Unique Motor Drive Patents (Class 111/921)
  • Patent number: 11516961
    Abstract: A motor creep control system includes at least one motor and a manifold fluidically coupled to the at least one motor and configured to control flow of a fluid through the at least one motor. The manifold includes an input port, an output port, at least one fluid control valve to control the at least one motor, and a motor creep control valve. A first state of the motor creep control directs the fluid from the input port, through the at least one fluid control and motor, and to the at least one output port. Meanwhile, a second state of the motor creep control in conjunction with the at least one fluid control valve being deactivated directs the fluid from the input port that leaks past the deactivated at least one fluid control valve to the at least one output port, while bypassing the at least one motor.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: December 6, 2022
    Assignee: CNH INDUSTRIAL AMERICA LLC
    Inventor: David Hafvenstein
  • Patent number: 8960110
    Abstract: The present invention is directed to a hopper for a seed metering system that has a series of individualized and independently controlled metering units. The hopper has a plurality of discharge openings that can be selectively opened and closed to expose an opening to a respective one of the plurality of metering units. Each seed metering unit is selectively driven by a common drive member, such as a drive shaft. When a seed metering unit is engaged with the drive member, the unit will meter granular material. On the other hand, when the seed metering unit is not engaged with the drive member, the metering unit will not meter granular material. Hence, the present invention provides a seed metering apparatus that provides effective sectional control.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: February 24, 2015
    Assignee: CNH Industrial Canada, Ltd.
    Inventor: Terrance A. Friggstad
  • Patent number: 8931426
    Abstract: The present invention is directed to a hopper for a seed metering system that has a series of individualized and independently controlled metering units. The hopper has a plurality of discharge openings that can be selectively opened and closed to expose an opening to a respective one of the plurality of metering units. Each seed metering unit is selectively driven by a common drive member, such as a drive shaft. When a seed metering unit is engaged with the drive member, the unit will meter granular material. On the other hand, when the seed metering unit is not engaged with the drive member, the metering unit will not meter granular material. Hence, the present invention provides a seed metering apparatus that provides effective sectional control.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: January 13, 2015
    Assignee: CNH Industrial Canada, Ltd.
    Inventor: Terrance A. Friggstad
  • Patent number: 8915200
    Abstract: A metering system for a seeding machine is provided. The metering system includes selectively powered metering sections operable to individually allow or restrict seed dispensation. A damper arrangement is also provided so that pneumatic conveying of the particulate within the machine is consistently maintained when particulate flow is varied between the metering sections.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: December 23, 2014
    Assignee: Morris Industries Ltd.
    Inventors: Barry B. Barsi, Jeffrey J. Gordon, John A. Lesanko, Cory W. K. Ochitwa
  • Patent number: 8701576
    Abstract: The present invention is directed to a hopper for a seed metering system that has a series of individualized and independently controlled metering units. The hopper has a plurality of discharge openings that can be selectively opened and closed to expose an opening to a respective one of the plurality of metering units. Each seed metering unit is selectively driven by a common drive member, such as a drive shaft. When a seed metering unit is engaged with the drive member, the unit will meter granular material. On the other hand, when the seed metering unit is not engaged with the drive member, the metering unit will not meter granular material. Hence, the present invention provides a seed metering apparatus that provides effective sectional control.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: April 22, 2014
    Assignee: CNH Canada, Ltd.
