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| Number | Title | Issue Date |
| 7305810 | Method of operating an agricultural vehicle A method is described for operating an agricultural vehicle to reduce the time taken for rotating components of the crop processing machinery driven by the vehicle engine to reach a standstill. The method comprises the steps of sensing when a signal is generated by ... | 12/11/2007 |
| 7140169 | Feeder controls for a forage harvester An agricultural harvesting machine, such as a forage harvester comprises a set of feedrolls (20, 21, 26, 27) for feeding harvested crop material to a rotating cutterhead (36). The feedrolls are driven by a hydraulic drive means comprising a hydrostatic... | 11/28/2006 |
| 7022012 | Sensitivity adjustment for stone detection system A stone detection system of a harvester that automatically changes its sensitivity to signals from a stone sensor in response to the type of harvesting equipment connected to the harvester is provided. The stone detection system generally includes a stone sensor, a ... | 04/04/2006 |
| 6637179 | Inertial system for detecting foreign objects between contra-rotating rolls A foreign object detector comprises an inertial sensor mounted for displacement with one of the displaceable rolls in the feed mechanism of a forage harvester. When a foreign object is forced through the rolls, the acceleration of the rolls' displacement ... | 10/28/2003 |
| 5921071 | Feeder arrest for use in a harvesting machine An agricultural harvesting machine, such as a forage harvester, comprises a feeder means for feeding crop material to crop processing means and a feeder arrest means for immediately arresting at least a portion of said feeder means upon detection of a for... | 07/13/1999 |
| 5092818 | Metal and hard object detectors with shared fixed support inside a feed roll A forage harvester having a feed mechanism for transporting crop material along a feed path to a rotating cutterhead is provided with a first detector for detecting metal objects in the crop material and a second detector for detecting hard objects. The f... | 03/03/1992 |
| 5078645 | Method and apparatus for hard object detection A thin film highly directional audible sound sensor is mounted within a rotatable feed roll of a forage harvester to detect the presence of stones and other hard foreign objects in a crop material being fed past the feed roll to a cutter mechanism. Air-bo... | 01/07/1992 |
| 4353199 | Stone detector for harvesting machines The unpredictability of the actual characteristics of spurious sounds has resulted in the use of electronic filtering or comparator circuits being less than satisfactory in certain cases, such as for distinguishing between machinery sounds and foreign obj... | 10/12/1982 |
| 4343137 | Crop elevator decelerating means In a harvesting and threshing machine having stone sensing apparatus mounted within an infeed housing, the infeed housing being mounted to the machine and effective to receive crop material from a header and convey the crop material via a crop elevator fr... | 08/10/1982 |
| 4332127 | Combine feeder drive control A self-propelled combine for harvesting a crop and including a crop threshing and separating mechanism and a feeder for feeding crop material into the threshing and separating mechanism. The feeder has an electro-hydraulic control system for engaging and ... | 06/01/1982 |
| 4324324 | Apparatus for declutching a gear selector Agricultural vehicles, such as a forage harvester, have been equipped with metal detectors. The metal detecting device is connected to stop the feed roll mechanism in a fraction of a second. In connection with this, it is important to shift the associated... | 04/13/1982 |
| 4322937 | Harvester with internal metal detector A harvester of the type comprising a pick-up mechanism operative to gather harvested material from the ground and to supply the same to a conveying structure within the harvester is further provided with a metal detector located within the harvester betwe... | 04/06/1982 |
| 4261161 | Agricultural machinery protective system The invention provides a crop harvesting machine comprising crop processing means, feeder means including feed rolls for feeding crop material to the processing means, drive means operable to drive the crop processing means, further drive means operable t... | 04/14/1981 |
| 4193248 | Vehicle protective system The invention relates to crop harvesting machines fitted with detector means for detecting the presence of undesirable objects such as metallic objects. The invention seeks to solve the problem of known machines in which some form of slipping clutch is pr... | 03/18/1980 |
| 3972156 | Speed-independent static magnetic field metal detector A static magnetic field detector for harvesting machines senses the passage of ferrous or magnetic objects utilizing a balanced magnetic field excitation configuration which provides substantial self-cancellation of spurious background signals. A novel fi... | 08/03/1976 |
| 3959953 | Apparatus to detect the passage of ferrous material in crop harvesting machines A ferrous material detector operably associated with a crop harvesting machine including a signal generating means operably associated with the compressing means of a harvester. The signal generating means generates a signal during the normal operation of... | 06/01/1976 |
