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| Number | Title | Issue Date |
| 7370589 | Systems and methods for fluid dispensing Systems and methods are disclosed for dispensing fluids. The systems can include a sensor operable to detect when an object passes a first location as the object moves to a second location. The systems can also include a fluid dispenser operable to dispense fluid at... | 05/13/2008 |
| 7171913 | Self-calibrating meter with in-meter diffuser A self-calibrating metering system for dispensing chemical granules. The system incorporates a flow sensor configured to sense a greater flow rate at the inlet aperture than at the outlet aperture. Further included is an adjustment mechanism configured to adjust the... | 02/06/2007 |
| 6698368 | Zone control for agricultural product application A method of applying a selected first combination of application rates of each of a plurality of crop inputs on a first zone in a field and applying a selected second combination of application rates of each of the crop inputs on a second zone in the fiel... | 03/02/2004 |
| 6584920 | System and method for adjusting air flow in air seeding applications A system for maintaining an appropriate air flow in an air stream in an air seeder. A fan provides an air stream to carry agricultural materials for distribution across a width of a seeding implement. A tank contains a granular agricultural material and a... | 07/01/2003 |
| 6553299 | Methods and apparatus for precision agriculture operations utilizing real time kinematic global positioning system systems Real time kinematic (RTK) global positioning system (GPS) technology is integrated with precision farming methodologies to provide highly accurate seeding, cultivating, planting and/or harvesting operations. RTK GPS systems are used to control fully or se... | 04/22/2003 |
| 6091997 | Enhanced statistical/status display A centralized monitoring unit for an agricultural implement is disclosed herein. The monitoring unit is preferably used with a planting system including a planting implement coupled to a work vehicle. The implement includes a frame supporting row units wh... | 07/18/2000 |
| 6024035 | Seed planting rate maintenance control with rate display A seed planter performance monitor is disclosed herein. The monitor is used with a planting system including a planter coupled to the tractor. The target rate at which the planter deposits seeds into the soil being planted is controlled with a control sig... | 02/15/2000 |
| 5956255 | Seed planter performance monitor A performance monitor for a seed planting implement is disclosed herein. The monitor is preferably used with a planting system including a planting implement coupled to a tractor. The target rate at which seed is planted by the implement in the soil of an... | 09/21/1999 |
| 5598794 | High accuracy automatically controlled variable linear seed spacing planting apparatus A control system for a mobile planting apparatus which permits discrete plant spacing to be determined and maintained independent of any wheel rotation on the planting apparatus or towing apparatus is disclosed, having: (1) a ground speed sensor wherein t... | 02/04/1997 |
| 5429061 | Crop sprayer guidance system For marking a field with unseeded rows during seeding, the seed box of a seed drill is equipped with a valve unit mounted inside the box for shutting off seed flow to one of the seed cups during selective passes. A control system for the unit allows the s... | 07/04/1995 |
| 5323721 | Planter monitor system A planter monitor system monitors, measures and displays a plurality of planter performance parameters. The system includes a display console, a plurality of row unit modules and a plurality of seed sensors. The system can be used with a wide variety of p... | 06/28/1994 |
| 5025951 | Electronic seed rate system for a grain drill An agricultural implement such as a grain drill or similar seeding implement includes a plurality of transversely spaced seed meters having fluted feed wheels fixed to and transversely movable with a drive shaft which is controlled by an actuator to vary ... | 06/25/1991 |
| 4989524 | Dibber drills A metering and dibbing assembly for use in a dibber drill comprises a rotary feed section, inlet means for introducing seed at successive seed-retaining locations in the rotary feed section, a rotary dibber section having a plurality of dibber elements at... | 02/05/1991 |
| 4928607 | Electronically controlled pneumatic seeder The invention provides a pneumatic seeder wherein the various functions are controlled by electronic means. The seed distributors are operated by as many direct current motors, controlled by an electronic device as a function of the forward speed of the s... | 05/29/1990 |
| 4646941 | Mechanism for discharging granular material Mechanism for discharging granular material, especially seed and fertilizer, and having a bin and seed-flow regulators that variable amounts of material can be supplied to the ground through, whereby a sensor that detects the amount of material or number ... | 03/03/1987 |
| 4624196 | Combined seed drill and fertilizer applicator An agricultural seeder having a plurality of spaced openers for application of fertilizer in a seed row and at a spaced distance therefrom. The implement is supported for locomotion by a primary lower frame which in turn supports a secondary, vertically p... | 11/25/1986 |
| 4524265 | Mechanical acreage counter The mechanical acreage counter of the present invention is connected to a shaft of a planter unit which rotates only when seed is being planted therefrom. The counter includes a first gear connected to the shaft for rotation therewith, a bracket adjustabl... | 06/18/1985 |
| 4477801 | Seed monitor apparatus harness adapter for a convertible planter A harness adapter is disposed between the seed monitor logic circuitry and the individual row unit seed detectors upon conversion of a planter for operation of only a portion of its planting units. The adapter provides a continuous series of connections f... | 10/16/1984 |
| 4343414 | Seed planter drum drive system A drive system is provided for driving a rotatable seed drum of a seed planter which includes a fan for supplying air under pressure to the drum. The drum drive system includes an alternator which is mechanically driven, preferably from a drive for the pl... | 08/10/1982 |
| 4342270 | Digging and planting machine A digging and planting machine is provided having a tubular digging and planting tool mounted on a vehicle travelling along the ground surface, and at least one sensing and signalling means for sensing the resistance of the ground to penetration by the di... | 08/03/1982 |
| 4122974 | Variable speed planter seed drive An electrically adjusted and mechanically driven variable speed pulley transmission provides immediate and accurate changes to the seed dispensing rate of a planter. The variable speed pulley transmission is driven by a ground-engaging wheel and adjusted ... | 10/31/1978 |
| 3949686 | Grain field marker A grain drill having a plurality of closely spaced seeding units is modified to change the pattern of seed flow through one of the seeding units cyclically within the length of a row, so that when the plants emerge, the one row will be visibly different f... | 04/13/1976 |
