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21 条记录 (耗时 0.03 秒)

    Fuel cell membrane electrode assemblies with improved power outputs
    2.
    发明授权
    Fuel cell membrane electrode assemblies with improved power outputs 有权
    具有改进的功率输出的燃料电池膜电极组件

    公开(公告)号：US06287717B1

    公开(公告)日：2001-09-11

    申请号：US09190215

    申请日：1998-11-13

    申请人： Carlos A. Cavalca ,  James H. Arps

    发明人： Carlos A. Cavalca ,  James H. Arps

    IPC分类号： H01M486

    CPC分类号： H01M8/1004 ,  H01M4/8657 ,  H01M2250/20 ,  H01M2300/0082 ,  Y02E60/521 ,  Y02T90/32

    摘要： An electrode-membrane combination for use in a fuel cell comprising at least one reactant diffusive, electronically conductive electrode comprising at least one first catalytically active metal and at least one ionically conductive polymer; and at least one ionically conductive membrane contacting the electrode to form an electrode-membrane interfacial region, wherein the interfacial region comprises at least one zone comprising at least one second catalytically active metal and having a zone thickness of about 3 angstroms to about 475 angstroms. Surprisingly improved power output is observed. The zone is preferably deposited by electron beam physical vapor deposition. Substantially spherical nodules are observed for the zone from field-emission SEM analysis.

    摘要翻译： 一种用于燃料电池的电极 - 膜组合，包括至少一种反应物扩散的电子导电电极，其包含至少一种第一催化活性金属和至少一种离子导电聚合物; 和至少一个离子导电膜接触电极以形成电极 - 膜界面区域，其中界面区域包括至少一个包含至少一个第二催化活性金属并具有约3埃至约475埃的区域厚度的区域。 观察到惊人的功率输出。 该区域优选通过电子束物理气相沉积沉积。 从场发射扫描电子显微镜分析观察到该区域的实质球形结节。

    Plasma immersion ion processing for coating of hollow substrates
    3.
    发明授权
    Plasma immersion ion processing for coating of hollow substrates 有权
    用于涂覆中空基板的等离子浸渍离子处理

    公开(公告)号：US08029875B2

    公开(公告)日：2011-10-04

    申请号：US11752787

    申请日：2007-05-23

    申请人： Ronghua Wei ,  Christopher Rincon ,  James H. Arps

    发明人： Ronghua Wei ,  Christopher Rincon ,  James H. Arps

    IPC分类号： H05H1/24

    CPC分类号： C23C16/0245 ,  C23C16/045 ,  C23C16/24 ,  C23C16/26 ,  C23C16/505

    摘要： The present disclosure relates to a method for plasma ion deposition and coating formation. A vacuum chamber may be supplied, wherein the vacuum chamber is formed by a hollow substrate having a length, diameter and interior surface. A plasma may be formed within the chamber while applying a negative bias to the hollow substrate to draw ions from the plasma to the interior surface of the hollow substrate to deposit ions onto the interior surface and forming a coating. The coating may have a Vickers Hardness Number (Hv) of at least 500.

    摘要翻译： 本公开涉及等离子体离子沉积和涂层形成的方法。 可以提供真空室，其中真空室由具有长度，直径和内表面的中空衬底形成。 可以在室内形成等离子体，同时向中空衬底施加负偏压以将离子从等离子体吸入中空衬底的内表面，以将离子沉积到内表面上并形成涂层。 该涂层可具有至少500的维氏硬度值（Hv）。

    Biodegradable Metal-Polymer Composite Constructs For Implantable Medical Devices
    4.
    发明申请
    Biodegradable Metal-Polymer Composite Constructs For Implantable Medical Devices 审中-公开
    用于可植入医疗器械的可生物降解的金属 - 聚合物复合材料

