Flanged pipe joints

US4121858A · kind A · utility

Inventor

• Wilhelm Schulz · Krefeld, DE

Key dates

• Filing date: Feb 24, 1977
• Grant date: Oct 24, 1978
• Expiry date: Feb 24, 1997

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S285/917
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The specification describes a pipe joint suitable for fluid conducting pipework in which there are inner and outer tubes defining a jacket for fluid heating or cooling medium. The joint comprises a gasket shaped to provide continuous annular seals around the inner tube and the passageways along which heating or cooling medium flows through the joint. The gasket and the pipe flanges with which the gasket cooperates define fluid-receiving channels which are located between the sealing zones around the inner tube and the passages for the heating or cooling medium so as to receive fluid which may leak past those zones and allow it to escape radially outwardly from the joint thus preventing leaked heating or cooling medium from entering the fluid stream in the inner tube, or vice versa.