ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,743, issued on Dec. 16, was assigned to Douglas Dynamics LLC (Milwaukee).
"Convertible snow plow" was invented by Gatesy R.C.D. Gates (Liberty, Maine) and Andre Valmont Leblond (Rockport, Maine).
According to the abstract* released by the U.S. Patent & Trademark Office: "A convertible snow plow comprises a support frame having a forward end and a rearward end, the rearward end adapted to be mounted to a vehicle, a pair of plow blades hinged together along inboard ends of the blades at a hinge at the forward end of the support frame, an actuator having opposite ends, one end connected to the support frame, and a two-position linkage connected to the other end of the actuator and t...