Apparatus and method for heating and cutting an electrically-conductive workpiece
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1. A METHOD OF HEATING A METAL WORKPIECE, WHICH COMPRISES PROVIDING AN ELECTRICAL PLASMA-JET TORCH HAVING A BACK ELECTRODE AND A NOZZLE ELECTRODE, EFFECTING FLOW OF GAS THROUGH SAID TORCH AND OUT THE NOZZLE OPENING IN SAID NOZZLE ELECTRODE TO THE VICINITY OF A METAL WORKPIECE, MAINTAINING A FIRST HIGH-CURRENT ELECTRIC ARC THROUGH SAID GAS BETWEEN SAID BACK ELECTRODE AND SAID WORKPIECE, AND CONCURRENTLY MAINTAINING A SECOND HIGH-CURRENT ELECTRIC
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1 Claim
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1. A METHOD OF HEATING A METAL WORKPIECE, WHICH COMPRISES PROVIDING AN ELECTRICAL PLASMA-JET TORCH HAVING A BACK ELECTRODE AND A NOZZLE ELECTRODE, EFFECTING FLOW OF GAS THROUGH SAID TORCH AND OUT THE NOZZLE OPENING IN SAID NOZZLE ELECTRODE TO THE VICINITY OF A METAL WORKPIECE, MAINTAINING A FIRST HIGH-CURRENT ELECTRIC ARC THROUGH SAID GAS BETWEEN SAID BACK ELECTRODE AND SAID WORKPIECE, AND CONCURRENTLY MAINTAINING A SECOND HIGH-CURRENT ELECTRIC
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Current AssigneeAdriano C. Ducati
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Original AssigneeAdriano C. Ducati
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InventorsDucati, Adriano C.
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Application NumberUS04/129,217Time in Patent Office1,159 DaysField of SearchUS Class Current219/121.44CPC Class CodesB23K 10/00 Welding or cutting by means...C22B 4/00 Electrothermal treatment of...H05H 1/32 using an arc H05H1/28 takes...
