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:
Sep. 28, 2010
Filed:
Jun. 28, 2007
Rainer Kloibhofer, Neumarkt, AT;
Christoph Haase, Asperhofen, AT;
Thomas Gruber-nadlinger, Langenrohr, AT;
Herbert Boden, Pölten, AT;
Erich Rollenitz, Pölten, AT;
Manfred Gloser, Pölten, AT;
Rainer Kloibhofer, Neumarkt, AT;
Christoph Haase, Asperhofen, AT;
Thomas Gruber-Nadlinger, Langenrohr, AT;
Herbert Boden, Pölten, AT;
Erich Rollenitz, Pölten, AT;
Manfred Gloser, Pölten, AT;
Voith Patent GmbH, Heidenheim, DE;
Abstract
The invention relates to a drying cylinder which is used to dry a paper, cardboard, tissue or other web of fibrous material in a machine for the production and/or for the transformation thereof. The drying cylinder includes a support body and an external cover layer which is heated by a hot fluid. The thermal flow passing through the external cover layer is increased such that at least one cavity is provided between the support body and the external cover layer through which the fluid flows. The external cover layer is predominately so thin that the ratio formed by the thermal conductivity of the material and the thickness of the external cover layer is greater than a threshold value of 3.2 kW/mK for steel, 30 kW/mK for aluminum, 18 kW/mK for bronze alloys, 3.4 kW/mK for copper and 6.1 kW/mK for magnesium.