sensing system includes at least one shock sensor physically coupled to a chemical storage tank to be monitored for impacts, and an RF transmitter which is in a low-power idle state in the absence of a triggering signal. The system includes interference circuitry including or activated by the shock sensor, wherein an output of the interface circuitry is coupled to an input of the RF transmitter. The interface circuitry triggers the RF transmitting with the triggering signal to transmit an alarm message to at least one remote location when the sensor senses a shock greater than a predetermined threshold. In one embodiment the shock sensor is a shock switch which provides an open and a closed state, the open state being a low power idle state.

    摘要翻译： 低功率冲击感测系统包括至少一个物理耦合到要监控冲击的化学品储罐的冲击传感器，以及在没有触发信号的情况下处于低功率空闲状态的RF发射器。 该系统包括干扰电路，包括由冲击传感器激活的干扰电路，其中接口电路的输出耦合到RF发射器的输入端。 当传感器感测到大于预定阈值的冲击时，接口电路触发具有触发信号的RF发射，以将报警消息发送到至少一个远程位置。 在一个实施例中，冲击传感器是提供打开和关闭状态的冲击开关，打开状态是低功率空闲状态。

    Nickel aluminide alloy for high temperature structural use
    4.
    发明授权
    Nickel aluminide alloy for high temperature structural use 失效
    镍铝合金用于高温结构用途

    公开(公告)号：US5006308A

    公开(公告)日：1991-04-09

    申请号：US364774

    申请日：1989-06-09

    申请人： Chain T. Liu ,  Vinod K. Sikka

    发明人： Chain T. Liu ,  Vinod K. Sikka

    IPC分类号： C22C19/05

    CPC分类号： C22C19/05

    摘要： The specification discloses nickel aluminide alloys including nickel, aluminum, chromium, zirconium and boron wherein the concentration of zirconium is maintained in the range of from about 0.05 to about 0.35 atomic percent to improve the ductility, strength and fabricability of the alloys at 1200.degree. C. Titanium may be added in an amount equal to about 0.2 to about 0.5 atomic percent to improve the mechanical properties of the alloys and the addition of a small amount of carbon further improves hot fabricability.

    摘要翻译： 该说明书公开了包括镍，铝，铬，锆和硼的镍铝合金，其中锆的浓度保持在约0.05至约0.35原子％的范围内，以提高合金在1200℃下的延展性，强度和可制造性 可以以等于约0.2至约0.5原子％的量添加钛以改善合金的机械性能，并且添加少量的碳进一步提高热可加工性。

    Method and apparatus for removal of gaseous, liquid and particulate contaminants from molten metals
    5.
    发明授权
    Method and apparatus for removal of gaseous, liquid and particulate contaminants from molten metals 失效
    从熔融金属中去除气态，液态和微粒污染物的方法和设备

    公开(公告)号：US4786320A

    公开(公告)日：1988-11-22

    申请号：US83482

    申请日：1987-08-10

    申请人： David O. Hobson ,  Igor Alexeff ,  Vinod K. Sikka

    发明人： David O. Hobson ,  Igor Alexeff ,  Vinod K. Sikka

    IPC分类号： B03C1/32 ,  C22B4/00 ,  C22B9/00 ,  C22B7/00

    CPC分类号： B03C1/32 ,  C22B4/00 ,  C22B9/00

    摘要： Method and apparatus for removal of nonelectrically-conducting gaseous, liquid, and particulate contaminants from molten metal compositions by applying a force thereto. The force (commonly referred to as the Lorentz Force) exerted by simultaneous application of an electric field and a magnetic field on a molten conductor causes an increase, in the same direction as the force, in the apparent specific gravity thereof, but does not affect the nonconducting materials. This difference in apparent densities cause the nonconducting materials to "float" in the opposite direction from the Lorentz Force at a rapid rate. Means are further provided for removal of the contaminants and prevention of stirring due to rotational forces generated by the applied fields.

    摘要翻译： 用于通过向其施加力来从熔融金属组合物中除去不导电的气态，液体和微粒污染物的方法和装置。 通过在熔融导体上同时施加电场和磁场而施加的力（通常称为洛伦兹力）在与其表观比重相同的方向上增加，但是不影响 不导电材料。 表观密度的这种差异导致非导体材料以相当的方向从洛伦兹力“漂浮”。 进一步提供了用于去除污染物并防止由于施加的场产生的旋转力而引起的搅拌的装置。

    Titanium aluminide intermetallic alloys with improved wear resistance
    7.
    发明授权
    Titanium aluminide intermetallic alloys with improved wear resistance 有权
    具有改善耐磨性的铝化铝金属间合金

    公开(公告)号：US08771439B2

    公开(公告)日：2014-07-08

    申请号：US12416323

    申请日：2009-04-01

    申请人： Jun Qu ,  Hua-Tay Lin ,  Peter J. Blau ,  Vinod K. Sikka

    发明人： Jun Qu ,  Hua-Tay Lin ,  Peter J. Blau ,  Vinod K. Sikka

    IPC分类号： C23C8/10 ,  C23C8/06

    CPC分类号： C23C8/10 ,  C22C14/00 ,  C22C30/00 ,  C23C8/80

    摘要： The invention is directed to a method for producing a titanium aluminide intermetallic alloy composition having an improved wear resistance, the method comprising heating a titanium aluminide intermetallic alloy material in an oxygen-containing environment at a temperature and for a time sufficient to produce a top oxide layer and underlying oxygen-diffused layer, followed by removal of the top oxide layer such that the oxygen-diffused layer is exposed. The invention is also directed to the resulting oxygen-diffused titanium aluminide intermetallic alloy, as well as mechanical components or devices containing the improved alloy composition.

    摘要翻译： 本发明涉及一种具有改进的耐磨性的钛铝化物金属间合金组合物的制造方法，该方法包括在含氧环境中在足以产生顶部氧化物的温度和时间下加热钛铝化物金属间合金材料 层和下面的氧扩散层，随后去除顶部氧化物层，使得氧扩散层暴露。 本发明还涉及所得的氧扩散的铝化钛金属间合金，以及包含改进的合金组成的机械部件或装置。