ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,382,864, issued on Aug. 12, was assigned to ARDISAM INC. (Cumberland, Wis.).
"Heads for string trimmers and mowers" was invented by Robert John Ruppel (Cumberland, Wis.), Scott Andrew Waldal (Hudson, Wis.) and Matthew Michael Oestreich (Cumberland, Wis.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cutting head body for an agricultural machine, such as a mower or a trimmer, is configured to receive a cutting line for cutting weeds, grass, or other materials. The cutting head body includes an inlet area having a cavity with a node location configured to receive a node of a cutting line, and an outlet area having a cavity configured to open to an exter...