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    • 2. 发明申请
    • Drainage pipe slope measuring device
    • 排水管坡度测量装置
    • US20070246116A1
    • 2007-10-25
    • US11706313
    • 2007-02-15
    • B. David PeakDavid BranscombKen HopkinsWes Bowden
    • B. David PeakDavid BranscombKen HopkinsWes Bowden
    • F16L55/00
    • F16L1/06E03C1/122E03C2001/028E03F3/06E03F7/12G01C9/18G01C15/00
    • The drainage pipe slope measuring device includes a housing having an upper surface and a lower surface. The upper surface has an opening formed therethrough, the lower surface preferably having a substantially concave or arcuate cross-sectional contour adapted for flush mounting against the drainage pipe. A spirit level vial is mounted within the housing and is positioned adjacent the opening. The vial is preferably formed from at least partially transparent or translucent material and is adapted for containing a liquid and a gas bubble. Indicia is formed on the container and is visible through the opening so that, when the housing is mounted on the drainage pipe, a position of the gas bubble with respect to the indicia provides the user with a visual indication of the slope of the drainage pipe. The vial is preferably divided into separately colored regions to provide the user with further visual contrast.
    • 排水管坡度测量装置包括具有上表面和下表面的壳体。 上表面具有通过其形成的开口,下表面优选具有适于平齐地安装在排水管上的基本上凹入或弓形的横截面轮廓。 一个液位小瓶安装在外壳内并且位于开口附近。 小瓶优选由至少部分透明或半透明的材料形成,并适于容纳液体和气泡。 标记形成在容器上并且通过开口可见,使得当壳体安装在排水管上时,气泡相对于标记的位置为使用者提供了排水管的斜率的视觉指示 。 小瓶优选分为独立的彩色区域,以向使用者提供进一步的视觉对比。