Patent ID: 8714871

Claim:
A method of repairing an asphalt void in a road surface, comprising: heating asphalt positioned proximate to the asphalt void; tilling the heated asphalt with a tiller to break up the heated asphalt into smaller aggregate pieces; and forming a beveled edge on opposing sides of the tilled asphalt in the asphalt road surface using the tiller; wherein said tiller comprises: a rotatable shaft member having a first end and a second end, a plurality of tines extending outwardly from the shaft member, and wherein the plurality of tines include a first outermost set of tines, a second outermost set of tines, and at least one set of inner tines located on the rotatable shaft member between the first outermost set of tines and the second outermost set of tines; wherein each of the first outermost set of tines extends radially outward from the rotatable shaft member and a cutting edge that angles inwardly towards the at least one set of inner tines, wherein each of the second outermost set of tines extends radially outward from the rotatable shaft member and a cutting edge that angles inwardly towards the at least one set of inner tines.