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Class Information
Number: 172/2
Name: Earth working > Automatic power control
Description: Apparatus comprising an earth working element and a means for sensing a condition or change of condition, which condition or change of condition may or may not occur, a separate control means and a separate power means for changing a condition of operation of the apparatus, said three means being so related that the sensing means controls operation of the controlling means and the control means controls operation of the power means, all without the intervention of a human operator.

Sub-classes under this class:

Class Number Class Name Patents
172/4 Constant depth type 114
172/7 Draft responsive 176
172/4.5 Land leveller type 282
172/3 Motive power control 85
172/5 Obstruction sensing type (includes plant sensing) 47

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8706363 System and method for adjusting a boundary for a machine Apr. 22, 2014
8688333 System and method for determining ground engaging tool position based on fluid pressure Apr. 1, 2014
8668024 Agricultural implement skew detection and correction Mar. 11, 2014
8596373 Method and apparatus for retrofitting work vehicle with blade position sensing and control system Dec. 3, 2013
8550020 Variable pressure control system for dual acting actuators Oct. 8, 2013
8515626 System and method for machine guidance control Aug. 20, 2013
8463512 Construction machine Jun. 11, 2013
8453754 Agricultural implement skew detection and correction Jun. 4, 2013
8418776 Implement control systems Apr. 16, 2013
8414010 System and method for drawbar support Apr. 9, 2013
8413738 Agricultural implement with accumulator suspension Apr. 9, 2013
8408149 Ground working machine with a blockage clearing system and method of operation Apr. 2, 2013
8406963 Implement control system for a machine Mar. 26, 2013
8374755 Machine with task-dependent control Feb. 12, 2013
8359141 Calibrated farming system Jan. 22, 2013
8346442 System and method for determining ground engaging tool position based on fluid pressure Jan. 1, 2013
8296019 Autoload system for excavation based on productivity Oct. 23, 2012
8272467 Remotely controlled backhoe Sep. 25, 2012
8209096 Device for measuring a load at the end of a rope wrapped over a rod Jun. 26, 2012
8201637 On-the-fly, remote tillage implement height adjustment apparatus and method for using same Jun. 19, 2012
8195366 Control system for a pallet truck Jun. 5, 2012
8162070 Hydraulic shock dissipation for implement bounce Apr. 24, 2012
7997350 Motor grader and clutch-control method for motor grader Aug. 16, 2011
7918285 Implement with active wing down force and wing lift sequencing Apr. 5, 2011
7857070 Control system using a single proportional valve Dec. 28, 2010
7778757 Method and a device for controlling movements of a work vehicle Aug. 17, 2010
7774117 Engine output control via auto selection of engine output curve Aug. 10, 2010
7753132 Preparation for machine repositioning in an excavating operation Jul. 13, 2010
7756622 Method and device for damping the displacement of construction machines Jul. 13, 2010
7734397 Method and system for tracking the positioning and limiting the movement of mobile machinery and its appendages Jun. 8, 2010
7734398 System for automated excavation contour control Jun. 8, 2010
7725234 System for controlling implement position May. 25, 2010
7686095 Implement height control system Mar. 30, 2010
7654359 Tractor control means Feb. 2, 2010
7654335 System and method for controlling an implement based upon a gear shift Feb. 2, 2010
7578079 Method for an autonomous loading shovel Aug. 25, 2009
7574821 Autonomous loading shovel system Aug. 18, 2009
7571775 Construction machine Aug. 11, 2009
7530185 Electronic parallel lift and return to carry on a backhoe loader May. 12, 2009
7513070 Work support and management system for working machine Apr. 7, 2009
7490678 GPS controlled guidance system for farm tractor/implement combination Feb. 17, 2009
7431101 Load sensing hydraulic system Oct. 7, 2008
7400957 Process and steering system for the automatic steering of an agricultural vehicle Jul. 15, 2008
7395870 Construction machine with fuel use indication Jul. 8, 2008
7343230 Method of operating an automated land maintenance vehicle Mar. 11, 2008
7293376 Grading control system Nov. 13, 2007
7277784 Combination of a self-moving harvesting machine and a transport vehicle Oct. 2, 2007
7264063 Sod harvester with controlled sod cut-off and conveying system Sep. 4, 2007
7263422 Method and system for controlling a mobile machine Aug. 28, 2007
7216033 Path planner and method for planning a contour path of a vehicle May. 8, 2007

1 2 3 4 5

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