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. 22, 2013
Filed:
Aug. 03, 2009
Frank Opferkuch, Unterensingen, DE;
Daniel Borst, Wolfschlugen, DE;
Martin Ploppa, Pfullingen, DE;
Werner Zobel, Böblingen, DE;
Jens Nies, Holzgerlingen, DE;
Andreas Stolz, Waldorfhäslach, DE;
Dieter Merz, Dotternhousen, DE;
Siegfried Eisele, Schönaich, DE;
Frank Opferkuch, Unterensingen, DE;
Daniel Borst, Wolfschlugen, DE;
Martin Ploppa, Pfullingen, DE;
Werner Zobel, Böblingen, DE;
Jens Nies, Holzgerlingen, DE;
Andreas Stolz, Waldorfhäslach, DE;
Dieter Merz, Dotternhousen, DE;
Siegfried Eisele, Schönaich, DE;
Modine Manufacturing Company, Racine, WI (US);
Abstract
A system and method for producing flat tubes is described and illustrated. The flat tubes can be produced from at least one strip of endless band material having at least one wall part and an inner part formed with corrugations on a roller train provided with roller pairs, with the strip running in a longitudinal direction through the rollers and being shaped. The inner part of the flat tube can be formed with corrugations placed between the shaped wall parts, after which the closure of the flat tube is carried out. Production of the flat tubes can include forming spaced apart band thinning lines running in the longitudinal direction of the strip, and forming corrugation peaks and corrugation troughs at the band thinning lines.