Screen Patents (Class 460/102)
  • Patent number: 11641800
    Abstract: An agricultural harvesting machine includes crop processing functionality configured to engage crop in a field, perform a crop processing operation on the crop, and move the processed crop to a harvested crop repository, and a control system configured to identify a weed seed area indicating presence of weed seeds, and generate a control signal associated with a pre-emergence weed seed treatment operation based on the identified weed seed area.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: May 9, 2023
    Assignee: Deere & Company
    Inventors: Sebastian Blank, Curtis R. Hammer, Noel W. Anderson, Dohn W. Pfeiffer, Gurmukh H. Advani
  • Patent number: 11206763
    Abstract: A harvester may include a crop path along which crops are moved, a working member to interact with weed seeds moving along the crop path and a controller. The controller is to receive data indicating forthcoming weed seeds and is to output control signals controlling the working member based on the data.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: December 28, 2021
    Assignee: Deere & Company
    Inventors: Nathan R. Vandike, Bhanu Kiran Palla, Glenn E. Pope, Ryan P. Mackin, Bradley K. Yanke, Mark M. Chaney
  • Patent number: 10986778
    Abstract: An example harvester that may include a weed seed devitalizer and a controller that automatically adapts or adjusts the weed seed devitalizer. The controller is to receive data from at least one sensor indicating forthcoming weed seeds and to output control signals controlling the weed seed devitalizer based on the data.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: April 27, 2021
    Assignee: Deere & Company
    Inventor: Mark M. Chaney
  • Patent number: 10716255
    Abstract: The invention provides an adaptive control system and a regulating method for the threshing separation load of the combined harvester and the longitudinal axis. The control system mainly comprises entrainment loss monitoring device, grain breaking rate monitoring device, device for regulating clearance of cutting concave outlet, jitter board load monitoring device, return plate load monitoring device and on-line monitoring and control system. According to the differential signal of the impact force sensor and the inertial force sensor, the cutting flow threshing and separating device is calculated by real-time monitoring of the grain breaking rate, the entrainment loss rate, the tangential groove outlet gap, the cutting drum speed and the longitudinal axis drum speed.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: July 21, 2020
    Assignee: JIANGSU UNIVERSITY
    Inventors: Lizhang Xu, Chuncai Wei, Yaoming Li, Zhenwei Liang
  • Patent number: 8876927
    Abstract: A radiator screen arrangement (10) for a combine harvester is provided. A screen (12) through which air, which is to pass through a radiator, is drawn by a fan. Rotating means (16) are provided for rotating the screen. Blanking means (18), past which the screen is rotated, provides a blanked off area of the screen which is not subject to the induction pressure of the fan and from which particles can therefore be more easily removed. The arrangement is characterised in that the blanking means has a leading edge (18a) which is of generally spiral shape so that the particles on the outer surface of the screen which enter the blanked-off area can reach the outer periphery (12d) of the rotating screen without being exposed to the induction pressure of the fan and hence have an improved chance of being detached from the screen.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: November 4, 2014
    Assignee: AGCO do Brasil Comercio a Industria Ltd
    Inventor: Brian Jay Hollatz
  • Patent number: 8880299
    Abstract: A combine side-shaking control system and a method for controlling operation of a side-shaking mechanism in a combine. The control system includes at least one sieve for separating crop material from other materials and a movable side-shaking mechanism coupled to the at least one sieve and configured to move the at least one sieve in a side-to-side motion. The control system also includes at least one sensor for sensing at least one operating condition of a combine system. The control system further includes a controller for receiving the at least one operating condition and causing the side-shaking mechanism to stop moving the at least one sieve in the side-to-side motion or start moving the at least one sieve in the side-to-side motion based on the at least one operating condition.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: November 4, 2014
    Assignee: CNH Industrial America LLC
    Inventors: Craig E. Murray, Orlin W. Johnson, Dale W. Panoushek, Tyler L. Nelson, Kevin S. Schwinn, Bin Lou
  • Patent number: 8097050
    Abstract: A vacuum apparatus rotatable about an axis through a filter screen for continually removing contaminants, which utilizes an asymmetrical vacuum arm supported by a center hub, and large longitudinally extending asymmetrical vacuum orifices in portions of the arm on opposite sides of the hub, operable for removing large elements of debris, trash and the like from the screen. One of the arm portions cleans a radial outer region of the screen, and the other cleans an inner region, the arm portions being generally even in mass for balance. A knife disposed on the screen cleans and cooperates with a brush on the arm for breaking up larger elements of trash. The arm is also manually removable via a snap together vacuum seal joint, for service and cleaning.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: January 17, 2012
    Assignee: CNH America LLC
    Inventors: Brian K. Johnson, Panos Tamamidis, David A. Scott
  • Patent number: 7998245
    Abstract: A method and apparatus are disclosed for unblocking a perforated rotary filter screen. In the invention, at least one jet of high pressure air is directed at a surface of the filter screen as the filter screen is rotated and the or each jet of air is moved in a direction transverse to the direction of movement of the perforations in the screen in order to cause the or each air jet to trace a spiral or helical path over the surface of the screen.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: August 16, 2011
    Assignee: CNH America LLC
    Inventors: Lode A. Demonie, Yvan C. C. Vandergucht
  • Publication number: 20080274777
    Abstract: A bulk loader including an air inlet, an air-particulates separating chamber in communication with the air inlet, an air outlet in communication with the air-particulates separating chamber, means for moving air and particulates into the air-particulates separating chamber, means for separating air from particulates positioned within the air-particulates separating chamber, means for removing air from the air-particulates separating chamber, an auger, the auger being in communication with the air-particulates separating chamber by way of an auger opening in the air-particulates separating chamber, and a screen positioned across a portion of the auger opening adapted to permit air to flow therethrough and adapted to prevent particulates from flowing therethrough.
