Coupling for interconnecting pipe sections and pipe section...

Details Coupling for interconnecting pipe sections and pipe section... Coupling for interconnecting pipe sections and pipe section...

F - Mech Eng,Light,Heat,Weapons

16

L

285/63

F16L 15/00 (2006.01) E21B 17/043 (2006.01) E21B 17/08 (2006.01)

Patent

CA 1148193

A B S T R A C T COUPLING FOR INTERCONNECTING PIPE SECTIONS, AND PIPE SECTION FOR WELL DRILLING OPERATIONS Screw thread couplings for pipe sections in well drilling operations are provided with locking shoulders for locking the couplings against loosening due to impacts exerted thereon. The shoulders co-operate with means for guiding the locking shoulders to their locking position at the end of the coupling operation.

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