Threaded connector for pipe
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 17, 2002
Grant Date -
N/A
app pub date -
Oct 31, 2000
filing date -
Oct 31, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pipe connector for offshore risers has conical thread forms. The connector has a pin with a nose, an external shoulder, and conical first and second pin threaded sections. The first and second pin threaded sections are axially separated by a pin intermediate section that is free of threads. The first and second pin threaded sections are formed on a single continuous taper and on a continuous helix. The intermediate section is also conical and at the same taper as the pin first and second threaded sections. The connecter has a box with a rim, an internal base, and a conical receptacle between the rim and the base. The conical receptacle has first and second box threaded sections that make up with the pin threaded sections. The box also has an intermediate section between its first and second threaded connections that is free of threads. The intermediate sections make up with radial interference. Upper and lower metal-to-metal sealing surfaces are located at the nose and at the base of the pin.
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