Expandable coupling

Details Expandable coupling Expandable coupling

E - Fixed Constructions

21

B

E21B 17/08 (2006.01) E21B 17/042 (2006.01) E21B 43/10 (2006.01) F16L 13/14 (2006.01)

Patent

CA 2440619

An expandable tubular coupling (10) includes first and second thread portions (12,14) each comprising a plurality of inter-engaging teeth (20,22), wherein at least one tooth on the first thread portion (12) engages a corresponding tooth on the second thread portion (14) and the remainder of said inter-engaging teeth (20,22) define respective gaps (32) therebetween.

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