Filter element

US6039779A · kind A · utility

Assignee

• Filterwerk Mann & Hummel GmbH · DE

Inventors

• Thomas Butz · Mannheim, DE
• Ralf Kaller · Kornwestheim, DE
• Guenther Kissel · Neustadt, DE
• Gehard Mayer · Pleidelsheim, DE
• Volker Koch · Reckersdorf, DE
• Werner Schnabel · Nattheim, DE

Key dates

• Filing date: May 7, 1998
• Grant date: Mar 21, 2000
• Expiry date: May 7, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S55/31
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A filter element, in particular for purifying the intake air of an internal combustion engine, constituted by a non-woven fabric or paper folded in the manner of a concertina and secured as a flat plate in a frame (10). In order to increase the stability of this filter medium (11), strut segments (19, 20) are disposed on the frame, which engage in folds in the plate and are bonded thereto.