Abstract: A pitch plow and method of laying flexible pipe in ground includes drawing a pitch plow with respect to the ground, the pitch plow having a frame and a shank pivotally mounted to a frame at a pivot, said shank defining a cutting edge. The shank is oriented relative to earth horizontal causing a change in the elevation of the cutting edge. Flexible pipe is fed through a boot extending generally along the shank. The flexible pipe is fed at an in-feed at an upper portion of the boot and discharged at a discharge at a lower portion thereof. The discharge is generally aligned with a vertical axis passing through the pivot in order to minimize vertical movement of the discharge as the shank pivots about the pivot.

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.

Abstract: A pitch plow and method of laying flexible pipe in ground includes drawing a pitch plow with respect to the ground, the pitch plow having a frame and a shank pivotally mounted to a frame at a pivot, said shank defining a cutting edge. The shank is oriented relative to earth horizontal causing a change in the elevation of the cutting edge. Flexible pipe is fed through a boot extending generally along the shank. The flexible pipe is fed at an in-feed at an upper portion of the boot and discharged at a discharge at a lower portion thereof. The discharge is generally aligned with a vertical axis passing through the pivot in order to minimize vertical movement of the discharge as the shank pivots about the pivot.

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.

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.

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.

Abstract: An adjustment means for a cultivator disc which provides lateral, vertical and angular adjustment means. A plurality of discs are mounted in parallel on a gang frame, and may be individually adjusted in the field to exact, predetermined positions established by a positive positioning means, and then firmly held in place by a clamping means. In the presently preferred embodiment, the individual support shafts of each cultivator disc are supported by the angle adjustment brackets, which are supported by the lateral adjustment brackets, which are slidably supported in predetermined fixed positions in lateral housings attached to the main towing bar of the cultivator assembly.