E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
255/8
E21B 10/26 (2006.01) E21B 7/20 (2006.01) E21B 10/38 (2006.01) E21B 10/40 (2006.01) E21B 10/66 (2006.01) E21B 21/12 (2006.01)
Patent
CA 2018445
Abstract of the Disclosure A drill tool comprises a drill head and a guide operably connected to the drill head. A tube surrounds the guide. The guide and tube include mutually engageable surfaces for transmitting axial and rotational forces from the guide to the tube. By transmitting rotational forces, it is less likely that the tube will become stuck within the overburden.
Jansson Kjell-Ove
Lundahl Bjorn
Gowling Lafleur Henderson Llp
Jansson Kjell-Ove
Lundahl Bjorn
Sandvik Aktiebolag
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