Ultrasonic grade and auger control

Details Ultrasonic grade and auger control Ultrasonic grade and auger control

E - Fixed Constructions

01

C

341/98

E01C 19/00 (2006.01) G01S 15/88 (2006.01)

Patent

CA 1330117

Abstract of the Disclosure An ultrasonic grade and auger control for use on a road paving machine to compensate for uneven road surfaces is described. As the road paving machine travels, asphalt is centrally deposited along the road bed. An auger is connected to the back of the road paving machine and contains a series of spiral blades which moves the asphalt away from the center of the road bed toward its outer edges. The ultrasonic auger control apparatus detects the height of the asphalt positioned at the outer edges of the paving machine and regulates the speed of the auger to provide even distribution of the asphalt. A screed is located behind the auger to uniformly place and pack the paving material. The ultrasonic grade control apparatus regulates hydraulic actuators which control the thickness of the new road surface by adjusting the height of the screed.

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