    Type: Application
    Filed: May 1, 2007
    Publication date: November 6, 2008
    Inventor: Gary Lane Francis
  • Patent number: 7396278
    Abstract: The movable cleaning shoe frame is provided with internal sidewalls. The frame supports a sieve for receiving grain to be cleaned. The sieve is provided with longitudinally extending dividers that define a plurality of longitudinally extending grain flow channels. The sidewalls and the dividers are provided with cleaning shoe spreaders that extend into the longitudinally extending grain flow channels above the sieve. Movement of the cleaning shoe drives the spreaders to flap back and forth. This flapping action of the spreaders distributes the grain to be cleaned transversely across the sieve so that the cleaning assembly operates more efficiently.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: July 8, 2008
    Assignee: Deere & Company
    Inventors: Jeffrey Arthur Nelson, Jason Thomas Abbott, Kenneth Ralph Clifton
  • Patent number: 6790137
    Abstract: A crop chaffer for combines features air jets which deliver an air blast to the grain and chaff. The air jets and sifting screens are arranged in a cross sectionally “stair step” pattern in which the tread of each stair is the screen and the riser of the each stair has the air jet located thereon. The air jets do not allow grain passage, while the apertures in the screens do not produce a strong current of air. The chaffer is divided into individually separable and replaceable elements, thus greatly easing the burden of changing chaffers in the combine.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: September 14, 2004
    Inventor: Marvin James Gorden
  • Patent number: 5795223
    Abstract: There is described a screen device (3) for a harvester-thresher for a test field, comprising at least one frame (9) receiving a cleaning screen (11) and an adjusting means (12) for adjusting the frame (9) pivotally mounted about a transverse axis (10) in the chassis (1), where the adjusting means (12) consists of an actuating shaft (13) parallel to the swivel axis (10), mounted in the chassis (1) and connected to a swivel drive, which actuating shaft has at least one swivel arm (14) connected with the frame (9) via a connecting rod (15).
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: August 18, 1998
    Assignee: Wintersteiger GmbH
    Inventors: Franz Spiesberger, Johann Aigner
  • Patent number: 5707284
    Abstract: Apparatus is disclosed for the simultaneous adjustment and setting of a pair of combine screens. A tie bar arrangement is provided, interconnecting at least a pair of side-by-side sieve screens. An operating handle is pivotally mounted to the frame and is pivotally connected to the tie bars and extends outwardly of the apparatus for ease of use. A scale or gauge is provided to indicate the amount of handle movement and therefore, screen opening.
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: January 13, 1998
    Inventor: Frederick J. King
  • Patent number: 5059154
    Abstract: A method and apparatus for removing foreign matter from a harvested crop and for destroying the foreign matter, wherein grain produced by a threshing process is passed over a screen to allow relatively fine foreign matter to fall through the screen, while the grain is conveyed to a receptacle, and the foreign matter preferably is directed to a pair of rollers operative to crush the foreign matter to present germination of any seeds therein. Foreign matter removed during the threshing process also preferably is directed to a pair of rollers for crushing.
    Type: Grant
    Filed: October 19, 1990
    Date of Patent: October 22, 1991
    Assignee: The Board of Trustees of the University of Arkansas
    Inventor: John Reyenga
  • Patent number: 4943260
    Abstract: A mobile collector or harvester for weed seeds that are normally discharged onto the ground during a combining operation, is connected to trail a conventional grain combine, and collects the straw and the tailings discharged from the separating sieve that normally discharges small chaff and seeds onto the ground. The harvester frame has a conveyor for conveying straw and chaff onto a separate shaker screening member, which is of size to let the small weed seeds drop onto a grain pan and then into a hopper, while the straw is retained on the top of the screen and discharged onto the ground. A separate auger conveyor is used for elevating the weed seeds from the hopper into a storage tank, which is then periodically emptied through the use of another auger conveyor. The entire unit is self-contained including an internal combustion engine power unit, that drives a hydraulic pump for operating hydraulic motors through suitable valves.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: July 24, 1990
    Inventor: Arthur J. Fossum