US Patent Issued to Sandvik Mining and Construction on July 1 for "Percussion device and method for controlling the same" (Finnish Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,020, issued on July 1, was assigned to Sandvik Mining and Construction Oy (Tampere, Finland).

"Percussion device and method for controlling the same" was invented by Mika Oksman (Lahti, Finland), Jyrki Nissinen (Lahti, Finland), Juhani Laine (Lahti, Finland) and Ossi Grohn (Lahti, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic percussion device and method of controlling a working cycle of a percussion piston is provided. A rock breaking machine includes a percussion device provided with a reciprocating piston executing a working cycle. The operation is controlled by means of a control unit generating control signals for independen...