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| Number | Title | Issue Date |
| 7721515 | Agricultural harvesting machine with a foreign-object detection device An agricultural harvesting machine for harvesting and/or processing crop material has a transfer device for transferring crop material, an intake device that includes a foreign-object detection device for detecting foreign objects in a monitoring region of a crop ma... | 05/25/2010 |
| 7523599 | Method and device for adjusting the sensitivity of a foreign-object detection device In a method and a device adjust the sensitivity of a detection device for foreign objects in an agricultural harvesting machine by way of which interfering signals are eliminated despite different and constantly changing harvesting conditions, thereby enabling preve... | 04/28/2009 |
| 7520111 | Stone detection method and apparatus for a harvester A hard object or stone detection method and apparatus for detecting and removing discrete hard foreign objects from mobile agricultural equipment, particularly an agricultural harvester including apparatus for providing a flow of cut crop material to an elevator for... | 04/21/2009 |
| 7472532 | Metal detector arrangement A forage harvester comprises a feeder for feeding harvested crop material to the processing mechanism along a crop feed path It is equipped with a foreign object detector for signaling the presence of foreign objects in said harvested crop. The detector comprises a ... | 01/06/2009 |
| 7464525 | Intake conveyor mechanism control for an agricultural working machine An agricultural working machine has intake conveyor mechanisms, a hydraulic circuit via which the intake conveyor mechanisms are hydraulically driven and including at least one hydraulic motor which drives the intake conveyor mechanisms, at least one switching valve... | 12/16/2008 |
| 7207165 | Non-frangible object detection method and apparatus for use with harvester A method and apparatus for use with a non-frangible object detection mechanism on an agricultural harvester, the detection mechanism including a sensing surface and a sensor for sensing force applied to the sensing surface that is associated with a foreign object ad... | 04/24/2007 |
| 6779323 | Elongate barrier system for use with lawn mower decks One or more elongate barriers are provided that are movably (in one configuration pivotably) mounted proximate the outside of a grass cutting deck. When one of the barriers encounters a foreign object in a certain manner, the barrier moves towards its “tripped” ... | 08/24/2004 |
| 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 |
| 6601372 | Stone detection method and apparatus for harvester An agricultural harvester having a header with a reel and an auger, wherein the reel and the auger provide crop material to an elevator and a foreign object detecting mechanism, wherein the foreign object detecting mechanism includes a foreign object dete... | 08/05/2003 |
| 6430903 | Nonmetallic debris detector for harvester equipment An apparatus for detecting nonmetallic debris in plant material collected with harvester equipment. As the plant material is collected, a signal generator transmits a signal capable of distinguishing the nonmetallic debris from the plant material, and a s... | 08/13/2002 |
| 6397570 | Stopping device for a crop transport mechanism A crop harvesting machine includes a crop transport or feed mechanism including a feed roller to which a toothed wheel is fixed. A detent in the form of a pivotally mounted lever carries a cam or tooth, the detent being pivotable between a first position ... | 06/04/2002 |
| 6393813 | Feed conveyor and crop receiving assembly braking system An agricultural harvesting machine has a feed conveyor assembly arranged in the front region and a crop receiving assembly attached thereto. The two drive shafts of these assemblies are fitted with drive pulleys over which a common belt is entrained to dr... | 05/28/2002 |
| 6381932 | Harvesting machine A harvesting machine includes a crop intake arrangement including either a reel or a crop hold down which operate to aid in the advancement of harvested crop into the machine for further processing. In the event of a jam or the presence of metal occurring... | 05/07/2002 |
| 6324822 | Method of detecting foreign objects in a harvesting machine A crop stream passes longitudinally at a feed velocity varying relative to a predetermined feed velocity in a harvesting machine between conveyor elements which transversely compress the stream and at least one of which is transversely deflectable. A ston... | 12/04/2001 |
| 6318056 | Device for monitoring the intake subassembly of an agricultural harvesting machine An intake subassembly for an agricultural harvesting machine, in particular a self-propelled forage harvester for corn, grass and the like, including a cutting cylinder, feed rollers, and compression rollers, has a cut-out clutch for bringing the feed rol... | 11/20/2001 |
| 6298641 | Stone ejection for a feederhouse on an agriculture combine The apparatus is an improvement to a feederhouse on an agricultural combine. The apparatus has a first acoustic array having a first sounding board and acoustic sensor positioned beneath the front drum and feederhouse floor. There is a second acoustic arr... | 10/09/2001 |
| 6269618 | Acoustic stone detection for a feederhouse on an agricultural combine A feederhouse on an agricultural combine. Having a first acoustic array having a first sounding board and acoustic sensor positioned beneath the front drum and feederhouse floor. A second acoustic array positioned behind the front drum and between the con... | 08/07/2001 |
| 6252397 | Metal detecting device for a crop conveyor A metal detecting device for a crop conveyor has several closely spaced permanent magnets fixed within a hollow feed-roller in parallel with the shaft thereof. One pole of each magnet is directed radially outwardly such that its magnetic field penetrates ... | 06/26/2001 |
| 6105347 | Device and method for locating and removing foreign bodies in agricultural machinery A conveying device for material to be chopped with conveying rollers comprises a foreign body detection device and a chopper mechanism whose signals are fed to a control device which controls rapid stopping of the conveying rollers when a foreign body det... | 08/22/2000 |
| 5979150 | Connection of a shear bar to shear bar support of a forage harvester A shear bar support and/or a shear bar of a forage harvester is provided with a magnet acting on the respective opposite part. The magnet may be powered electrically and depending on an operation mode of the forage harvester. The magnet is located between... | 11/09/1999 |
