Patent ID: 8011106
Filing Date: 2011-09-06
Classification: G01B,Y10S

Abstract:
1. A first apparatus comprising means for centering a stepped device not having external threads or pawls in an end of a pipe, and means for generating a first laser beam from said device along a longitudinal axis of said pipe, the first apparatus further comprising means for rotating a first pattern generated by said first laser beam; the first apparatus further comprising a second apparatus comprising means for centering a stepped device not having external threads or pawls in an end of a pipe; and means for generating a second laser beam from said device along a longitudinal axis of said pipe, the second apparatus further comprising means for rotating a second pattern generated by said second laser bean; the first apparatus further comprising: means for using said first apparatus in a first pipe and projecting a first pattern in a direction; means for using said second apparatus in a second pipe and projecting a second pattern in said direction; and means for rotating each of said first apparatus and said second apparatus to align a portion of said first pattern from said first apparatus and to align a portion of said second pattern from said second apparatus with each other forming a substantially straight co-linear intersection of said first pattern and said second pattern.