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624 条记录 (耗时 0.032 秒)

    Microliter scale solid phase extraction devices
    82.
    发明申请
    Microliter scale solid phase extraction devices 审中-公开
    微量级固相萃取装置

    公开(公告)号：US20060163143A1

    公开(公告)日：2006-07-27

    申请号：US11044788

    申请日：2005-01-26

    申请人： Gabriela Chirica ,  Ronald Renzi ,  Blake Simmons

    发明人： Gabriela Chirica ,  Ronald Renzi ,  Blake Simmons

    IPC分类号： B01D63/00

    CPC分类号： B01D61/18 ,  B01D61/28 ,  B01D63/08 ,  B01D63/088 ,  B01D2313/22 ,  B01D2313/345 ,  B01D2313/50 ,  B01L3/502715 ,  B01L3/565 ,  B01L2200/027 ,  B01L2200/0631 ,  B01L2300/0681 ,  B01L2300/0816 ,  B01L2300/0877 ,  B01L2400/0421 ,  G01N1/405 ,  G01N30/02 ,  G01N2001/4016 ,  G01N2030/009 ,  B01D15/363

    摘要： Microliter scale solid phase extraction devices for preparing analytes in microliter volumes are disclosed. A re-useable device is provided in cartridge form that includes a central containment member with a containment bore that holds as little as 1 to 5 μl or less of a solid phase material that binds the analyte. The containment bore is enclosed on either side by a porous membrane that has an inner portion exposed for fluid flow and a peripheral portion that is sealed against fluid flow. The seal is formed by engaging the periphery of the porous membranes between sealing surfaces of the central containment member and corresponding sealing surfaces on first and second conduit assemblies that comprise the remainder of the cartridge. A non-reuseable device is provided in “chip” form, which includes a porous filter sandwiched between top and bottom wafers each having a plurality corresponding input and output conduits for a plurality of samples.

    摘要翻译： 公开了用于以微升体积制备分析物的微量级固相萃取装置。 以盒形式提供可重复使用的装置，其包括具有容纳孔的中央容纳构件，容纳孔保持少至1至5个或更少的固定分析物的固相材料。 容纳孔被两侧封闭，多孔膜具有暴露于流体流动的内部部分和与流体流动密封的周边部分。 密封件是通过将多孔膜的周边接合在中央容纳构件的密封表面和包括该盒的其余部分的第一和第二导管组件上的相应的密封表面之间而形成的。 不可再利用的装置以“芯片”形式提供，其包括夹在顶部和底部晶片之间的多孔过滤器，其各自具有用于多个样品的多个相应的输入和输出导管。

    Membrane module for the separation of hydrogen and method for the production thereof
    83.
    发明申请
    Membrane module for the separation of hydrogen and method for the production thereof 失效
    用于分离氢的膜组件及其生产方法

    公开(公告)号：US20060162563A1

    公开(公告)日：2006-07-27

    申请号：US10523088

    申请日：2003-07-31

    申请人： Thomas Poschmann

    发明人： Thomas Poschmann

    IPC分类号： B01D53/22

    CPC分类号： B01D63/08 ,  B01D53/22 ,  B01D65/003 ,  B01D2313/04 ,  B01D2313/143 ,  C01B3/505 ,  C01B2203/0405 ,  C01B2203/047 ,  C01B2203/0475 ,  H01M8/0612 ,  H01M8/0687 ,  Y02P70/56 ,  Y10S55/05

    摘要： A membrane module for the separation of hydrogen is configured for parallel flows and contains a plurality of planar membrane cells which respectively comprise two hydrogen-selective planar membranes respectively surrounded by a flat membrane frame. An air-permeable distancing layer is arranged between the membranes for removal of the permeate gas and a supply frame surrounding a supply area for the reformate gas. All membrane frames and supply frames have the same outer dimensions and form a stack with planar side surfaces. Two membrane frames of each membrane cell have protruding edges directed towards each other, enabling them to enter into contact with each other, except for at least one first opening towards a side surface of the stack. The supply frame is disposed, except for second and third openings towards the side surfaces of the stack, in a closely adjacent manner to the edges of the membrane frame of two neighboring membrane cells. The outsides of all membrane frames and supply frames, except for first, second and third openings, are welded or soldered to each other in a gas-tight manner.

