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:
Jan. 28, 2025
Filed:
Nov. 25, 2020
Estra Automotive Systems Luxembourg S.à.r.l., Hautcharage, LU;
Thierry Berger, Thionville, FR;
Vincent Nautet, Luxembourg, LU;
Richard Cipriano, Doncourt-lès-Conflans, FR;
Hervé Damotte, Longwy, FR;
Chris Calhoun, Bertrange, LU;
ESTRA AUTOMOTIVE SYSTEMS LUXEMBOURG S.A.R.L., Hautcharage, LU;
Abstract
A flat heat exchanger tube is formed from a single metal strip and comprising two opposite spaced apart broad sides in a thickness direction of said tube and two opposite nose-forming narrow sides in a width direction of said tube. The strip has two longitudinal edges, the first longitudinal edge being contiguous to the first broad side and the second longitudinal edge being contiguous to the second broad side. The two longitudinal edges of the strip are joined together at a first one of the narrow sides, both longitudinal edges being convex-shaped so that the first edge forms an outer convex bend and the second edge forms an inner convex bend that fits in the outer convex bend and conforms to its internal curvature.