ALEXANDRIA, Va., July 28 -- United States Patent no. 12,691,535, issued on July 28.

"Automatic cleaning device for a pattern jig after laser notching" was invented by Kye-Seol Lee (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "An automatic cleaning device of a pattern jig after laser notching includes: a rotary rod coupled to the center of a pattern jig to rotate the pattern jig; a pair of brushes rotatably installed on a side of a brush unit; brush rotation motors for rotating the brushes; left and right brush carriers for carrying the brushes left and right; a vertical brush unit carrier installed at the brush unit to be movable up and down; a forward and backward brush unit carrier cou...