    摘要翻译： 用于分离氢的膜组件被配置用于平行流，并且包含分别包括由平膜框架围绕的两个氢选择性平面膜的多个平面膜电池。 透气隔离层设置在膜之间以除去渗透气体和围绕重整气体的供应区域的供给框架。 所有膜框架和供应框架具有相同的外部尺寸并形成具有平坦侧表面的堆叠。 每个膜元件的两个膜框架具有朝向彼此的突出边缘，使得它们能够彼此接触，除了朝向堆叠的侧表面的至少一个第一开口。 除了朝向堆叠的侧表面的第二和第三开口之外，供应框架以与两个相邻膜单元的膜框架的边缘紧密相邻的方式设置。 除了第一，第二和第三开口之外，所有隔膜框架和供应框架的外侧以气密方式彼此焊接或焊接。

    Ultrasonically cleaned membrane filtration system
    85.
    发明授权
    Ultrasonically cleaned membrane filtration system 失效
    超声波清洗膜过滤系统

    公开(公告)号：US07008540B1

    公开(公告)日：2006-03-07

    申请号：US10434480

    申请日：2003-05-08

    申请人： Linda Kay Weavers ,  Harold W. Walker ,  Mikko O. Lamminen ,  Dong Chen

    发明人： Linda Kay Weavers ,  Harold W. Walker ,  Mikko O. Lamminen ,  Dong Chen

    IPC分类号： B01D65/02

    CPC分类号： B01D65/02 ,  B01D63/02 ,  B01D63/06 ,  B01D63/08 ,  B01D65/08 ,  B01D2313/34 ,  B01D2321/2075

    摘要： A filtration system and a method of cleaning a particle and/or colloidal fouled filtration membrane are provided. The filtration system includes at least one filtration membrane disposed in a casing, and at least one ultrasonic transducer in direct contact with a fluid to be filtered. Ultrasonic energy is emitted by the ultrasonic transducer in the direction of the filtration membrane. Dislodged particles cleaned by the ultrasonic energy from the filtration membrane are carried away in a cross-flow stream and wasted or recycled back to the beginning of the treatment process. The ultrasonic transducer can be fixed or movable. The filtration system can use different filtration membrane configurations such as, but not limited to, tubular, flat sheet, hollow fiber and spiral wound membranes.

    摘要翻译： 提供了一种过滤系统和清洁颗粒和/或胶体污垢过滤膜的方法。 过滤系统包括设置在壳体中的至少一个过滤膜和至少一个与待过滤流体直接接触的超声换能器。 超声波能量由超声波换能器沿过滤膜的方向发射。 通过超声能量从过滤膜清洗的移出的颗粒在交叉流中流出并被浪费或循环回到处理开始阶段。 超声波换能器可以固定或移动。 过滤系统可以使用不同的过滤膜构造，例如但不限于管状，平板，中空纤维和螺旋缠绕膜。

    Method for the manufacture of a composite filter plate
    87.
    发明申请
    Method for the manufacture of a composite filter plate 失效
    复合过滤板的制造方法

    公开(公告)号：US20050280178A1

    公开(公告)日：2005-12-22

    申请号：US11150069

    申请日：2005-06-10

    申请人： Ralph Stankowski ,  James Vigna

    发明人： Ralph Stankowski ,  James Vigna

    IPC分类号： B01D25/21 ,  B01D29/01 ,  B01D35/30 ,  B01D63/08 ,  B29C45/16 ,  B29C70/76 ,  B29C31/00

    CPC分类号： B01D63/081 ,  B01D29/012 ,  B01D35/30 ,  B01D63/08 ,  B01D2313/025 ,  B29C45/1671 ,  B29C70/763 ,  B29L2031/14 ,  B33Y70/00 ,  B33Y80/00 ,  Y10S264/48

    摘要： A method is disclosed for making a substantially flat filter plate comprising a substantially flat polymer, preferably thermoplastic, frame and substantially flat filter material seated fixedly therein. The method is characterized by its reduced exposure of the filter material to adverse mechanical stresses resultant of polymeric frame formation and curing. Toward such end, the substantially flat polymeric frame is formed in at least two separate steps, in the course of which said substantially flat filter material is incorporated. The portion formed first serves as a mechanical restraint, insulating the later incorporated filter material from any propensity of the second “embedding” portion to shrink or otherwise warp during its formation.

