Variable Drive Mechanism Patents (Class 111/922)
  • Patent number: 8707878
    Abstract: A system includes a first chamber configured to hold a liquid and a second chamber configured to hold the particles. A first pump transfers the particles from the second chamber to a third chamber. A first valve during a first time period regulates the delivery of the liquid into the third chamber through a first opening. A second opening directs jets of liquid from the third chamber during the first time period to form holes in the ground. A second valve is operable during a second time period to regulate the first pump to transfer the particles to the third chamber. The first valve is operable during a third time period to regulate the delivery of the liquid to the third chamber through the first opening causing jets of the particles to be directed through the second opening into the holes.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: April 29, 2014
    Inventor: James E. Sibert
  • Patent number: 8677914
    Abstract: The invention refers to a method at a seed drill (1) or a planter for placing seeds (27) in the soil. According to the invention the steps executed are that each seed fed out is detected, its placement site in the soil is determined through detection and at least one compound (26, 28) is placed intermittently at at least one predetermined placement site in relation to the specific placement site of each seed. The invention also refers to a device (4) for execution of the method.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: March 25, 2014
    Assignee: Vaderstad-Verken Aktiebolag
    Inventor: Crister Stark
  • Patent number: 8516969
    Abstract: A direct drive electric seed metering system is provided for use with a row crop planter or seed planter that intakes a volume of multiple seeds from a seed hopper, draws individual seeds from the volume of multiple seeds and discharges them into a seed furrow formed in an agricultural field. The direct drive electric seed metering system includes a meter assembly having a meter housing and a seek disk rotatably mounted concentrically in the housing for singulating the seeds. A direct drive mechanism is mounted to the meter assembly for interfacing and driving the seek disk at an angular velocity which corresponds to the travel velocity of the seed planter. A single seed planter can have multiple direct drive electric seed metering systems, and each of the multiple direct drive electric seed metering systems preferably has its own prime mover to effectuate driving the seek disk.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: August 27, 2013
    Assignee: CNH America LLC
    Inventors: Keith Wendte, Brian Adams
  • Patent number: 8281725
    Abstract: A direct drive electric seed metering system is provided for use with a row crop planter or seed planter that intakes a volume of multiple seeds from a seed hopper, draws individual seeds from the volume of multiple seeds and discharges them into a seed furrow formed in an agricultural field. The direct drive electric seed metering system includes a meter assembly having a meter housing and a seek disk rotatably mounted concentrically in the housing for singulating the seeds. A direct drive mechanism is mounted to the meter assembly for interfacing and driving the seek disk at an angular velocity which corresponds to the travel velocity of the seed planter. A single seed planter can have multiple direct drive electric seed metering systems, and each of the multiple direct drive electric seed metering systems preferably has its own prime mover to effectuate driving the seek disk.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: October 9, 2012
    Assignee: CNH America LLC
    Inventors: Keith Wendte, Brian Adams
  • Patent number: 8275526
    Abstract: An actuating system for a planting device. The actuating system has an electric motor that provides an actuating force for a seed shaft. A pneumatic acting member is connected to a source of compressed air through a valve and positioned to engage the electric motor to actuate the electric motor. The source of compressed air and electric motor can thus be connected to a controller that operates the source of compressed air and the electric motor in order to provide selective actuation to control planting of the planting device.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: September 25, 2012
    Assignee: Trimble Navigation Limited
    Inventor: Jeffrey Dillman
  • Patent number: 8151718
    Abstract: A seed meter for a planting machine is provided with an adjustable drive coupling between the seed meter and the planting machine main drive. The drive coupling includes a drive member connected to the planter drive and a driven member coupled to the seed meter shaft. The drive member and driven member are drivingly engagable with one another and held into the engaged position by a biasing member. The drive member and driven member are selectively movable relative to one another to a disengaged position, enabling adjustment of the seed meter relative to the drive by rotation of the meter shaft. Once released, the coupling self-engages.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: April 10, 2012
