Swabbing mandrel

Details Swabbing mandrel Swabbing mandrel

E - Fixed Constructions

21

B

15/11, 166/56, 1

E21B 37/00 (2006.01) E21B 37/10 (2006.01)

Patent

CA 1326208

TITLE SWABBING MANDREL ABSTRACT OF THE DISCLOSURE A swabbing mandrel for use in swabbing pipe or tubing comprised of an elongated core, a shell, and means to fasten the shell to said elongated core, the shell having a generally hollow cylindrical shape, the shell having an upper interior diameter and a lower interior diameter, the lower interior diameter of said shell being greater than the upper interior diameter of said shell, an interior shoulder formed within said shell between the upper interior diameter and the lower interior diameter, an elongated core, said elongated core having a top and a base, said elongated core having its greatest outer diameter proximate the base, said greatest outer diameter being greater than the upper interior diameter of the shell but less than the lower interior diameter of said shell, the interior shoulder of said shell adapted to be seated on the outer diameter, proximate the base of the core, and means for fastening said shell to said core in said seated position.

604398

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