利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

9 条记录 (耗时 0.024 秒)

    Method and apparatus for detecting the location of a leak in a pipe
    6.
    发明授权
    Method and apparatus for detecting the location of a leak in a pipe 有权
    用于检测管道中的泄漏位置的方法和装置

    公开(公告)号：US06351985B1

    公开(公告)日：2002-03-05

    申请号：US09479156

    申请日：2000-01-07

    申请人： Leslie William Bedwell

    发明人： Leslie William Bedwell

    IPC分类号： G01M304

    CPC分类号： G01M3/022 ,  G01M3/2853

    摘要： Apparatus for detecting a leak in a pipe, and determining the location of that leak, comprises a cover plate for an opening into the pipe to be tested, such as an end cap for threading onto the end of a pipe, the cover plate having an aperture through which extends a flexible hose having an inflatable bladder at its free end. The hose is calibrated from its free end and is pushed into the pipe through the aperture for a known distance, whereafter the bladder is inflated by air supplied under pressure to the hose, so as to seal the pipe between the bladder and the cover plate. Air under pressure is then supplied to the sealed portion of the pipe and the pressure drop within that sealed portion is monitored over a period of time. By repeatedly performing the method but each time moving the hose further into the pipe, the location of the leak may accurately be determined. Instead of calibrating the hose, a sonde device may be mounted on the free end of the hose and an above ground receiver for signals transmitted from the sonde is used to determine the position of the sonde and so of the free end of the pipe.

    摘要翻译： 用于检测管道中的泄漏并确定泄漏位置的装置包括用于进入待测试管道的开口的盖板，例如用于穿过管道端部的端盖，所述盖板具有 孔通过其在其自由端延伸具有可膨胀囊的柔性软管。 软管从其自由端校准，并通过孔径被推入管道已知距离，然后通过在压力下供给软管的空气使气囊膨胀，以便密封气囊和盖板之间的管。 然后将压力下的空气供给到管道的密封部分，并且在一段时间内监测该密封部分内的压降。 通过重复执行该方法，但是每当将软管进一步移动到管中时，可以准确地确定泄漏的位置。 替代校准软管，可以在软管的自由端上安装探空仪装置，并且使用用于从探空仪传送的信号的地面接收器来确定探头的位置以及管的自由端的位置。

    Nanoporous materials and methods of formation thereof
    7.
    发明申请
    Nanoporous materials and methods of formation thereof 审中-公开
    纳米材料及其形成方法

    公开(公告)号：US20070100109A1

    公开(公告)日：2007-05-03

    申请号：US10520252

    申请日：2002-08-15

    申请人： Nigel Hacker ,  Scott Leffert ,  Lisa Figge ,  Richard Spear ,  William Bedwell ,  Teresa Ramos

    发明人： Nigel Hacker ,  Scott Leffert ,  Lisa Figge ,  Richard Spear ,  William Bedwell ,  Teresa Ramos

    IPC分类号： C08G77/12

    CPC分类号： H01L21/02126 ,  C08G77/12 ,  C08G77/20 ,  H01B3/46 ,  H01L21/02203 ,  H01L21/02216 ,  H01L21/02282 ,  H01L21/31695

    摘要： Low dielectric materials are described herein that comprise a plurality of pores or nanopores in addition to the ultrananopores. It is further contemplated that the low dielectric materials described herein will have a dielectric constant of less than about 3. The dielectric materials are fromed from polymer compositions, wherein the polymer compositions comprise a plurality of monomers and wherein at least one monomer comprises a radical precursor bonded to a structural precursor. Further, methods of forming dielectric materials from polymer compositions are presented. The figure shows the chemical structure for a methyl/t-butyl Low organic Content/Low Organic Siloxane Polymer.

    摘要翻译： 本文描述的低电介质材料除了超极子纳米孔之外还包含多个孔或纳米孔。 进一步预期，本文所述的低电介质材料将具有小于约3的介电常数。介电材料来自聚合物组合物，其中聚合物组合物包含多个单体，并且其中至少一个单体包含自由基前体 结合到结构前体。 此外，提出了从聚合物组合物形成电介质材料的方法。 该图显示了甲基/叔丁基低有机含量/低有机硅氧烷聚合物的化学结构。