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:
Apr. 24, 2007
Filed:
Mar. 29, 2004
Applicants:
Yutaka Kimura, Tokyo, JP;
Yuuji Igarashi, Tokyo, JP;
Inventors:
Yutaka Kimura, Tokyo, JP;
Yuuji Igarashi, Tokyo, JP;
Assignee:
Taiyo Nippon Sanso Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 9/167 (2006.01);
U.S. Cl.
CPC ...
Abstract
A welding shield gas comprising an inert gas and nitrogen gas, where the concentration of the nitrogen gas is 1 to 95 vol %; or comprising an inert gas and a helium gas, where the concentration of the helium gas is 35 to 95 vol %; or comprising an inert gas, nitrogen gas, and a helium gas, wherein the concentration of the nitrogen gas is not less than 1 vol % and less than 65 vol % and the concentration of the helium gas is 35 to 95 vol %. This shield gas can be used in the non-consumable electrode arc welding of a welded material consisting of stainless steel.