E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 17/043 (2006.01) E21B 17/046 (2006.01) F16L 13/02 (2006.01)
Patent
CA 2490496
The invention concerns a locking mechanism for securing together a first and a second part of a while drilling tool, said locking mechanism comprising a first washer designated to be fixed to said first part of the tool and a second washer designated to be fixed to said second part of said tool, said first and second washers being welded together in order to prevent any unwanted rotation between said first and second parts.
Schlumberger Canada Limited
Smart & Biggar
LandOfFree
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