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. 10, 2000
Filed:
Dec. 22, 1998
Applicant:
Inventors:
Yvon Dumetz, Chatillon, FR;
Carlos Martins, Montfort l'Amaury, FR;
Assignee:
Valeo Thermique Moteur, la Verriere, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
165177 ; 29890053 ;
Abstract
A folded and brazed tube consists of at least one metal band folded over itself to form two parallel channels separated by a cross-piece. The cross-piece is formed by at least one margin of the band, which is locally folded from the tube surface towards its interior. At least one sheet is pressed against the outside of the cross-piece and has an edge flush with the surface of the tube in order to delimit a volume formed in the folding region of the margin which must be filled in during brazing. Applications include the manufacture of vehicle engine cooling radiators.