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    Devices and methods for microfluidic chromatography
    5.
    发明申请
    Devices and methods for microfluidic chromatography 审中-公开
    微流体色谱的装置和方法

    公开(公告)号：US20070138076A1

    公开(公告)日：2007-06-21

    申请号：US11305833

    申请日：2005-12-16

    申请人： Antoine Daridon ,  Jiang Huang ,  Oai Phi ,  Andy May

    发明人： Antoine Daridon ,  Jiang Huang ,  Oai Phi ,  Andy May

    IPC分类号： B01D15/08

    CPC分类号： G01N30/6004 ,  B01D15/14 ,  B01D15/18 ,  G01N30/6026 ,  G01N30/603 ,  G01N30/6047 ,  G01N30/6095 ,  G01N30/72

    摘要： Embodiments of the invention provide devices, methods and systems for performing microfluidic chromatography. Particular embodiments provide microfluidic chromatography column devices which can perform chemical separation using small sample volumes and low pressure differentials across the column. One embodiment provides a microfluidic chromatography column device comprising a first, second and third capillary tube. A chromatographic packing is disposed in the second tube with a first and second support layer disposed on opposite ends of the second tube. The support layers are disposed in a substantially flat orientation within the tube. An external coupling joins the tubes such that the tubes are fluidically sealed. The device is configured to have a fluidic resistance such that a pressure differential across the column of less than about 10 psi produces a flow rate through the device of at least about 0.5 ml/min for a liquid solution.

    摘要翻译： 本发明的实施方案提供用于进行微流体色谱的装置，方法和系统。 具体实施方案提供了可以使用小样品体积和穿过该柱的低压差进行化学分离的微流体色谱柱装置。 一个实施方案提供了包含第一，第二和第三毛细管的微流体色谱柱装置。 色谱填料设置在第二管中，第一和第二支撑层设置在第二管的相对端上。 支撑层在管内以基本平坦的方向设置。 外部联接器连接管子，使得管子是流体密封的。 该装置被配置为具有流体阻力，使得小于约10psi的柱上的压力差产生液体溶液通过装置的流速为至少约0.5ml / min。

    Hand held cleaning utensil
    7.
    发明申请
    Hand held cleaning utensil 审中-公开
    手持清洁用具

    公开(公告)号：US20060070197A1

    公开(公告)日：2006-04-06

    申请号：US10535594

    申请日：2003-09-19

    申请人： Andy May ,  Daniel Neumann

    发明人： Andy May ,  Daniel Neumann

    IPC分类号： A46B5/00 ,  A47L13/42 ,  B25G1/00

    CPC分类号： B25G1/04

    摘要： The present invention provides a hand held cleaning utensil having an extendable elongate handle with a working head at one end of the handle, the handle being assembled of at least a first length to which the working head is mounted and a second length that is coupled to the end of the first length remote from the working head, and which is adapted to be moved from a first position, in which the second length is stowed alongside or substantially coaxial with the first length but not obstructing the working head so that the utensil may be used, to a second position, in which the second length is substantially aligned with the first length to provide an extended overall handle length.

    摘要翻译： 本发明提供了一种手持式清洁用具，其具有可延伸的细长手柄，在手柄的一端具有工作头，手柄至少安装有工作头的第一长度，第二长度被耦合到 所述第一长度的端部远离所述工作头部，并且其适于从第一位置移动，其中所述第二长度与所述第一长度旁边或基本上同轴地存放，但不妨碍所述工作头，使得所述器具可以 被使用到第二位置，其中第二长度基本上与第一长度对齐以提供延长的整体手柄长度。