The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2003
Filed:
May. 16, 2001
Dietrich Schüler, Essen, DE;
Ewald Georg Welp, Erkrath, DE;
Bruno Holtmann, Dielsdorf, CH;
Armin Hutzenlaub, Wiehl, DE;
Hans Rückert, Ratingen, DE;
Jagenberg Papiertechnik GmbH, Neuss, DE;
Abstract
The invention relates to a method and device for reducing the volume or pressure of a fluid which is driven through an opening ( ) by moving surfaces. According to said method, the opening ( ) is divided in at least two flow channels ( ) by means of one or more flexible separation members ( ). Each separation member ( ) is attached at its rear end relatively to the direction of displacement of said surfaces, and its front finishing end extends inside said opening ( ). The inventive method can be advantageously implemented during production and further transformation of strip-shaped materials (paper, cardboard strips, plastic material sheets) for bringing the strip which moves on an element (cylinder, roll, rigid guiding element, winding reel) into close contact with said element.