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:
May. 15, 2001
Filed:
Dec. 10, 1999
Valeo Thermique Moteur, La Verriere, FR;
Abstract
A folded tube for a motor vehicle heat exchanger, is made from a metal strip folded on itself so as to form two parallel channels separated by a spacer. The spacer results from the joining of two borders of the strip each being folded at right angles towards the inside of the tube from an outer face. Each of the borders is folded at right angles with respect to the outer face, forming a folded outer edge, and includes a protruding swelling which extends at least on the same side as the outer face of the strip. The invention makes it possible to produce a tube having flat large faces, the continuity of which is assured in the regions close to the spacer and which contributes to better holding of corrugated spacers in the heat exchanger.