Solar Atmospheres, Inc. filed a patent application with the United States Patent Office, application number 15/999,873, for a high-pressure, rapid gas quenching vacuum furnace using an isolation transformer in the blower motor power system. The gas quench with a 600 HP motor operates at 460 volts in argon gas, using a double wound, Magnetic Specialties, Inc. electrical isolation transformer, primary winding 1:1 to the secondary winding, with a variable speed drive and solid-state electrical spike protection for motor arc suppression.
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