Resistance to fatigue of a threaded tubular connection

Details Resistance to fatigue of a threaded tubular connection Resistance to fatigue of a threaded tubular connection

2004-12-02

2010-12-07

Dunwoody, Aaron (Department: 3679)

Pipe joints or couplings

Particular interface

Tapered

C285S334000, C285S355000, C285S390000

Reexamination Certificate

active

07845687

ABSTRACT:
A method to improve fatigue resistance of a threaded tubular connection. Radial interference between a male and female threading operates between stabbing flanks inclined at about 27° with respect to an axis of the threadings, wherein mutual contacting surfaces are radially spaced from a root of the male threading, which is defined by a concave rounded portion.

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