    Assignee: Deere & Company
    Inventors: Nathan A. Mariman, Michael E. Friestad, Elijan Garner
  • Patent number: 8145396
    Abstract: An actuating system for a planting device. The actuating system has an electric motor that provides an actuating force for a seed shaft. A pneumatic acting member is connected to a source of compressed air through a valve and positioned to engage the electric motor to actuate the electric motor. The source of compressed air and electric motor can thus be connected to a controller that operates the source of compressed air and the electric motor in order to provide selective actuation to control planting of the planting device.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: March 27, 2012
    Assignee: Trimble Navigation Limited
    Inventor: Jeffrey D. Dillman
  • Patent number: 7925404
    Abstract: An actuating system for a planting device. The actuating system has an electric motor that provides an actuating force for a seed shaft. A pneumatic acting member is connected to a source of compressed air through a valve and positioned to engage the electric motor to actuate the electric motor. The source of compressed air and electric motor can thus be connected to a controller that operates the source of compressed air and the electric motor in order to provide selective actuation to control planting of the planting device.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: April 12, 2011
    Assignee: Trimble Navigation Limited
    Inventor: Jeff Dillman
  • Patent number: 7845294
    Abstract: An apparatus for uniformly planting seeds into the earth that can accommodate a even a small quantity of any size seed. An embodiment of the apparatus has a frame, at least one wheel affixed to the frame, and a conveyor belt mounted to the frame. The conveyor belt is connected to the wheel or wheels such that it moves in relation to the rate of rotation along the earth of the wheel or wheels. The conveyor belt has a surface on a top thereof suitable for receiving seeds. A seed box is hingedly affixed to the frame and is movable from a first position over the conveyor belt to a second position away from the conveyor belt. In the first position, the seed box allows seed and soil mixture to be uniformly placed on the conveyor belt.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: December 7, 2010
    Inventor: Leland P. Cade
  • Patent number: 7845293
    Abstract: An apparatus for forming holes in ground and for placing hygroscopic particles into the holes is disclosed. The apparatus includes a first chamber configured to hold a liquid and a second chamber configured to hold the hygroscopic particles. A first pressure mechanism maintains the liquid in the first chamber at a first pressure level, and a second pressure mechanism maintains the hygroscopic particles in the second chamber at a second pressure level. A first valve is operable during a first time period to regulate the delivery of the liquid into a third chamber through a first opening. A second opening is configured to direct jets of liquid from the third chamber during the first time period to form holes in the ground. A second valve is operable during a second time period to regulate the delivery of the hygroscopic particles to the third chamber.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: December 7, 2010
    Inventor: James E. Sibert
  • Patent number: 7726251
    Abstract: A seeding machine having a plurality of row units and a processing circuit. Each of the row units have a seed metering device, a seed placement device and a sensor suitable to detect a parameter related to seed placement. The seed metering device includes a metering member providing a metering action to a plurality of seeds. The seed placement device receives the seeds from the seed metering device. A seed meter drive controller receives an index signal from the sensor on the row unit as well as a reference pulse signal. The processing signal of the drive controllers compares the index signal to the reference signal. Each drive controller is selectively programmable to control an associated motor of the meter drive to produce a desired relationship between the row unit index signal and the reference signal thereby synchronizing the seed placement among two or more rows. block diagram illustrating an alternative arrangement of the meter drive and control system components.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: June 1, 2010
    Assignee: Deere & Company
    Inventors: James R. Peterson, Nathan A. Mariman, Carl S. Silbernagel, Samuel Santiago, Jason D. Walter, Ron G. Landman
  • Patent number: 7717047
    Abstract: A friction drive for an agricultural planter has a linear actuator, which may be hydraulically or pneumatically controlled, to selectively raise or lower a drive wheel into frictional engagement with a carrying wheel. A valve network is fluidly associated with the linear actuator and allows the operator or pilot to variably define the degree of frictional engagement. This allows the operator to vary the amount of frictional engagement of the drive wheel and the carrying wheel, the output of which is used by a material dispensing system to deposited planting material onto a planting surface.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: May 18, 2010
