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. 29, 1994
Filed:
Dec. 04, 1992
Applicant:
Inventor:
Robert W Goff, Abingdon, GB;
Assignee:
Bundy International Limited, Abingdon, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21C / ;
U.S. Cl.
CPC ...
72 47 ; 72368 ; 138143 ;
Abstract
The invention relates to a method of manufacturing a tube, comprising the application respectively to one side of a metal strip 1 a first layer 2 of a first metal which is brazeable and to the other side of the metal strip 1 a second layer 3 of a second metal which is different from the first metal, and, after application of said layers 2,3, rolling of the strip 1 in order to form a tube having at least two walls.