Aluminum alloy
First Claim
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1. AN ALUMINUM BASE ALLOY CHARACTERIZED BY A HIGH CREEP STRENGTH AND HIGH ELECTRICAL CONDUCTIVITY, SAID ALLOY CONTAINING 0.2 TO 1.1 PER CENT IRON, 0.2 TO 0.5 PER CENT MAGNESIUM, FROM 0.05 TO 0.15 PER CENT SILICON, BALANCE ALUMINUM EXCEPT FOR THE SMALL AMOUNTS OF IMPURITIES OTHER THAN IRON AND SILICON ORDINARILY PRESENT IN GRADES OF ALUMINUM HAVING AN ELECTRICAL CONDUCTIVITY OF AT LEAST 60 PER CENT THE CONDUCTIVITY OF PURE COPPER THE MAGNESIUM CONTENT OF THE ALLOY BEING SLIGHTLY IN EXCESS OF THAT CALCULATED AS NECESSARY TO CONVERT ALL OF THE SILICON TO MG2SI.
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1 Claim
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1. AN ALUMINUM BASE ALLOY CHARACTERIZED BY A HIGH CREEP STRENGTH AND HIGH ELECTRICAL CONDUCTIVITY, SAID ALLOY CONTAINING 0.2 TO 1.1 PER CENT IRON, 0.2 TO 0.5 PER CENT MAGNESIUM, FROM 0.05 TO 0.15 PER CENT SILICON, BALANCE ALUMINUM EXCEPT FOR THE SMALL AMOUNTS OF IMPURITIES OTHER THAN IRON AND SILICON ORDINARILY PRESENT IN GRADES OF ALUMINUM HAVING AN ELECTRICAL CONDUCTIVITY OF AT LEAST 60 PER CENT THE CONDUCTIVITY OF PURE COPPER THE MAGNESIUM CONTENT OF THE ALLOY BEING SLIGHTLY IN EXCESS OF THAT CALCULATED AS NECESSARY TO CONVERT ALL OF THE SILICON TO MG2SI.
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Current AssigneeRichards H. Harrington
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Original AssigneeRichards H. Harrington
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InventorsHarrington, Richards H.
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Application NumberUS03/018,481Time in Patent Office1,300 DaysField of SearchUS Class Current310/179CPC Class CodesC22C 21/08 with silicon
