Bolted pipe joint releasable by remote control and combination tool therefor

US4953580A · kind A · utility

Assignees

• Siemens Aktiengesellschaft · DE
• Deutsche Gesellschaft fur Wiederaufarbeitung von Kernbrennstoffen mbH · DE

Inventors

• Hans-Peter Schabert
• Erich Strickroth · Buckenhof, DE
• Erwin Laurer

Key dates

• Filing date: Jul 15, 1988
• Grant date: Sep 4, 1990
• Expiry date: Jul 15, 2008

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S285/92
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A bolted pipe joint releasable by remote control includes two flanges each eing disposed at a respective one of two pipe ends. A centering aid cooperates with both of the flanges. A seal is provided for the pipe ends. A fastening screw presses the two flanges together. The fastening screw has first and second threaded regions being successively engaged upon pressing the flanges together. The first threaded region has a substantially greater pitch than the second threaded region.