Patent ID: 7841109

Claim:
A snow plow including an articulated wing blade, the snow plow comprising: a hitch frame nose assembly configured to couple to a vehicle, the hitch frame nose assembly including a chassis coupler secured at each end of a chassis tube with each chassis coupler including a traverse pin and configured to attach to the vehicle chassis; wherein the traverse pin includes a first portion and a second portion, with the first portion located within the chassis coupler and the second portion extending from one side of the chassis coupler; a plow frame having a front portion and a rear portion; a central plow blade coupled to the front portion of the plow frame, the central plow blade having a first end and a second end, with each blade end including a wing blade, wherein each wing blade is configured to selectively move independently of the central plow blade from a first position to a second position about a vertical axis parallel with each of the first and second ends of the central plow blade; a swing frame pivotally coupled to the front portion of the plow frame, the swing frame configured to coupled to the plow blade, wherein the plow blade is rotatable about a pivot pin proximate a center portion of the swing frame; a trip spring bracket coupled proximate each end of the swing frame, with each trip spring bracket configured to removably support a cushion block positioned between the trip spring bracket and the plow blade wherein the cushion block is substantially rectangular in shape and removably secured to the trip spring bracket with a pair of bolts, each trip spring bracket further configured to pivotally couple to the plow blade at a pivot positioned below the cushion block; and a lift bar assembly coupled to the rear portion of the plow frame, the lift bar assembly including a pair of fixed notched members with each fixed notched member aligned with a corresponding chassis coupler and configured to engage the traverse pin in each chassis coupler, wherein the snow plow is pivotally coupled to the vehicle.