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. 14, 2014
Filed:
Feb. 05, 2007
Andreas Beutler, Weissenhorn, DE;
Jean El Hajal, Ulm, DE;
Markus Revermann, Wietmarschen, DE;
Andreas Schwitalla, Illerrieden, DE;
Andreas Beutler, Weissenhorn, DE;
Jean El Hajal, Ulm, DE;
Markus Revermann, Wietmarschen, DE;
Andreas Schwitalla, Illerrieden, DE;
Wieland-Werke AG, Ulm, DE;
Abstract
The invention relates to a heat exchanger tube with at least one structured region on the inside of the tube, which has the following features: A further aspect of the invention relates to a method for producing heat exchanger tubes of this type, with integral external ribs running around the outside of the tube in a helical-line-shaped manner and running on the inside of the tube in an axially parallel or helical-line-shaped manner, and internal ribs which are crossed and notched by secondary grooves and by tertiary grooves.