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:
Oct. 08, 2013
Filed:
Mar. 19, 2010
Andreas Beutler, Weissenhorn, DE;
Jean El Hajal, Ulm, DE;
Achim Gotterbarm, Dornstadt, DE;
Ronald Lutz, Blaubeuren, DE;
Andreas Beutler, Weissenhorn, DE;
Jean El Hajal, Ulm, DE;
Achim Gotterbarm, Dornstadt, DE;
Ronald Lutz, Blaubeuren, DE;
Wieland-Werke AG, Ulm, DE;
Abstract
A metallic heat exchanger tube () with a tube wall () and with integrally formed ribs () which run around on the tube outside () and which have a rib foot (), rib flanks () and a rib tip (), the rib foot () projecting essentially radially from the tube wall (), and the rib flanks () being provided with additional structural elements which are formed as material projections () arranged laterally on the rib flank (), the material projections () having a plurality of boundary faces (), at least one of the boundary faces () of at least one material projection () being curved convexly.