Patents Assigned to Gradient Inc.
  • Patent number: 8090507
    Abstract: A pitch plow and a method of controlling an elevation of a cutting edge of a pitch plow having a frame and a shank that is pivotally mounted to the frame, with the shank defining a cutting edge includes a control system that controls an elevation of the cutting edge. The control system includes a hydraulic control between the shank and the frame to pivotally adjust the shank and an electronic control to control the hydraulic actuator. The electronic control includes a processor and first and second sensors. The processor produces an output that adjusts the hydraulic control in a manner that controls the elevation of the cutting edge. The first sensor may measure GNS location and provides a GNS location input to the processor. The second sensor may measure orientation of said shank and provides a shank orientation input to the processor.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: January 3, 2012
    Assignee: Gradient Inc.
    Inventors: James D. Yegerlehner, Dennis E. Bell
  • Publication number: 20090187315
    Abstract: A pitch plow and a method of controlling an elevation of a cutting edge of a pitch plow having a frame and a shank that is pivotally mounted to the frame, with the shank defining a cutting edge includes a control system that controls an elevation of the cutting edge. The control system includes a hydraulic control between the shank and the frame to pivotally adjust the shank and an electronic control to control the hydraulic actuator. The electronic control includes a processor and first and second sensors. The processor produces an output that adjusts the hydraulic control in a manner that controls the elevation of the cutting edge. The first sensor may measure GNS location and provides a GNS location input to the processor. The second sensor may measure orientation of said shank and provides a shank orientation input to the processor.
    Type: Application
    Filed: December 12, 2008
    Publication date: July 23, 2009
    Applicant: Gradient Inc.
    Inventors: James D Yegerlehner, Dennis E. Bell