Expandable coupling

Details Expandable coupling Expandable coupling

2006-09-19

2006-09-19

Bochna, David (Department: 3679)

Metal working

Method of mechanical manufacture

Assembling or joining

C029S507000, C029S456000

Reexamination Certificate

active

07107663

ABSTRACT:
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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