Multi functional filter

US7550023B2 · kind B2 · utility

Assignee

• Ultrafilter International AG · DE

Inventors

• Hans-Michael Schuster · Haan, DE
• Klaus Eimer · Ratingen, DE
• Dieter Patzig · Ratingen, DE

Key dates

• Filing date: Mar 4, 2004
• Grant date: Jun 23, 2009
• Expiry date: Dec 19, 2024

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2273/14
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

In a filter, a rotatable connection flange with two kidney-shaped openings and a diametral web between the openings is located between the top part and bottom part of the filter. Rotating the connection flange allows the direction in which a gas flows through the filter element located in the filter housing to be reversed. In this way, the filter can be operated as a coalescence filter or as a dust filter by simply rotating the connection flange.