    摘要翻译： 公开了一种用于制造基本平坦的过滤板的方法，该过滤板包括基本上平坦的聚合物，优选热塑性框架和固定地固定在其中的基本平坦的过滤材料。 该方法的特征在于其过滤材料暴露于聚合物框架形成和固化所产生的不利的机械应力。 为此，基本上平坦的聚合物框架形成在至少两个分开的步骤中，其中结合有基本平坦的过滤材料。 首先形成的部分用作机械约束，使后续结合的过滤材料与第二“嵌入”部分的任何倾向绝缘，以在其形成期间收缩或以其它方式翘曲。

    Particulate filter and method of use
    88.
    发明申请
    Particulate filter and method of use 审中-公开
    颗粒过滤器和使用方法

    公开(公告)号：US20050247105A1

    公开(公告)日：2005-11-10

    申请号：US11060080

    申请日：2005-02-16

    申请人： David Dikken ,  Robert Nelson ,  Lloyd Keleny ,  Mike Kiester ,  Andrew Dahlgren

    发明人： David Dikken ,  Robert Nelson ,  Lloyd Keleny ,  Mike Kiester ,  Andrew Dahlgren

    IPC分类号： B01D63/02 ,  B01D63/08 ,  B01D69/02 ,  B01D69/10 ,  B01D71/36 ,  G01N1/00 ,  G01N1/22 ,  G01N5/02 ,  G01N15/00 ,  G01N15/06 ,  G01N35/00

    CPC分类号： G01N5/02 ,  B01D39/1692 ,  B01D63/021 ,  B01D63/08 ,  B01D69/02 ,  B01D69/10 ,  B01D71/36 ,  B01D2313/025 ,  B01D2325/00 ,  B01D2325/02 ,  B01D2325/04 ,  B01D2325/20 ,  B01D2325/38 ,  G01N1/2205 ,  G01N1/2252 ,  G01N15/0618 ,  G01N35/00732 ,  G01N2015/0046 ,  G01N2035/00772

    摘要： A particulate filter particularly suited for analytical gravimetric weighing applications is disclosed. The particulate filter includes a polytetrafluoroethylene (PTFE) media supported by a ring and yields stable microgram and submicrogram weighing results. The support ring may be PTFE, metal foil, or another non-hygroscopic polymer such that the mass of the filter does not vary with changes in atmospheric moisture. The filter simplifies the discharge of electrostatic charge buildup such that when a conductive filter media is combined with a conductive ring device, the discharge may be accomplished by placing the filter on a grounded weighing pan or other surface. The particulate filter can simplify filter identification by including identification symbols imprinted on each side of the filter media. Due to the chemically inert qualities of its components, the particulate filter is particularly suited for extraction techniques used during the detection of polycyclic hydrocarbons as is conducted in emissions and ambient air testing.

    摘要翻译： 公开了一种特别适用于分析重量称重应用的微粒过滤器。 颗粒过滤器包括由环支撑的聚四氟乙烯（PTFE）介质，并产生稳定的微克和亚微米的称重结果。 支撑环可以是PTFE，金属箔或另一种非吸湿性聚合物，使得过滤器的质量不随大气水分的变化而变化。 该滤波器简化了静电电荷积聚的放电，使得当导电过滤介质与导电环装置组合时，放电可以通过将过滤器放置在接地的称重盘或其它表面上来实现。 颗粒过滤器可以通过包括印在过滤介质两侧的识别符号来简化过滤器识别。 由于其组分的化学惰性特性，颗粒过滤器特别适用于在排放和环境空气测试过程中进行的多环烃检测期间使用的萃取技术。