Method of mounting filter elements and mounting therefor

US4193844A · kind A · utility

Assignee

• Delbag-Luftfilter GmbH

Inventors

• Gerhard Neumann · Waldkraiburg, DE
• Jochen Karelin · Berlin, DE

Key dates

• Filing date: Sep 20, 1976
• Grant date: Mar 18, 1980
• Expiry date: Sep 20, 1996

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S55/09
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for the insertion and exchange of the filter elements for suspended matter is performed from the clean-air-side. During the insertion of a filter element, a plastic tube (which encircles the circumference of the filter element and which exceeds in its length the layer thickness of the filter element several times) is tightly connected in its middle section with the side walls, which side walls form a border around the filter element; and then the open end of the plastic tube, which faces the frame, is connected by way of a tight fit with a ring, which is actually known and which surrounds the orifice of the frame into which the filter element is inserted. The filter element is connected with the frame by means of tightening devices, and the outer free end of the tube is turned inside out and around the filter element for the purpose of unhindered air passage through the filter layer, that during the exchange of the contaminated filter element, the outer open end of the tube is heat sealed. The filter element is disconnected and removed from the frame by flipping down of the tightening devices, and the tube is heat sealed in the section between the filter element and the f…