Class 460/2 - Foreign material

Subclass of Class 460 - Crop threshing or separating
Definition: Subject matter which detects the passage of objects such
No. of patents: 31
Last issue date: 06/24/2008

Number	Title	Issue Date
7392123	System and method to detect a failed shear bolt supporting a concave of an agricultural combine A system and method for detecting existence of a failed or broken shear bolt supporting all or a portion of a concave of a threshing system of an agricultural combine and utilizing information relating to rates of movement and absence of movement of a concave to det...	06/24/2008
7252587	Crop processing device with relief system A crop processing device includes a rotor with crop engaging means, a sheet partly surrounding the rotor, whereas the sheet is circumferentially moveable with respect to the rotor, and a control providing resistance to circumferential movement of the sheet. ...	08/07/2007
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
7116107	Transmitter loops in series for electromagnetic geophysical surveys The invention relates to a transmitter loop configuration used for ground and downhole electromagnetic geophysical surveys. The loop wire is spread out on the ground surface in such a way as to form several subset loops in series. Each subset loop can be juxtaposed ...	10/03/2006
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
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
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
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
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
5702300	Combine rock door over center closure apparatus An over center closure apparatus for a spring latched rock door for a combine harvester includes a first, free rotating lever arm connected to rotate about the rock door pivot and a second lever arm connected to rotate with the rock door pivot. The second...	12/30/1997
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
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
4466231	Automatic sieve and chaffer adjustment in a combine harvester In a combine harvester, a microprocessor controls the adjustment of the cleaning sieve or sieves and/or chaffer sieve or sieves in response to information keyed into a keyboard by the combine operator. If the actual setting of a device (sieve or chaffer) ...	08/21/1984
4433528	Metal detector apparatus Disclosed is metal detector apparatus for protecting the crop processing unit of a forage harvester. A magnetic field is provided in the area through which crop material is being fed. The field is produced by magnets mounted in a pattern that creates line...	02/28/1984
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
4344074	Magnetic field producing apparatus Metal detectors having parallel magnetic fields produce signals which vary depending upon the shape and orientation of a metal object passing through the field. An improved metal detector sensor includes a magnet of special configuration having a multi-di...	08/10/1982
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
4335565	Latch mechanism for combine having electronic and mechanical stone detectors A latch mechanism for the trap door of a combine stone detector is disclosed wherein the latch mechanism is operable to release the trap door for ejection of a stone or other non-crop foreign matter from the feed path of the crop being harvested when the ...	06/22/1982
4335564	Electronically actuated stone trap trip mechanism A trip mechanism, cooperable with an electronic stone detection device on a combine, is disclosed wherein, upon the reception of a signal from the electronic stone detection device indicating that a stone has been detected in the feed path of the crop bei...	06/22/1982
4335563	Combine stone trap latch release A release mechanism for a combine stone trap latch is disclosed wherein the detection of a stone in the crop feed path by either electronic or mechanical detection mechanisms can trigger the release of the latch from a trap door to permit the stone to be ...	06/22/1982
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
4322933	Stone trapdoor trip mechanism 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...	04/06/1982
4305244	Feeder house design for a combine In an infeed housing for a harvesting and threshing machine there is provided an improved infeed housing design that redirects the flow of crop material along its predetermined path of travel at a selectively creatable discontinuity in the floor of the in...	12/15/1981
4294062	Sensing bar In an infeed housing for a harvesting and threshing machine there is provided an improved sensing bar design that incorporates an inclined section into the bar to increase the percentage of impactions likely to occur by rocks and other non-frangible objec...	10/13/1981
4290255	Feed roll apparatus A feed roll on a forage harvester has a center support ring secured to the outer surface of the feed roll. This improves space availability inside the roll for a metal detector and improves the operating effectiveness of the metal detector....	09/22/1981
4275546	Stone discriminator An illustrative embodiment of the invention provides an acoustic sensor for detecting stones and other hard foreign objects mixed within crop material in a harvesting machine susceptible to damage thereby. The acoustic sensor comprises a sensing surface d...	06/30/1981

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Class 460/2 - Foreign material