| 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 |
| 5901534 | Metal detector for detecting metal in harvested product flow A metal detector for detecting metal in a harvested product flow has a plurality of permanent magnets for producing a magnet field which passes through a harvested product flow region, a plurality of coils associated with the permanent magnets so that whe... | 05/11/1999 |
| 5819512 | Apparatus and method for sensing material build-up An apparatus and method is disclosed for sensing material build-up, such as the undesirable build-up of cotton in a mechanized cotton harvester. A tube is mounted for eccentric rotation adjacent an area where build-up occurs, such as near a doffer. The tu... | 10/13/1998 |
| 5797250 | Forage harvester feed roll assembly designed for minimizing false tripping of a metal detector system A forage harvester includes a feed roll assembly for feeding a mat of crop across a fixed shear bar located adjacent a rotating cutterhead for cooperating with the cutterhead knives to cut the mat of crop into lengths. The feed roll assembly includes fron... | 08/25/1998 |
| 5600941 | Compensation for start-up transients In a two-channel magnetic metal detector for a forage harvester, positive and negative adaptive detection thresholds are varied according to long term changes in the noise component induced in detection coils by moving ferrous parts of the crop feed mecha... | 02/11/1997 |
| 5600942 | Adaptive thresholding for metal detection A two-channel metal detector system disposed adjacent the crop feed path of a harvester to detect ferrous metal objects in the crop material is provided with both positive and negative adaptive detection thresholds for each channel, the thresholds being i... | 02/11/1997 |
| 5531062 | Tensioning mechanism for upper mower conditioner roll A mower conditioner includes parallel upper and lower conditioning rolls with the upper roll having opposite ends respectively rotatably mounted in a pair of vertically swingable arms and thereby being moveable toward and away from the lower roll. Associa... | 07/02/1996 |
| 5521514 | Broken tine detector for agricultural machines A broken tine detector for agricultural machines is provided for machines such as balers and forage harvesters. The tines form a first plate of a capacitor which rotates about the axis of a reel. The second plate of the capacitor may be provided by a back... | 05/28/1996 |
| 5507137 | Grass cutting device A grass cutting device suitable for automatic and unattended operation, comprises at least one drive wheel; a power unit operatively coupled to said drive wheel to propel said device; a cutter mechanism to cut grass over which said device passes and obstacle detect... | 04/16/1996 |
| 5444965 | Continuous and autonomous mowing system The invention relates to an automatic, self-contained machine for continuously mowing grass. The machine is powered by means of photovoltaic cells (10) and can be wheeled (15) or tracked. A device comprising a microcomputer programmed by an algorithm allo... | 08/29/1995 |
| 5444966 | Metal detection apparatus for agricultural harvester An agricultural harvesting machine having feed rolls for feeding crop material along a feed path to a cutterhead which chops the crop material is provided with a metal detector for detecting ferrous metal objects passing along the feed path. The metal det... | 08/29/1995 |
| 5343676 | Device for recognizing ferromagnetic foreign bodies, in particular in respect of harvesting machines In a device for recognizing ferromagnetic foreign bodies, for protecting the working members of a harvesting machine, having a magnetic field generating device (9), the lines of flux of which run transversely to the direction of transport, and having assi... | 09/06/1994 |
| 5070682 | Acoustic detector with start-up control In a forage harvester having an acoustic detector for sensing air-borne sounds produced by the impact of hard foreign objects on the crop feed mechanism of the harvester, a start-up control is provided for inhibiting the detector output during the interva... | 12/10/1991 |
| 4854113 | Digital noise cancellation in a metal detector A method and apparatus for cancelling cyclically recurring noise induced in a magnetic metal detector by movement of ferrous machine parts in the field of the detector provides for periodically sampling the output of the metal detector, delaying each samp... | 08/08/1989 |
| 4805385 | Variable sensitivity metal detection system In a forage harvester having a metal detector positioned within a first feed roll and a second feed roll whose displacement from the first feed roll varies with the bulk of crop material passing between the feed rolls, the sensitivity of the metal detecto... | 02/21/1989 |
| 4788813 | Metal detection in the vicinity of ferrous boundaries In a forage harvester having a metal detector with permanent magnets located within a crop feed roll, additional permanent magnets are positioned beyond the ends of the feed roll and at a distance greater than the radius of the feed roll from the axis of ... | 12/06/1988 |
| 4776154 | Stone detector for field chopper An agricultural machine has a machine frame adapted to move along the ground in a normal travel direction, a crop cutter on the front of the frame, and a crop comminuter carried on the frame behind the cutter. An intake device including a generally fixed ... | 10/11/1988 |
| 4758788 | Metal detector for intake of field chopper An apparatus for detecting magnetically sensible objects in an object stream longitudinally passing a predetermined location, for instance at the intake end of the conveyor of a field chopper, has according to the invention a support at the location exten... | 07/19/1988 |
| 4720963 | Method of detecting stones in the intake of a field chopper A hard foreign body in a stream of cut crop being moved by a conveyor in an agricultural machine to a crop comminuter of the machine is detected by first compressing the stream of cut crop transversely of its displacement direction between a pair of feed ... | 01/26/1988 |
| 4639666 | Metal detector sensitivity adjustment and test assembly The metal detector circuitry for a forage harvester is provided with a socket for receiving a pluggable unit, the arrangement being such that a resistor in the pluggable unit is connected into the detection circuitry of a metal detector whereby the sensit... | 01/27/1987 |
