Apparatus for the application of a liquid or pasty medium to a moving fiber web

US6579368B1 · kind B1 · utility

Assignee

• Voith Sulzer Papiertechnik Patent GmbH · DE

Inventors

• Bernhard Kohl · Heidenheim, DE
• Stefan Reich · Heidenheim, DE
• Benjamin Mendez-Gallon · Oberkochen, DE
• Martin Kustermann · Heidenheim, DE
• Manfred Ueberschar · Seligenstadt, DE
• Christioph Henninger · Heidenheim, DE
• Rudiger Kurtz · Heidenheim, DE
• Martin Tietz · Heidenheim, DE

Key dates

• Filing date: Jul 21, 2000
• Grant date: Jun 17, 2003
• Expiry date: Nov 22, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05C11/04
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

An application apparatus is for applying a liquid or pasty medium to a moving base. The moving base is a surface of a material web in a case of direct application and a surface of a transfer element for transferring the medium to the material web in a case of indirect application, the material web being one of paper and cardboard. The application apparatus has an inlet side and an outlet side with respect to a direction of movement of the moving base. The application apparatus includes a carrying beam; an essentially rigid supporting unit provided on the carrying beam; a sealing doctor device positioned at the inlet side of the application apparatus, the sealing doctor device being fixedly attached to the supporting unit; and a metering doctor device positioned at the outlet side of the application apparatus, the metering doctor device being fixedly attached to the supporting unit. The sealing doctor device and the metering doctor device define an application chamber therebetween.