Road construction machine, as well as method for controlling the distance of a road construction machine moved on a ground surface
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United States of America Patent
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Mar 18, 2014
Grant Date -
Dec 8, 2011
app pub date -
May 17, 2011
filing date -
Jun 2, 2010
priority date (Note) -
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Abstract
A road construction machine comprising height adjustment devices which adjust the position of the plane of the machine frame in accordance with control signals, where the leveling device measures the distance of the ground surface to the machine frame and controls the height adjustment devices so the machine frame is movable at an adjusted orthogonal distance to the surface; a transmitter is arranged at the machine frame in a rigid fashion, and a receiver is movable, parallel to and synchronously with the machine frame, or vice versa, where the transmitter emits a measuring beam representative of a reference plane, the measuring beam being detectable by the receiver and representing either a plane extending parallel to the machine frame or a plane extending parallel to the ground surface, where the current distance of the machine frame to the current reference location is measurable from the detected position of the reference plane.
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