Patent ID: 8573885

Claim:
A planar attachment for a transporter and coupled thereto by a mounting plate, the planar attachment comprising: a grinding element configured to modify a surface of existing pavement, an enclosure generally enclosing the grinding element except on a downward facing side confronting the pavement surface, a source of power coupled to the transporter to power the grinding element; a rear frame assembly coupled to a rear surface of the grinding element enclosure; a rear wheel assembly supported by the rear frame assembly; a boom coupled to a front surface of the grinding element enclosure; a front wheel assembly coupled to an end of the boom; and a coupling mechanism coupled between the rear frame assembly and said mounting plate, the coupling mechanism configured to permit pivot and rotation of said planar attachment relative to said transporter; where the coupling mechanism comprises a first attachment member and a second attachment member rotatably coupled to one another, one of the first attachment member and the second attachment member is configured to attach to the mounting plate, the other of the first attachment member and the second attachment member is coupled to the rear frame assembly, and the attachment between one of the first attachment member or the second attachment member and the respective one of the mounting plate or the rear frame assembly is a pivotal attachment.