    公开(公告)号：US20110046721A1

    公开(公告)日：2011-02-24

    申请号：US12853794

    申请日：2010-08-10

    申请人： James H. Arps

    发明人： James H. Arps

    IPC分类号： A61F2/82 ,  A61F2/00

    CPC分类号： A61L31/148 ,  A61L31/128 ,  C08L67/04

    摘要： Embodiments of the invention include biodegradable composites and medical devices including the same. In an embodiment the invention includes a biodegradable implantable medical device. The implantable medical device can include a biodegradable composite member including a polymeric matrix and a reinforcing metal disposed within the polymeric matrix. The biodegradable composite member can be configured to erode in vivo. In an embodiment the invention includes a method of making a biodegradable implantable device including contacting a polymer mixture with a reinforcing metal, the polymer mixture comprising a polymer that degrades under in vivo conditions and the reinforcing metal comprising a metal that produces substantially non-toxic erosion products. Other embodiments are included herein.

    摘要翻译： 本发明的实施方案包括可生物降解的复合物和包括其的医疗装置。 在一个实施方案中，本发明包括可生物降解的可植入医疗装置。 可植入医疗装置可以包括可生物降解的复合构件，其包括聚合物基质和设置在聚合物基体内的增强金属。 可生物降解的复合构件可以被配置为在体内侵蚀。 在一个实施方案中，本发明包括制备可生物降解的可植入装置的方法，包括使聚合物混合物与增强金属接触，所述聚合物混合物包含在体内条件下降解的聚合物和包含产生基本无毒侵蚀的金属的增强金属 产品。 本文还包括其它实施例。

    COATING APPLICATION SYSTEM WITH SHAPED MANDREL
    6.
    发明申请
    COATING APPLICATION SYSTEM WITH SHAPED MANDREL 有权
    涂层应用系统与形状的MANDREL

    公开(公告)号：US20090269481A1

    公开(公告)日：2009-10-29

    申请号：US12109139

    申请日：2008-04-24

    申请人： Ralph A. Chappa ,  James H. Arps

    发明人： Ralph A. Chappa ,  James H. Arps

    IPC分类号： B05B13/02

    CPC分类号： A61F2/82 ,  A61F2240/001 ,  B05B13/0242 ,  B05B13/0442

    摘要： The invention relates to systems and methods for applying coatings to devices. In an embodiment, the invention includes a coating apparatus including a mandrel having a lengthwise axis and an exterior surface, the exterior surface of the mandrel defining a plurality of channels disposed parallel to the lengthwise axis, the mandrel configured to rotate around the lengthwise axis; and a spray head configured to direct a stream of material at the mandrel. In an embodiment the invention includes a method of applying a coating to a medical device. Other embodiments are also included herein.

    摘要翻译： 本发明涉及将涂料涂覆到装置上的系统和方法。 在一个实施例中，本发明包括涂覆设备，其包括具有纵向轴线和外表面的心轴，心轴的外表面限定平行于纵向轴线设置的多个通道，心轴构造成围绕纵向轴线旋转; 以及喷头，其配置成在心轴处引导材料流。 在一个实施方案中，本发明包括将涂层施加到医疗装置的方法。 本文还包括其它实施例。

    Method and apparatus for forming a nitride layer on a biomedical device
    7.
    发明授权
    Method and apparatus for forming a nitride layer on a biomedical device 有权
    在生物医学装置上形成氮化物层的方法和装置

    公开(公告)号：US07261914B2

    公开(公告)日：2007-08-28

    申请号：US10811485

    申请日：2004-03-26

    申请人： Ronghua Wei ,  Thomas L. Booker ,  Christopher Rincon ,  James H. Arps

    发明人： Ronghua Wei ,  Thomas L. Booker ,  Christopher Rincon ,  James H. Arps

    IPC分类号： B05D3/06

    CPC分类号： C23C14/48 ,  C23C8/24 ,  C23C8/36 ,  H01J2237/3387

    摘要： This invention is a method of forming a nitride layer on at least one metal or metal alloy biomedical device, comprising: providing a vacuum chamber with at least one biomedical device positioned thereon on a worktable within the vacuum chamber; reducing the pressure in the vacuum chamber; introducing nitrogen into the vacuum chamber so that the pressure in the vacuum chamber is about 0.01 to about 10 milli-Torr; generating electrons within the vacuum chamber to form positively charged nitrogen ions; providing a negative bias to the worktable so that the positively charged nitrogen ions contact the biomedical devices under conditions such that a nitride layer forms on the at least one prosthetic device.

