ALEXANDRIA, Va., April 15 -- United States Patent no. 12,599,970, issued on April 14, was assigned to MESSER SE & Co. KGAA (Bad Soden, Germany).
"Device and method for additive manufacturing under protective gas" was invented by Dirk Kampffmeyer (Linnich, Germany) and Bernd Hildebrandt (Tonisvorst, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a device for the additive manufacturing of workpieces under protective gas, which device is provided with a manufacturing chamber designed as a pressure chamber, said manufacturing chamber being fluidically connected to a pressure container via a gas extraction line, which is provided with a vacuum pump, and via a gas return line. Afte...