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:
Jul. 05, 2005
Filed:
Jan. 09, 2002
Andreas Beutler, Weissenhorn, DE;
Manfred Knab, Dornstadt, DE;
Andreas Knoepfler, Ulm, DE;
Axel Kriegsmann, Ulm, DE;
Klaus Menze, Ulm, DE;
Gerhard Schuez, Voehringen, DE;
Andreas Schwitalla, Illerieden, DE;
Andreas Beutler, Weissenhorn, DE;
Manfred Knab, Dornstadt, DE;
Andreas Knoepfler, Ulm, DE;
Axel Kriegsmann, Ulm, DE;
Klaus Menze, Ulm, DE;
Gerhard Schuez, Voehringen, DE;
Andreas Schwitalla, Illerieden, DE;
Wieland-Werke AG, Ulm, DE;
Abstract
A metallic heat transfer tube, in particular for the evaporation of liquids from pure substances or mixtures on the outside of the tube. Fins are integrally formed on the outside of the tube. Recesses are arranged in the area of the base of the primary grooves and extend between the fins. The recesses are in the form of re-entrant secondary grooves. The mechanical stability of the tube is not negatively influenced because material is primarily removed from the fin flanks toward the base of the groove so that the re-entrant secondary grooves are radially open.