Patent ID: 7806626

Claim:
An apparatus for marking peaks and troughs on a pavement surface for inducing vibrations in a plurality of vehicles passing over said pavement surface, comprising: an electric motor supported on a first guide bar attached to an enclosure, wherein said enclosure is attached to a trailer; a plurality of holding brackets attached to said electric motor, wherein each of said holding brackets comprise a plurality of rollers for keeping the electric motor on track of said first guide bar, and wherein each of the holding brackets further comprise a plurality bearings for providing gliding support to the electric motor; a metal block housing supported on a second guide bar attached parallel to the first guide bar, wherein said metal block comprises: a plurality of injection systems for marking said peaks and said troughs on the pavement surface in a predefined pattern, wherein each of said injection systems comprise a protective enclosure, and wherein the injection systems are positioned at a plurality of openings provided on the metal block housing; a plurality of gears comprising a rack and a pinion, wherein said rack is attached to said trailer parallel to the first and said second guide bars, and wherein said pinion is connected to a shaft of the electric motor for allowing the electric motor to control movement of the metal block housing with respect to said second guide bar; a flat sheet attached to said enclosure for providing a flattened finish to a paving material laid on the pavement surface.