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:
Mar. 21, 1989
Filed:
Mar. 28, 1983
Applicant:
Inventor:
Jacques Pilliez, Laval, FR;
Assignee:
Societe Anonyme des Usines Chausson, Hauts de Seine, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
2915 / ; 29515 ;
Abstract
For reinforcing the connection between the tubes of a heat exchanger and the tube end plate in which they are engaged, the tube end plate is formed by punching for delimiting collars having a bevelled end and forming bulged bottoms between the collars, then a small plane plate is applied on the bulged bottoms, the small plane plate being brazed in the same time as the tubes and the tube end plate.