ALEXANDRIA, Va., June 25 -- United States Patent no. 12,336,450, issued on June 24, was assigned to Vaderstad Holding AB (Vaderstad, Sweden).
"Furrow opener, row unit, agricultural implement and method of operating a furrow opener" was invented by Morgan Collin (Mjolby, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "The document discloses a seed furrow opener (21), comprising a furrow opener arm (210), and a pair of cooperating seed discs (216a, 216b), whose rotational axes (Ra, Rb) are non-parallel to each other. At least one of the seed discs (216a, 216b) is axially slidably mounted on a shaft (212a, 212b), whose proximal end is attached to the seed furrow opener arm (210). A spring (213a, 213b) is ...