    摘要翻译： 本发明是一种在至少一种金属或金属合金生物医学装置上形成氮化物层的方法，其包括：在真空室内的工作台上提供具有至少一个生物医学装置的真空室; 降低真空室内的压力; 将氮气引入真空室，使得真空室中的压力为约0.01至约10毫乇; 在真空室内产生电子以形成带正电的氮离子; 向工作台提供负偏压，使得带正电的氮离子在使得在至少一个假肢装置上形成氮化物层的条件下接触生物医学装置。

    Coating application system with shaped mandrel
    9.
    发明授权
    Coating application system with shaped mandrel 有权
    具有成形心轴的涂层应用系统

    公开(公告)号：US09364349B2

    公开(公告)日：2016-06-14

    申请号：US12109139

    申请日：2008-04-24

    申请人： Ralph A. Chappa ,  James H. Arps

    发明人： Ralph A. Chappa ,  James H. Arps

    IPC分类号： A61F2/82 ,  B05B13/04 ,  B05B13/02

    CPC分类号： A61F2/82 ,  A61F2240/001 ,  B05B13/0242 ,  B05B13/0442

    摘要： The invention relates to systems and methods for applying coatings to devices. In an embodiment, the invention includes a coating apparatus including a mandrel having a lengthwise axis and an exterior surface, the exterior surface of the mandrel defining a plurality of channels disposed parallel to the lengthwise axis, the mandrel configured to rotate around the lengthwise axis; and a spray head configured to direct a stream of material at the mandrel. In an embodiment the invention includes a method of applying a coating to a medical device. Other embodiments are also included herein.

    摘要翻译： 本发明涉及将涂料涂覆到装置上的系统和方法。 在一个实施例中，本发明包括涂覆设备，其包括具有纵向轴线和外表面的心轴，心轴的外表面限定平行于纵向轴线设置的多个通道，心轴构造成围绕纵向轴线旋转; 以及喷头，其配置成在心轴处引导材料流。 在一个实施方案中，本发明包括将涂层施加到医疗装置的方法。 本文还包括其它实施例。

    Nanostructured low-Cr Cu-Cr coatings for high temperature oxidation resistance
    10.
    发明授权
    Nanostructured low-Cr Cu-Cr coatings for high temperature oxidation resistance 有权
    纳米结构的低Cr Cu-Cr涂层，用于高温抗氧化

    公开(公告)号：US07592051B2

    公开(公告)日：2009-09-22

    申请号：US11054665

    申请日：2005-02-09

    申请人： Kuang-Tsan Kenneth Chiang ,  James H. Arps ,  Ronghua Wei

    发明人： Kuang-Tsan Kenneth Chiang ,  James H. Arps ,  Ronghua Wei

    IPC分类号： C23C14/18

    CPC分类号： C23C14/22 ,  C23C14/16 ,  Y02T50/67 ,  Y10T428/12903

    摘要： This invention is directed to a method of preventing oxidation of copper alloys at high temperatures by deposition of a nano-structured, low-chromium copper-chromium protective coating to copper-alloy components. The coatings of the present invention are applied by an ion beam assisted, electron beam physical vapor deposition and consist of copper and chromium particles having a diameter of about 10 nm. This invention also encompasses the coated copper-alloy components produced by the disclosed deposition methods.

    摘要翻译： 本发明涉及一种通过将纳米结构的低铬铜铬保护涂层沉积到铜合金部件来防止铜合金在高温下氧化的方法。 本发明的涂层通过离子束辅助的电子束物理气相沉积法施加，并由直径约10nm的铜和铬颗粒组成。 本发明还包括通过公开的沉积方法制备的涂覆的铜合金部件。