    Assignee: CNH America LLC
    Inventors: Haydon Rice, Leonard Bettin
  • Patent number: 7694638
    Abstract: A liquid metering system for an agricultural implement is modular, having individual metering pumps for each crop row. The pumps are individually controlled for precise application of the liquid input and are preferable electrically driven. A common pump is used, making the system modular in that varying sizes of implements can be produced by varying the number of pumps. A common supply line is used to supply a liquid input from a reservoir to the pumps. Each pump is connected to the common supply line. By connecting each pump to the common supply line, the difficulty of routing individual hoses from a central pump to each row unit are overcome.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: April 13, 2010
    Assignee: Deere & Company
    Inventors: Paul R. Riewerts, Sylvia Ann Wilson
  • Patent number: 7617785
    Abstract: A direct drive electric seed metering system is provided for use with a row crop planter or seed planter that intakes a volume of multiple seeds from a seed hopper, draws individual seeds from the volume of multiple seeds and discharges them into a seed furrow formed in an agricultural field. The direct drive electric seed metering system includes a meter assembly having a meter housing and a seed plate rotatably mounted concentrically in the housing for singulating the seeds. A direct drive mechanism is mounted to the meter assembly for interfacing and driving the seed plate at an angular velocity which corresponds to the travel velocity of the seed planter. A single seed planter can have multiple direct drive electric seed metering systems, and each of the multiple direct drive electric seed metering systems preferably has its own prime mover to effectuate driving the seed plate.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: November 17, 2009
    Assignee: CNH America LLC
    Inventor: Keith W. Wendte
  • Patent number: 7614353
    Abstract: A sowing device having a travelling framework (2) is described, which comprises a storage roll (3) for a seed strip (4) equipped with individual grains (5) of a seed, and an unwinding unit (6) for the seed strip (4) drivable as a function of the travel distance. To ensure a precise deposit of the seed grains (5), it is suggested that a sensor (15) for the individual grains (5) in the seed strip (4) be provided in the area of the seed strip section (14) between the unwinding unit (6) and a ground-proximal deflection roll (8), and a control unit (16), connected on one hand to the sensor (15) and on the other hand to a travel distance encoder (18), activate the drive (17) of the unwinding unit (6) as a function of the difference between the actual location of the seed grains (5) detected by the sensor (15) and a setpoint location predefinable with the aid of the travel distance encoder (18).
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: November 10, 2009
    Assignee: Wintersteiger AG
    Inventors: Josef Hainzl, Christian Stiegler, Franz Spiesberger, Andreas Egger, Franz Diermaier, Walter Dullinger
  • Patent number: 7571688
    Abstract: A seeding machine having a plurality of seed meters receiving rotary input from a common input shaft. First and second gearboxes respectively connect the common rotary input to individual seed meters. A flexible drive extends from the gearbox adjacent the common rotary input to the seed meters. Spring clutches, normally connected, are electrically actuated to disengage the drive to the individual seed meters. The clutches may be integrated in the gearbox adjacent the rotary drive or the gear box for the individual seed meters.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: August 11, 2009
    Assignee: Deere & Company
    Inventors: Michael E. Friestad, Keith L. Felton, Kevin W. Hoehn
  • Patent number: 7555990
    Abstract: A seeding apparatus having a distribution manifold with selectively openable outlet ports thereon, to permit or stop delivery of seed or fertilizer to soil A meter device, responsive to both the number of selected open ports and the speed of the apparatus over the ground, is provided to regulate supply of seed/fertilizer to a distribution manifold. The distribution manifold has a plurality of outlet ports spaced about a periphery of such manifold, each outlet port having a valve to allow opening and closing of individual outlet ports. Soil engaging members on such apparatus are individually raisable from an lowered operative position to a raised inoperative position, and when moved to such inoperative position, valve associated with an outlet port for providing seed and/or fertilizer to such soil engaging member is closed to prevent supply to the associated soil engaging member.
    Type: Grant
    Filed: June 21, 2008
    Date of Patent: July 7, 2009
    Assignee: One Pass Implements Inc.
