Patent ID: 8905699
Filing Date: 2014-12-09
Classification: E21B,Y10S

Abstract:
1. An alignment and pretensioning apparatus comprising: a frame; a boom pivotally movable between a first position and a second position; a lever having a first and second portion, the lever pivotally connected to the boom; an arm pivotally connected at one end to the first portion of the lever, the arm movable between a stowed position and a deployed position; a gripper assembly affixed to an opposite end of the arm, the gripper assembly for gripping a diameter of a pipe; a link having a first end pivotally connected at one end to the second portion of the lever, the link having a second end pivotally connected to the frame; and, a tensioning assembly having one end connected to the boom and an opposite end connected to the frame, the tensioning assembly configured to apply a tension to the boom.