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30 条记录 (耗时 0.024 秒)

    Water insoluble additive for improving conductivity of an ion exchange membrane
    3.
    发明授权
    Water insoluble additive for improving conductivity of an ion exchange membrane 失效
    用于改善离子交换膜导电性的水不溶性添加剂

    公开(公告)号：US07601759B2

    公开(公告)日：2009-10-13

    申请号：US10962184

    申请日：2004-10-08

    申请人： Sean M. MacKinnon ,  Timothy J. Peckham ,  Charles Stone

    发明人： Sean M. MacKinnon ,  Timothy J. Peckham ,  Charles Stone

    IPC分类号： C08J5/22 ,  H01M8/10

    CPC分类号： H01M8/1048 ,  H01M8/0234 ,  H01M8/0289 ,  H01M8/1007 ,  H01M8/1016

    摘要： A water insoluble additive for improving the performance of an ion-exchange membrane, such as in the context of the high temperature operation of electrochemical fuel cells. The insoluble additive comprises a metal oxide cross-linked matrix having acid groups covalently attached to the matrix through linkers. In one embodiment, the metal is silicon and the cross-linked matrix is a siloxane cross-linked matrix containing silicon atoms cross-linked by multiple disiloxy bonds and having acid groups covalently attached to the silicon atoms through alkanediyl linkers.

    摘要翻译： 用于改善离子交换膜的性能的水不溶性添加剂，例如在电化学燃料电池的高温操作的背景下。 不溶性添加剂包括具有通过接头共价连接到基质上的酸基的金属氧化物交联基质。 在一个实施方案中，金属是硅，并且交联基质是含有硅原子的硅氧烷交联基质，所述硅原子通过多个芳氧基键交联并且具有通过烷二基接头共价连接到硅原子上的酸基团。

    Method for achieving highly reproducible acceleration insensitive quartz crystal oscillators
    4.
    发明授权
    Method for achieving highly reproducible acceleration insensitive quartz crystal oscillators 有权
    实现高度可重现加速度不敏感的石英晶体振荡器的方法

    公开(公告)号：US07106143B2

    公开(公告)日：2006-09-12

    申请号：US11096318

    申请日：2005-03-31

    申请人： Martin Bloch ,  Oleandro Mancini ,  Charles Stone

    发明人： Martin Bloch ,  Oleandro Mancini ,  Charles Stone

    IPC分类号： H03B1/04 ,  H03B5/32

    CPC分类号： H03B5/36 ,  H03B5/04

    摘要： An oscillator and a method for producing an improved oscillator that will generate an accurate frequency when encountering a vibration. The oscillator and method uses a crystal with minimal cross-axis coupling. Further, a first accelerometer produced using MEMS technology is used. The first accelerometer is positioned inside of the oscillator so that the accelerometer accurately measures any vibration encountered by the oscillator. The first accelerometer and the crystal are maintained at constant temperature to minimize phase shifts and gain variations.

    摘要翻译： 一种用于产生改进的振荡器的振荡器和方法，其在遇到振动时将产生精确的频率。 振荡器和方法使用最小交叉轴耦合的晶体。 此外，使用使用MEMS技术制造的第一加速度计。 第一个加速度计位于振荡器的内部，使加速度计精确地测量振荡器遇到的任何振动。 第一加速度计和晶体保持在恒定温度以最小化相移和增益变化。

    Precision oven-controlled crystal oscillator
    6.
    发明授权
    Precision oven-controlled crystal oscillator 失效
    精密烤箱控制晶体振荡器

    公开(公告)号：US06753737B2

    公开(公告)日：2004-06-22

    申请号：US10390557

    申请日：2003-03-17

    申请人： John C. Ho ,  Charles Stone ,  Thomas McClelland

    发明人： John C. Ho ,  Charles Stone ,  Thomas McClelland

    IPC分类号： H03L706

    CPC分类号： H03L7/1806 ,  H03B5/04 ,  H03B5/36 ,  H03B5/366 ,  H03C3/0975 ,  H03L1/02 ,  H03L2207/12

    摘要： A precision oven-controlled crystal oscillator (OCXO) uses an adjustment feedback signal that, when mixed with a reference signal from a stable reference oscillator, accurately controls the generation of an output signal from a voltage controlled crystal oscillator (VCXO). An OCXO according to the invention has high stability and high accuracy. The digital OXCO can be manufactured at low cost, and is particularly beneficial for Code Division Multiple Access (CDMA) base station applications in cellular communication networks an the like.

