Cassette filter

US7135052B2 · kind B2 · utility

Assignee

• Carl Freudenberg KG · DE

Inventors

• Michael Meierhoefer · Hemsbach, DE
• Renate Tapper · Bensheim, DE
• Thomas Caesar · Weinheim, DE
• Heiko Knust · Hemsbach, DE
• Thorsten Schmitt · Weinheim, DE
• Norbert Kuck · Hemsbach, DE
• Rainer Kaffenberger · Reichelsheim, DE

Key dates

• Filing date: Jun 14, 2002
• Grant date: Nov 14, 2006
• Expiry date: Nov 28, 2022

Classification

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

Abstract

A cartridge filter includes a folded package including filter material and a frame holding the folded package. The frame includes a plurality of profiled strips having identical profiles, and each having two ends. The frame also includes a plurality of corner joints, each disposed at an end of a respective profiled strip. Each corner joint includes an end cap for engaging pair wise with an end cap of an adjacent one of the plurality of corner pieces.