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:
Sep. 16, 1997
Filed:
Sep. 05, 1996
Applicant:
Inventors:
Richard Soula, Vertou, FR;
Didier Marchand, Saint-Germain-en-Laye, FR;
Henri Diot, Saint-Ouen-L'Aumone, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
219 75 ; 2191 / ;
Abstract
The arc welding, with a refractory electrode, using alternating current, is performed with a gaseous protective mixture including at the location of the weld, at least 50%, typically between 60 and 80% of helium and at least 300 vpm, typically between 400 and 800 vpm, of nitrogen, the remainder being argon. Application to manual or automatic welding of aluminium components.