US Patent Issued to SUMITOMO METAL MINING on March 11 for "Froth bubble moving speed measuring device and method of measuring froth bubble moving speed, flotation apparatus and flotation method using same" (Japanese Inventor)

ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,997, issued on March 11, was assigned to SUMITOMO METAL MINING Co. LTD. (Tokyo).

"Froth bubble moving speed measuring device and method of measuring froth bubble moving speed, flotation apparatus and flotation method using same" was invented by Jun Sugihara (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A froth bubble moving speed measuring device includes a light source configured to illuminate an upper surface of a flotation tank, an imaging unit configured to capture at least a part of the upper surface of the flotation tank, and an arithmetic processing unit configured to calculate a moving speed of a froth bubble by calculating a moving...