Filter element

US7059481B2 · kind B2 · utility

Assignee

• MANN+HUMMEL GmbH · DE

Inventors

• Stefan Kochert · Waiblingen, DE
• Klaus Moessinger · Löwenstein, DE
• Bernd Spaeth · Ulm, DE

Key dates

• Filing date: Jun 20, 2003
• Grant date: Jun 13, 2006
• Expiry date: Sep 16, 2023

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2275/206
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A filter element (10) having a supporting body (11) around which a filter medium (12) is wound. The filter medium (12) is a weldable material and is sealingly affixed to the supporting body (11) two radial weld seams (18) and/or a longitudinal weld seam (19). The welding of the filter medium (12) onto the supporting body (11) eliminates the need to produce prefabricated tubes of filter medium, and enables the filter medium to be processed directly from a roll.