利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

66 条记录 (耗时 0.025 秒)

    DC superconducting quantum interference device usable in nuclear quadrupole resonance and zero field nuclear magnetic spectrometers
    21.
    发明授权
    DC superconducting quantum interference device usable in nuclear quadrupole resonance and zero field nuclear magnetic spectrometers 失效
    可用于核四极共振和零场核磁光谱仪的直流超导量子干涉装置

    公开(公告)号：US5254950A

    公开(公告)日：1993-10-19

    申请号：US759997

    申请日：1991-09-13

    申请人： Non Q. Fan ,  John Clarke

    发明人： Non Q. Fan ,  John Clarke

    IPC分类号： G01R33/035 ,  G01R33/36 ,  G01R33/44 ,  G01V3/00

    CPC分类号： G01R33/326 ,  G01R33/0356 ,  G01R33/441

    摘要： A spectrometer for measuring the nuclear quadrupole resonance spectra or the zero-field nuclear magnetic resonance spectra generated by a sample is disclosed. The spectrometer uses an amplifier having a dc SQUID operating in a flux-locked loop for generating an amplified output as a function of the intensity of the signal generated by the sample. The flux-locked loop circuit includes an integrator. The amplifier also includes means for preventing the integrator from being driven into saturation. As a result, the time for the flux-locked loop to recover from the excitation pulses generated by the spectrometer is reduced.

    摘要翻译： 公开了用于测量由样品产生的核四极共振谱或零场核磁共振谱的光谱仪。 光谱仪使用具有在磁通锁定环路中工作的直流SQUID的放大器，以产生作为由样本产生的信号的强度的函数的放大输出。 磁通锁定环电路包括积分器。 放大器还包括用于防止积分器被驱动到饱和的装置。 结果，磁通锁定环从由光谱仪产生的激发脉冲恢复的时间减少。

    Modular solid state radar transmitter
    22.
    发明授权
    Modular solid state radar transmitter 失效
    模块化固态雷达发射机

    公开(公告)号：US5136300A

    公开(公告)日：1992-08-04

    申请号：US713259

    申请日：1991-06-13

    申请人： John Clarke ,  Joseph A. Faulkner, Jr. ,  Gregory K. Sinon ,  Brian J. Misek ,  John E. Kositz

    发明人： John Clarke ,  Joseph A. Faulkner, Jr. ,  Gregory K. Sinon ,  Brian J. Misek ,  John E. Kositz

    IPC分类号： G01S7/282 ,  G01S7/03 ,  G01S7/40 ,  G01S13/95 ,  G01W1/00 ,  H03F3/60

    CPC分类号： H03F3/604 ,  G01S13/953 ,  G01S7/032 ,  G01S7/4008

    摘要： A solid state radar transmitter for use in airborne applications has a modular design which extends into the transmitter. The transmitter is formed of a plurality of power modules the number of which is selected based on the power required for a particular application. For example, two 75 to 100 watt modules may be used for weather radar, while 30 to 60 or more modules may be used for fire control in a military fighter. A radio frequency signal from a stabilized local oscillator is distributed by a splitter to the power modules and a combiner is used to combine the output from the power modules to produce the transmitter output signal. Each power module is formed of parallel connected power amplifiers, preferably formed by GaAs FETs and a power conditioning and control unit. The power conditioning and control unit produces a DC bias across the FETs as desired to produce a particular signal. The transmitter output signals which can be produced in this manner include rectangular, Gaussian on a pedestal and one amplifier at a time for testing purposes.

    摘要翻译： 用于机载应用的固态雷达发射机具有延伸到发射机中的模块化设计。 发射机由多个功率模块形成，其数量基于特定应用所需的功率来选择。 例如，两个75至100瓦模块可用于天气雷达，而30至60个或更多的模块可用于军事战斗机中的消防。 来自稳定的本地振荡器的射频信号由分离器分配到功率模块，并且组合器用于组合来自功率模块的输出以产生发射机输出信号。 每个功率模块由并联连接的功率放大器形成，优选由GaAs FET和功率调节和控制单元形成。 功率调节和控制单元根据需要产生跨FET的直流偏置，以产生特定的信号。 可以以这种方式产生的发射机输出信号在基座上包括矩形高斯，一个放大器用于测试目的。

    Remanence varying in a leakage free permanent magnet field source
    24.
    发明授权
    Remanence varying in a leakage free permanent magnet field source 失效
    无漏磁永磁场源的残余变化

    公开(公告)号：US4692732A

    公开(公告)日：1987-09-08

    申请号：US868862

    申请日：1986-05-30

    申请人： Herbert A. Leupold ,  Ernest Potenziani, II ,  John Clarke

    发明人： Herbert A. Leupold ,  Ernest Potenziani, II ,  John Clarke

    IPC分类号： H01F7/02

    CPC分类号： H01F7/0278

    摘要： A magnetic circuit with a remanence varying cylindrical magnet having a b and a remanence varying cladding magnet circumscribing the cylindrical magnet creating a longitudinally increasing axial magnetic field within the bore. The cladding magnet has a radial magnetization transverse to the axial magnetization of the cylindrical magnet resulting in a constant magnetic potential along the outer exterior surface of the magnetic circuit.

