Pipe joint

US6155613A · kind A · utility

Assignee

• Mannesmann AG · DE

Inventors

• Erich Quadflieg · Krefeld, DE
• Christoph Bunsen · Hilden, DE
• Thomas Gigowski · Grevenbroich, DE
• Friedrich Lenze · Ratingen, DE
• Martin Schluter · Schallstadt, DE

Key dates

• Filing date: Apr 2, 1997
• Grant date: Dec 5, 2000
• Expiry date: Apr 2, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S285/906
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A pipe joint with a sleeve element and with a spigot element configured to be threadedly connected together to collectively absorb the load experienced by the joint over the threaded sections of the sleeve and spigot. By suitably selecting the leads and tooth gaps in the sleeve or spigot, it is possible for the guide flank at one thread end to be braced against the load flank at the other thread end thereby effecting maximum bracing at the edges of the thread and decreasing toward the thread center.