US Patent 7208695 Welding shield gas and welding method
Patent 7208695 was granted and assigned to Taiyo Nippon Sanso Corporation on April, 2007 by the United States Patent and Trademark Office.
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Patent 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.
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US Patent 07208695 Welding shield gas and welding method US Patent 7208695 Welding shield gas and welding method
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Patent Number
0720869500
Patent Number
720869500
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Is a
Current Assignee
Patent Jurisdiction
Patent Number
072086950
Date of Patent
April 24, 2007
0Patent Application Number
108108470
Date Filed
March 29, 2004
0Official Website
Patent Primary Examiner
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
072086950
Date of Patent
April 24, 2007
0Patent Application Number
108108470
Date Filed
March 29, 2004
0Official Website
Patent Primary Examiner
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US Patent 07208695 Welding shield gas and welding method
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07208695
Date of patent
April 24, 2007
Patent application number
10810847
Date Filed
March 29, 2004
Patent primary examiner
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