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. 17, 1987
Filed:
Nov. 28, 1984
Applicant:
Inventor:
Michel Allemandou, Charenton le Pont, FR;
Assignee:
Societe Anonyme des Usines Chausson, Asnieres Hauts de Seine, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28D / ; F28F / ; B21D / ; B21D / ;
U.S. Cl.
CPC ...
165148 ; 2915 / ; 29 3 / ; 29462 ; 29509 ; 165173 ; 403274 ; 403284 ;
Abstract
In a method for crimping a tube end plate of a heat exchanger on a header box, there is provided a peripheral upright edge for enclosing an extra thickness defined by the header box. Portion of the upright edge of the tube end plate which has to extend, when assembled, at least in part above a flange of the header box is stiffened. The stiffened portion of the upright edge of the tube end plate is folded at least partly back onto the flange of the header box.