    摘要翻译： 精密烤箱控制晶体振荡器（OCXO）使用调节反馈信号，当与稳定基准振荡器的参考信号混合时，可精确控制来自压控晶体振荡器（VCXO）的输出信号的产生。 根据本发明的OCXO具有高稳定性和高精度。 数字OXCO可以以低成本制造，并且对于蜂窝通信网络中的码分多址（CDMA）基站应用是特别有利的。

    Composite ion exchange membrane for use in a fuel cell
    7.
    发明授权
    Composite ion exchange membrane for use in a fuel cell 有权
    用于燃料电池的复合离子交换膜

    公开(公告)号：US06689501B2

    公开(公告)日：2004-02-10

    申请号：US09866387

    申请日：2001-05-25

    申请人： Charles Stone ,  David A. Summers

    发明人： Charles Stone ,  David A. Summers

    IPC分类号： H01M802

    CPC分类号： H01M8/1067 ,  C08J5/2275 ,  C08J2323/16 ,  C08J2327/18 ,  H01M8/0289 ,  H01M8/1004 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/106 ,  H01M8/1062 ,  H01M2300/0091

    摘要： A composite membrane for use in a fuel cell membrane electrode assembly comprises a porous polymeric substrate and an impregnant partially filling the substrate such that the substrate comprises a first region having pores substantially filled with the impregnant, and a second substantially porous region. The impregnant comprises a cation exchange material. The cation exchange material covers one surface of the substrate in a dense surface layer, contiguous with the first region of the substrate. The substrate has greater than 10% residual porosity, and the composite membrane is substantially gas impermeable and has at least one substantially porous major surface.

    摘要翻译： 一种用于燃料电池膜电极组件的复合膜包括多孔聚合物基底和部分填充基底的浸渍剂，使得基底包括具有基本上被浸渍剂填充的孔的第一区域和第二基本上多孔的区域。 浸渍剂包括阳离子交换材料。 阳离子交换材料覆盖与基底的第一区相邻的致密表面层中的基底的一个表面。 基材具有大于10％的残余孔隙率，并且复合膜基本上不透气，并且具有至少一个基本上多孔的主表面。

    Method of making stripped porous polymer films
    8.
    发明授权
    Method of making stripped porous polymer films 失效
    剥离多孔聚合物膜的方法

    公开(公告)号：US06497977B1

    公开(公告)日：2002-12-24

    申请号：US09451478

    申请日：1999-11-30

    申请人： Charles Stone ,  Dave Summers

    发明人： Charles Stone ,  Dave Summers

    IPC分类号： H01M214

    CPC分类号： B01D67/0086 ,  H01M8/1044 ,  H01M8/1046 ,  H01M8/1048 ,  H01M8/106 ,  H01M8/1062 ,  H01M8/1067 ,  H01M8/1081 ,  H01M8/1093 ,  Y02P70/56 ,  Y10T428/31

    摘要： Stripped porous polymer film and a method for making such film from substantially heterogeneous porous polymer film are described. The heterogeneous film has surface characteristics that are different from the characteristics of the interior bulk material, and the method comprises mechanically stripping at least a portion of at least one surface layer from the heterogeneous film. The stripped porous polymer film may be incorporated into composite membranes. Such composite membranes are particularly suitable for incorporation into membrane electrode assemblies for use in electrochemical cells, including electrochemical fuel cells.

    摘要翻译： 描述剥离的多孔聚合物膜和从基本上均匀的多孔聚合物膜制备这种膜的方法。 非均相膜具有与内部散装材料的特性不同的表面特性，并且该方法包括从异质膜机械剥离至少一部分表面层。 剥离的多孔聚合物膜可以结合到复合膜中。 这种复合膜特别适用于掺入用于电化学电池（包括电化学燃料电池）的膜电极组件中。

    Fluorocarbon coating method
    10.
    发明授权
    Fluorocarbon coating method 失效
    氟碳涂层法

    公开(公告)号：US4961966A

    公开(公告)日：1990-10-09

    申请号：US477390

    申请日：1990-02-09

    申请人： Robert K. Stevens ,  Charles Stone

    发明人： Robert K. Stevens ,  Charles Stone

    IPC分类号： G01N1/22

    CPC分类号： G01N1/2208 ,  G01N2001/2223

    摘要： An inlet apparatus for gas-aerosol sampling comprises an elutriator column and an impactor member. The elutriator column comprises an inlet and an impact accelerator jet outlet, and the inner surface of the column is provided with a coating of polytetrafluoroethylene-containing polymer. The impactor member includes a housing which surrounds the impact accelerator jet outlet and an impactor surface arranged within the housing and opposite the impact accelerator jet outlet. The inner surface of the housing is also provided with a polytetrafluoroethylene-containing polymer coating.

    摘要翻译： 用于气溶胶取样的入口装置包括洗脱塔和冲击器构件。 洗脱塔包括入口和冲击加速器喷射出口，并且柱的内表面设置有含聚四氟乙烯的聚合物的涂层。 冲击器构件包括围绕冲击加速器喷射出口的壳体和布置在壳体内并与冲击加速器喷射出口相对的冲击器表面。 壳体的内表面还设有含聚四氟乙烯的聚合物涂层。