    Inventor: Patrick M. Beaujot
  • Patent number: 7490565
    Abstract: A seeding apparatus comprising: (a seed distribution metering means including a rotating d drum with apertures on its periphery and a vacuum generator for generating a suction pressure inside the drum so that seeds are attracted to the apertures; (b) feeding system including a hopper, gravitational acceleration chamber, velocity controlling elements such as a flap and continuous belts for feeding seeds at a required amount and speed to the drum; (c) release mechanisms including an air-jet for releasing metered seeds from the drum along a selected trajectory while unselected seeds follow another trajectory, delivery device including an adjustable flow venturi and electronic sensor for controlling delivery of metered seeds.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: February 17, 2009
    Inventor: John Holly
  • Patent number: 7373890
    Abstract: A seed planting unit provides a manifold connecting a vacuum to multiple metering disks. The manifold includes valves to sequentially connect the manifold branches to the seed unit so as to moderate the peak air flow necessary to be handled by the vacuum source reducing horsepower drain and cost of the vacuum source itself.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: May 20, 2008
    Assignee: CNH Canada, Ltd.
    Inventor: Trevor Lawrence Kowalchuk
  • Patent number: 7237496
    Abstract: An apparatus and manufacturing method in which from one to three hydraulic pumps are provided and installed near a front end of the implement, so that a first pump can be easily coupled to the power take-off shaft of the tractor by an operator. In an exemplary embodiment of a system for a planter apparatus, one pump supplies pressure and flow to a hydraulic circuit for operating the vacuum fan subsystem, and optionally a fertilizing subsystem. A second pump supplies pressure and flow to a hydraulic circuit for operating the seed drive subsystem. A third pump supplies pressure and flow to a hydraulic circuit for operating a bulk fill subsystem. A manufacturing method that provides multiple configurations is also disclosed.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: July 3, 2007
    Assignee: CNH America LLC
    Inventors: Leonard A. Bettin, Travis Lester Harnetiaux
  • Patent number: 7171913
    Abstract: 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 flow rate of the meter so as to calibrate the meter according to a known flow rate through a calibrated orifice within the meter. An electromechanical solenoid may be energized by a subcontroller operably coupled to the metering apparatus to allow chemical granules to flow by gravity from the pesticide container that may be disposed above the metering apparatus. The metering apparatus may be disposed on a planter unit designed to deposit granular materials with seed during the planting process. The metering system further includes an in-meter diffuser that receives foreign material and lumps in order to prevent the metering apparatus from becoming clogged.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: February 6, 2007
    Assignee: AMVAC Chemical Corporation
    Inventor: Larry Conrad
  • Patent number: 6863006
    Abstract: A drive mechanism for an agricultural planter includes a first electronic controller, a second electronic controller, a hydraulic valve manifold, hydraulic drives for the seed and fertilizer hoppers, and a feedback sensor from the hydraulic drives to the second electronic controller. The first electronic controller is located in the cab of the tractor connected to the planter, while the second electronic controller is mounted on the planter to control the operation of the hydraulic drives. The feedback sensors provide data as to the operation of the hydraulic drives. Another sensor associated with the forward speed of the planter also provides input to the second electronic controller so that the second controller can coordinate the operational speed of the hydraulic drives to provide the rate of application of the seed and fertilizer products desired by the operator.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: March 8, 2005
    Assignee: CNH America LLC
    Inventors: Jaime Arana Sandoval, Francisco Perez Cervantes, Ivan Gabriel Salcedo Mendoza
  • Patent number: 6145455
    Abstract: An agricultural material metering system includes a metering member, a hydraulically driven actuator, a pump, a rotatable ground driven member, a variable drive control and an actuator coupled to the variable drive control. The metering member is configured to meter agricultural material upon being driven. The hydraulically driven actuator is coupled to the metering member to drive the metering member. The variable drive control is coupled between an inlet of the pump and the metering member and is configured for actuation between a first position in which the hydraulically driven actuator drives the metering member at a first rate and a second position in which the hydraulically driven actuator drives the metering member at a second rate. The rotatable ground driven member is coupled to the pump and drives the pump when rotating. The pump is coupled to the hydraulically driven actuator and displaces fluid upon being driven to drive the hydraulically driven actuator.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: November 14, 2000
    Assignee: Case Corporation
    Inventors: Jacob Gust, Bradley J. Meyer
  • Patent number: 5878680
    Abstract: A linear actuated needle seeder comprising a frame, a seed dispenser assembly further including a shuffler assembly and a capture assembly. The seed shuffler assembly further comprises: an energizeable vibrator having a top portion and a bottom portion, and a seed tray attached to the vibrator. The capture assembly further comprises: a master cylinder supported by the frame and having a cylinder shaft with spaced apart ends operably extending therefrom, a vacuum bar attached to the cylinder shaft, and a slide extending upwardly above the frame and having a slide surface angled in a linearly downward direction toward the seed tray and positioned to enable the vacuum bar to rest thereon and oscillate between an up position and down position in response to the reciprocating movements of the cylinder shaft.
