ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,810, issued on Jan. 13, was assigned to ESAB AB (Gothenburg, Sweden).
"Overvoltage protection for current braking switch" was invented by Rolf Karlsson (Laxa, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes supplying a welding current to a welding zone, monitoring, during a welding current ramp down period of a given short arc welding process cycle, a voltage across a current braking switch that is in an open state and that causes a decrease in welding current being supplied to a welding zone; and when the voltage across the current braking switch that is in the open state reaches a first predetermined voltage threshold, clos...