发明授权
US06487781B2 Bore path alignment system 失效
孔径对准系统

  • 专利标题: Bore path alignment system
  • 专利标题(中): 孔径对准系统
  • 申请号: US09825095
    申请日: 2001-04-02
  • 公开(公告)号: US06487781B2
    公开(公告)日: 2002-12-03
  • 发明人: Clifford C. Johnson
  • 申请人: Clifford C. Johnson
  • 主分类号: G01C500
  • IPC分类号: G01C500
Bore path alignment system
摘要:
A bore path alignment system for accurately determining a desired bore pitch for a ground-boring device. The bore path alignment system includes a first pole, a first tube adjustably positioned upon the first tube, a guide tube with a pitch instrument pivotally attached to the first tube, a second pole, and a second tube including a spotter strip adjustably positioned upon the first tube. The user positions the first pole into the ground surface where boring is to begin and the second pole above a location where a specific depth is required. The user positions the second tube containing the spotter strip according to the depth in the second location. The user then adjusts the angle of the guide tube until the spotter strip is aligned thereby allowing the user to determine the required boring pitch by the pitch instrument.
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