Patent ID: 7437839

Claim:
In a V-blade plow with adjustable first and second plow blades, each having an inner end rotatably connected to a pivot frame to pivot about an axis, and having a bottom edge, a cutting edge arrangement comprising: a first edge segment removably attached to the first plow blade and projecting downward below the bottom edge of the first plow blade; a second edge segment removably attached to the second plow blade and projecting downward below the bottom edge of the second plow blade; and a center edge segment comprising a first wall and a second wall, wherein the first wall is attached to the first edge segment, pivots with the first plow blade about the axis, and extends from the first edge segment underneath the pivot frame, and wherein the second wall is attached to the second edge segment, pivots with the second plow blade about the axis, and extends from the second edge segment underneath the pivot frame, wherein first wall abuts the second wall along the axis.