    摘要翻译： 具有可变圆柱形磁体的磁路，其具有孔和围绕圆柱形磁体的剩磁变化包层磁体，从而在孔内形成纵向增加的轴向磁场。 包壳磁体具有横向于圆柱形磁体的轴向磁化的径向磁化，导致沿着磁路的外部外表面的恒定磁势。

    Balloon expandable stent
    29.
    发明申请
    Balloon expandable stent 有权
    球囊扩张支架

    公开(公告)号：US20060079958A1

    公开(公告)日：2006-04-13

    申请号：US11274158

    申请日：2005-11-16

    申请人： Peter Stratford ,  Alistair Taylor ,  Vincent O'Byrne ,  John Clarke ,  Denis Healy

    发明人： Peter Stratford ,  Alistair Taylor ,  Vincent O'Byrne ,  John Clarke ,  Denis Healy

    IPC分类号： A61F2/06

    CPC分类号： A61L29/085 ,  A61L31/10

    摘要： The present invention relate to a balloon expandable stent mounted on a balloon catheter, the entire assembly being overcoated with a coherent polymer coating, which is preferably substantially continuous over the circumference and, more preferably, axial length of the stent on the balloon. The polymer coating improves retention of the stent on the balloon during delivery and does not adversely effect the deployment characteristics, nor the balloon failure characteristics. The product is made by mounting the stent on the balloon and coating the assembly with a liquid coating composition containing a suitable polymer followed by curing of the coating. The polymer is biocompatible and preferably crosslinkable in the coating composition, and crosslinked in the final product. A suitable polymer is formed from monomers including a zwitterionic, preferably a phosphoryl choline, group, and monomers including a trialkoxysilyl group. Preferably the coated product is contacted with ethylene oxide to provide simultaneous sterilization and additional curing.

    摘要翻译： 本发明涉及一种安装在球囊导管上的球囊可扩张支架，整个组件被涂覆有凝聚聚合物涂层，其优选地基本上在圆周上基本上连续，更优选地，支架在气囊上的轴向长度。 聚合物涂层改善了支架在输送过程中在气囊上的保持性，并且不会对展开特征以及球囊破坏特性产生不利影响。 该产品通过将支架安装在气球上并用包含合适聚合物的液体涂料组合物涂覆组合物，然后固化涂层而制成。 聚合物是生物相容的并且优选在涂料组合物中可交联，并在最终产物中交联。 合适的聚合物由包括两性离子，优选磷酰胆碱的单体和包含三烷氧基甲硅烷基的单体形成。 优选地，涂覆的产品与环氧乙烷接触以提供同时的灭菌和额外的固化。

    Wheel immobilizer
    30.
    发明申请
    Wheel immobilizer 有权
    车轮防盗器

    公开(公告)号：US20050247087A1

    公开(公告)日：2005-11-10

    申请号：US10839223

    申请日：2004-05-06

    申请人： John Clarke

    发明人： John Clarke

    IPC分类号： B60R25/00 ,  B62D43/00 ,  B62H5/14

    CPC分类号： B60R25/093 ,  Y10T70/40 ,  Y10T70/5765 ,  Y10T70/5841

    摘要： An immobilization apparatus for a vehicle having a wheel with a tire. The apparatus comprises first and second elongated members having inner ends and outer ends. The inner ends are connected together and the outer ends are angularly spaced apart. There is an L-shaped clasp at each of the outer ends for grasping the tire. The clasps are rotatable about the outer ends. A third elongated member has an inner portion and an outer portion and is angularly spaced-apart from the first and second members. The inner portion is tubular and the outer portion of the third elongated member is telescopically received therein. The outer portion has an L-shaped clasp, and the outer portion is rotatable with respect to the inner portion. A locking mechanism secures the outer portion at a fixed telescopic position with respect to the inner portion of the third elongated member.

    摘要翻译： 一种具有带有轮胎的车轮的车辆的固定装置。 该装置包括具有内端和外端的第一和第二细长构件。 内端连接在一起，并且外端部成角度间隔开。 在每个外端都有一个L形扣环，用于抓紧轮胎。 夹子可绕外端旋转。 第三细长构件具有内部部分和外部部分，并且与第一和第二构件成角度地间隔开。 内部是管状的，并且第三细长构件的外部可伸缩地容纳在其中。 外部具有L形扣环，并且外部部分可相对于内部部分旋转。 锁定机构将外部部分固定在相对于第三细长构件的内部的固定的伸缩位置。