Abstract: An apparatus for measuring attributes such as color, thickness and/or retro reflectivity of a road marking disposed on a road surface. The apparatus includes a vehicle that travels over the road surface. The vehicle transports a measurement system and a computer. The measurement system includes at least one subsystem, which may include a color measurement subsystem, a thickness measurement subsystem and/or a retro-reflectivity measurement subsystem. The computer receives the measurement information from the measurement system.
Type:
Application
Filed:
February 14, 2003
Publication date:
August 19, 2004
Applicant:
Lafarge Road Marking, Inc.
Inventors:
Aleksandar Zivkovic, Ilya Voronov, David P. Villani
Abstract: The present invention provides an apparatus for applying thermoplastic marking material to a pavement surface. The apparatus includes a hopper for holding a supply of particulate thermoplastic marking material in a non-molten state, a means for conveying the thermoplastic marking material from the hopper to a continuous melt processor, and a conduit from the continuous melt processor to a dispenser that directs molten thermoplastic marking material to the pavement surface. The apparatus further includes means for heating the continuous melt processor and conduit to a temperature that is higher than the melt temperature of the thermoplastic marking material. The present invention also provides a method of applying a thermoplastic marking material to a pavement surface.