ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,464,984, issued on Nov. 11, was assigned to F & T Spagnolo Pty Ltd. (Mildura, Australia).
"Pruning machine" was invented by Fred Spagnolo (Mildura, Australia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pruning machine (12) for pruning vegetation growing on generally horizontal support wires. The pruning machine (12) includes a vertical shaft (22) mounted for rotation and at least one blade assembly (26) mounted on the shaft (22). The blade assembly (26) includes a plurality of blades (30) mounted to rotate with the shaft (22). The shaft (22) is threaded at least in the region where the blade assembly (26) is mounted. The vertical position of the bl...