초록 ▼

A system for applying a liquid material to a roadway surface from a wheeled, motor-driven vehicle, the system comprising a tank for carrying a liquid material, a first spray bar for discharging the liquid material on to the roadway surface and a second spray bar for discharging the liquid material o

A system for applying a liquid material to a roadway surface from a wheeled, motor-driven vehicle, the system comprising a tank for carrying a liquid material, a first spray bar for discharging the liquid material on to the roadway surface and a second spray bar for discharging the liquid material onto the roadway surface which was not covered by the discharge of the first spray bar. The system includes hydraulic motors and pumps for the first spray bar as well as hydraulic motors and pumps for the second spray bar, the second spray bar being independently controllable to apply liquid asphalt or other suitable material to the roadway at different rates than that liquid asphalt being applied by the first spray bar.

대표청구항 ▼

[ What is claimed is:] [4.] On a liquid asphalt distribution truck having a tank carrying liquid asphalt and having a first spray bar with a first multiplicity of nozzles thereon for directing liquid asphalt onto a roadway surface, an asphalt distribution system comprising:a second spray bar mounted

[ What is claimed is:] [4.] On a liquid asphalt distribution truck having a tank carrying liquid asphalt and having a first spray bar with a first multiplicity of nozzles thereon for directing liquid asphalt onto a roadway surface, an asphalt distribution system comprising:a second spray bar mounted behind the truck and generally parallel to the first spray bar, the second spray bar with a multiplicity of second spray bar nozzles for directing liquid asphalt onto the roadway surface;a liquid asphalt pump independent of the first spray bar in fluid communication between the tank and the second spray bar for pumping liquid asphalt out of the tank through the second spray bar and onto the roadway surface;a hydraulic motor to drive the liquid asphalt pump; anda control panel for independently controlling the rate of application of the liquid asphalt from the second spray bar to the roadway surface.