Gas-shielded metal-arc welding
First Claim
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1. A SHIELDING GAS FOR DIRECT CURRENT REVERSE POLARITY SIGMA WELDING CARBON STEEL, COMPOSED OF A MIXTURE CONTAINING 3-10% CARBON DIOXIDE, 40-80% HELIUM, AND 10-57% ARGON.
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1 Claim
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1. A SHIELDING GAS FOR DIRECT CURRENT REVERSE POLARITY SIGMA WELDING CARBON STEEL, COMPOSED OF A MIXTURE CONTAINING 3-10% CARBON DIOXIDE, 40-80% HELIUM, AND 10-57% ARGON.
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Current AssigneeDonald M. Yenni, Kenneth L. Thomas
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Original AssigneeDonald M. Yenni, Kenneth L. Thomas
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InventorsYenni, Donald M., Thomas, Kenneth L.
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Application NumberUS03/402,406Time in Patent Office910 DaysField of SearchUS Class Current219/74CPC Class CodesB23K 35/383 mainly containing noble gas...B23K 9/16 making use of shielding gas...
