DEVICE AND METHOD FOR PULLING PIPE
    43.
    发明申请

    公开(公告)号:US20190323628A1

    公开(公告)日:2019-10-24

    申请号:US16392008

    申请日:2019-04-23

    Inventor: John A. Olander

    Abstract: A pipe puller system and methods of pipe extraction are shown. In one example a pipe to be replaced is pulled by attaching a pulling force to multiple locations along a length of the pipe. In one example pulling forces can be varied between different attachment locations to better control or eliminate tearing of the pipe. In one example, a pipe loosening device may be used prior to pulling the pipe from the ground.

Patent Agency Ranking