Diaphragm bellows produced from profiled metal strip

US9291263B2 · kind B2 · utility

Assignee

• WESTFALIA METALLSCHLAUCHTECHNIK GMBH & CO. KG · DE

Inventors

• Matthias Weiss · Hilchenbach, DE
• Karl-Heinz Münker · Hilchenbach, DE
• Dietmar Baumhoff · Olpe, DE
• Andreas Gerhard · Wenden, DE
• Karsten Schenk · Treysa, DE
• Michael Henkelmann · Hilchenbach, DE
• Oliver Selter · Attendorn, DE
• Stefan Hauk · Hilchenbach, DE

Key dates

• Filing date: Nov 22, 2011
• Grant date: Mar 22, 2016
• Expiry date: Dec 23, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/12326
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A profiled metal strip for a diaphragm bellows is made from a strip material having at least one border which is subjected to reverse bending. Such a metal strip is wound to produce a diaphragm bellows, with abutting borders of neighboring turns being connected with one another by a material joint, such as a welding seam.