Spring adjustment system for drill string tool

Details Spring adjustment system for drill string tool Spring adjustment system for drill string tool

E - Fixed Constructions

21

B

255/28

E21B 17/00 (2006.01) E21B 17/07 (2006.01) E21B 17/08 (2006.01) F16D 3/06 (2006.01)

Patent

CA 1062240

SPRING ADJUSTMENT SYSTEM FOR DRILL STRING TOOL Abstract of the Disclosure A torque transmitting drill string tool is provided that includes an outer member and an inner member telescopically arranged. Spline means between said outer member and said inner member transmits torque. A spring means is positioned between the outer member and the inner member. Means are provided for adjusting the position and/or pre-load of the spring means without disassembling the tool. -1a-

279799

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