Device for detecting membrane leaks in a diaphragm pump

US6498496B1 · kind B1 · utility

Assignee

• Carl Freudenberg · DE

Inventors

• Heinz Keller · Davos, CH
• Gerhard Rohner · Hemsbach, DE
• Jens Plechinger · Weinheim, DE
• Hans-Juergen Diekmann · Rimbach, DE
• Eberhard Bock · Prüm, DE

Key dates

• Filing date: Aug 21, 2000
• Grant date: Dec 24, 2002
• Expiry date: Nov 6, 2020

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05C2225/04
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Device to detect leaks and fatigue in membranes wherein the membrane consists of at least two membrane layers, and wherein at least one of the membrane layers includes a conductor on its inner surface that causes an alteration to a measured value in case of an alteration to either the membrane or the conductor.