Douglas Dynamics LLC

Craig D MacIntosh

Andre Valmont Leblond

Gatesy R C D Gates

A snow plow assembly comprises an angle frame adapted to be operably mounted to a vehicle, a quadrant frame, a plow blade mounted to the quadrant frame, a drive link pivotally connected to the angle frame and the quadrant frame at first and second pivot points, respectively, a swing link pivotally connected to the angle frame and the quadrant frame at third and fourth pivot points, respectively, the angle frame, quadrant frame, drive link, and swing link, and the first, second, third, and fourth pivot points defining a four-bar linkage, and a first actuator pivotally connected on one end to the angle frame at a fifth pivot point and pivotally connected on the other end to the drive link at a sixth pivot point, wherein extending the first actuator causes the quadrant frame and hence the plow blade to rotate in a first direction from a neutral position generally perpendicular to a longitudinal axis of the vehicle, and retracting the first actuator causes the quadrant frame and hence the plow blade to rotate in a second opposite direction from the neutral position.

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Thomaston, ME, United States of America

Craig D MacIntosh