ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,121, issued on Sept. 16, was assigned to VOLVO CONSTRUCTION EQUIPMENT AB (Eskilstuna, Sweden).

"Tamper device for a screed of a working machine and a method for adjusting a stroke of a tamper device for a screed of a working machine" was invented by Anton Mahler (Wennigsen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a tamper device for a screed of a working machine, in particular a paver. The device comprises a rotatable driveable tamper shaft with an eccentric section, an 5 eccentric bushing mounted on the eccentric section, and a connecting rod rotatable mounted on the eccentric bushing for being driveable wit...