Multilayered gasket with eyelit

US6565099B1 · kind B1 · utility

Assignee

• SGL Carbon AG · DE

Inventors

• Oswin Öttinger · Meitingen, DE
• Otto Mederle · Meitingen, DE

Key dates

• Filing date: Feb 4, 1999
• Grant date: May 20, 2003
• Expiry date: Feb 4, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16L23/18
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A flat gasket includes a gasket body and at least one eyelet enclosing the gasket body. The gasket body is formed of a pressure-resistant core which is resistant to temperatures of at least 150° C. and a covering that completely covers flat outer sides of the core and is made of a gas-tight foil of an organic polymer having a long-term temperature resistance of at least 150° C. The eyelet or eyelets enclose the gasket body with a gas-tight joining. The core is formed of a plastic or elastomer reinforced with fibers and/or fillers, or it is formed of mica or graphite. If mica or graphite are used, the core is preferably formed of layers disposed alternately on top of one another and formed of graphite foils and metal foils or layers of mica and metal foils.