Patent ID: 8469457

Claim:
Pavement cutting equipment for cutting a concrete or asphalt pavement, comprising: a first pavement cutting apparatus; the first pavement cutting apparatus comprising: a first cutter-mounting frame having one or more cutter assemblies mounted thereon for making a cut in a pavement; the first cutter-mounting frame, relative to a cutting direction of travel for the first pavement cutting apparatus when the first pavement cutting apparatus is cutting a pavement, having a leading end and a trailing end; a first coupling for pivotally connecting the leading end of the first cutter-mounting frame to a towing vehicle for towing the first pavement cutting apparatus so that the first cutter-mounting frame pivots about a vertical or substantially vertical pivot-axis passing through the first coupling; and each of the one or more cutter assemblies having a driven rotary saw blade; the rotary saw blade of each of the one or more cutter assemblies being a disc with peripheral cutting teeth; and the disc of the rotary saw blade of each of the one or more cutter assemblies being located in a common vertical or substantially vertical plane that also contains the vertical or substantially vertical pivot-axis of the first coupling whereby when the first pavement cutting apparatus is being towed in the cutting direction of travel for the first pavement cutting apparatus to form a generally vertically extending cut in a pavement, the rotary saw blade of each of the one or more cutter assemblies follows the vertical or substantially vertical pivot-axis of the first coupling, the rotary saw blade of each of the one or more cutter assemblies is aligned with and contained in a common plane with the vertical or substantially vertical pivot-axis of the first coupling, and, where there are a plurality of the cutter assemblies mounted on the first cutter-mounting frame, the rotary saw blade of each of the cutter assemblies is aligned with and in the same plane as the rotary saw blade of each of the one or more other cutter assemblies.