Directional rod pusher

Details Directional rod pusher Directional rod pusher

F - Mech Eng,Light,Heat,Weapons

16

L

255/47

F16L 1/00 (2006.01) E21B 7/06 (2006.01) E21B 7/26 (2006.01) E21B 19/086 (2006.01)

Patent

CA 2012933

DIRECTIONAL ROD PUSHER ABSTRACT OF THE DISCLOSURE The present invention comprises a rod pusher device which moves a drill string having a directional boring bit at its leading end. The invention includes a conversion device, such as a rigid link, mounted between a fixed point on the hydraulic thrust cylinder or frame assembly and the moveable drill string to automatically and simultaneously convert the axial movement of the thrust cylinder and drill string into a combined axial and rotational movement of the drill string. The link is removable so that the push rod operator can read- ily select between axial movement of the drill string or combined axial and rotational movement, and thereby control the path of the borehole.

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