US Patent Issued to MAQ on Oct. 14 for "Mass damper device, working tool and working tool holder comprising a mass damper device" (Swedish Inventor)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,428, issued on Oct. 14, was assigned to MAQ AB (Saltsjo-Boo, Sweden).

"Mass damper device, working tool and working tool holder comprising a mass damper device" was invented by Qilin Fu (Solna, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mass damper device includes a tubular housing having a first and a second longitudinal end; at least one damping mass which is received in the tubular housing with a circumferential clearance; a first resilient element and a second resilient element. At least one end closure is arranged at the first or second longitudinal end. The housing and the end closure have cooperating mounting surfaces which defin...