    Type: Grant
    Filed: December 21, 1996
    Date of Patent: March 9, 1999
    Assignee: Bouldin & Lawson, Inc.
    Inventor: Graham Goodenough
  • Patent number: 5598794
    Abstract: 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 the rate of movement relative to the ground is determined independent of wheel rotation of the planting apparatus or towing apparatus; (2) an input/display device for inputting desired linear plant spacing; (3) a variable speed motor for mechanically driving seed metering devices on the planting apparatus at varying rates independent of any wheel rotation of the planting apparatus or towing apparatus, wherein the motor changes speeds in response to an electronic signal; (4) a programmable control circuit communicating electronically with the input/display device and ground speed sensor, wherein the programmable control circuit: (a) determines the number of seeds to be dispensed per linear unit of distance traveled based upon the desired spacing received from t
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: February 4, 1997
    Assignee: Fluid Power Industries, Inc.
    Inventors: Louis C. Harms, Richard Rosenbrock
  • Patent number: 5358055
    Abstract: A partial width seeding attachment includes electronically controlled solenoids which activate hydraulic flow control valves connected to the hydraulic cylinders on respective implement sections. Switches in the tractor cab control the rockshaft of one or more selected sections independently of the other sections to raise the openers on the selected section or sections from contact with the soil. An electronically activated flow reversing valve is connected between the source of hydraulic fluid under pressure and the lift cylinder for each of the sections. Activation of a selected valve after the selective control valve on the tractor is moved to the normal field working position pressurizes the side of the cylinder that raises the openers on the section. The remaining cylinders operate normally to maintain preselected down pressure on the other openers. A master raise switch provides implement lift independent of the position of the individual rockshaft control switches.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: October 25, 1994
    Assignee: Deere & Company
    Inventors: John D. Long, Richard H. Clark
  • Patent number: 5078066
    Abstract: A clutching mechanism for a seed meter incorporates a spring wrapped clutch for selectively disengaging a seed meter on a seed drill in order to tramline fields for agricultural purposes. A common shaft rotates and dispenses seeds from a series of seed meters on the drill. The spring wrapped clutch of the present invention allows for disengagement of singular meters from the rotational actuation of the common shaft. The seed metering clutch incorporates a rotatable drum which dispenses the seed as it is turned. The drum is attached to a driven element which is further attached to a spring. The spring compressibly holds a driving element attached to the rotatable shaft. Seals on the clutch prevent intrusion of foreign matter such as soil into the interior clutch. A selective engagement of the spring causes a decompression on the driving element and consequently, stops the rotation of the seed drum within the seed meter.
    Type: Grant
    Filed: March 29, 1991
    Date of Patent: January 7, 1992
    Inventor: James G. Lafferty
  • Patent number: 5003894
    Abstract: A clutching mechanism for a seed meter incorporates a spring wrapped clutch for selectively disengaging a seed meter on a seed drill in order to tramline fields for agricultural purposes. A common shaft rotates and dispenses seeds from a series of seed meters on the drill. The spring wrapped clutch of the present invention allows for disengagement of singular meters from the rotational actuation of the common shaft. The seed metering incorporates a rotatable drum which dispenses the seed as it is turned. The drum is attached to a driven element which is further attached to a spring. The spring compressibly holds a driving element attached to the rotation shaft. A selective engagement of the spring causes a decompression on the driving element and consequently, stops the rotation of the seed drum within the seed meter.
    Type: Grant
    Filed: December 11, 1989
    Date of Patent: April 2, 1991
    Inventor: James G. Lafferty