Importance

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Abstract

Disclosed is a deformable sleeve that includes a bulbing portion, a first end portion, a second end portion, a transition portion defining a groove on the outer surface of the sleeve and located between the bulbing portion and the first end portion so that upon application of a compressive load to the deformable sleeve the bulbing portion bulbs to form a flange that begins in the transition portion so that the transition between the flange and the first end portion is non-canted. Also disclosed is a method for manufacturing such a deformable sleeve that includes applying a mechanical treatment to the a flanged end of a sleeve to deform the flanged end until its outer diameter is equal to the outer diameter of the rest of the sleeve, thereby forming the first end portion.

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First Claim