    Inventor: Terrance A. Friggstad
  • 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: 8011309
    Abstract: The invention provides an innovative yet straightforward approach to driving the seed distribution system in planters which feature hinged winged extensions. The flexibility of the hinged winged extensions may allow the planter to adjust to the contours of a field and to fold to facilitate transport of the planter. In one embodiment, for example, the invention may provide a mechanical coupling between several sections of a seed drive shaft which may support and be driven by a hydraulic motor for each of the winged sections. The seed drive system may also be coupled to row units to synchronize and power the distribution of seeds by the planter.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: September 6, 2011
    Assignee: CNH America LLC
    Inventors: Richard J. Jaime, Michael Connors, Leonard A. Bettin, Rodney Samuel Horn
  • Patent number: 7966953
    Abstract: The invention provides an innovative yet straightforward approach to driving the seed distribution system in planters which feature hinged winged extensions. The flexibility of the hinged winged extensions may allow the planter to adjust to the contours of a field and to fold to facilitate transport of the planter. In one embodiment, for example, the invention may provide a mechanical coupling between several sections of a seed drive shaft which may support and be driven by a hydraulic motor for each of the winged sections. The seed drive system may also be coupled to row units to synchronize and power the distribution of seeds by the planter.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: June 28, 2011
    Assignee: CNH America LLC
    Inventors: Richard J. Jaime, Michael Connors, Leonard A. Bettin, Rodney Samuel Horn
  • 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: 7762201
    Abstract: The invention provides an innovative yet straightforward approach to driving the seed distribution system in planters which feature hinged winged extensions. The flexibility of the hinged winged extensions may allow the planter to adjust to the contours of a field and to fold to facilitate transport of the planter. In one embodiment, for example, the invention may provide a mechanical coupling between several sections of a seed drive shaft which may support and be driven by a hydraulic motor for each of the winged sections. The seed drive system may also be coupled to row units to synchronize and power the distribution of seeds by the planter.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: July 27, 2010
    Assignee: CNH America LLC
    Inventors: Richard J. Jaime, Michael Connors, Leonard A. Bettin, Rodney Samuel Horn
  • 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: 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: 7497176
    Abstract: An actuating device for a drive arrangement having a drive transmission operatively connected to a metering structure where a clutch is mounted adjacent to drive transmission, an actuating device is positioned to selectively engage the clutch such that the rotational force transferred from the drive transmission to the metering structure is selectively deactivated when the actuating member engages the clutch.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: March 3, 2009
    Assignee: Tru Count, Inc.
    Inventor: Jeff Dillman
  • 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: 7467698
    Abstract: An actuating device for a drive arrangement having a drive transmission operatively connected to a metering structure where a clutch is mounted adjacent to drive transmission, an actuating device is positioned to selectively engage the clutch such that the rotational force transferred from the drive transmission to the metering structure is selectively deactivated when the actuating member engages the clutch.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: December 23, 2008
    Assignee: Tru Count, Inc.
    Inventor: Jeffrey D. Dillman
  • Patent number: 7395769
    Abstract: A farm implement for applying a product to a row crop or a row seeded field wherein the implement has a plurality of spaced-apart product dispensers mounted thereon, each of which is individually automatically controlled. The rate of product being dispensing from each of the product dispensers is automatically operated dependent upon the ground speed of the individual product dispensers or dependent on other criteria.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: July 8, 2008
    Inventor: Layton W. Jensen
  • Patent number: 7374029
    Abstract: An actuating device for a drive arrangement having a drive transmission operatively connected to a metering structure where a clutch is mounted adjacent to drive transmission, an actuating device is positioned to selectively engage the clutch such that the rotational force transferred from the drive transmission to the metering structure is selectively deactivated when the actuating member engages the clutch.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: May 20, 2008
    Inventor: Jeff Dillman
  • Patent number: 7374030
    Abstract: An actuating device for a drive arrangement having a drive transmission operatively connected to a metering structure where a clutch is mounted adjacent to drive transmission, an actuating device is positioned to selectively engage the clutch such that the rotational force transferred from the drive transmission to the metering structure is selectively deactivated when the actuating member engages the clutch.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: May 20, 2008
    Inventor: Jeff Dillman
  • 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: 7178472
    Abstract: A gearbox, particularly for transmission systems in devices for metering granular and/or materials in powder form, includes a pair of shafts, that is, a drive-input shaft and a drive-output shaft, respectively. On the output shaft is at least one pair of coaxial freewheels, on each of which an end of a respective linkage carrying a movable fulcrum device is active. The opposite end of each linkage is driven with a reciprocating oscillatory motion about the fulcrum device by way of an eccentric device provided on the drive-input shaft in order to convert the reciprocating oscillatory motion into an intermittent rotary motion of each freewheel and consequently to bring about a rotary motion of the drive-output shaft in a preselected direction of rotation.
    Type: Grant
    Filed: November 11, 2002
    Date of Patent: February 20, 2007
    Assignee: Gaspardo Seminatrici S.p.A.
    Inventor: Peter Pleyer
  • 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: 6851377
    Abstract: A hydraulic drive system provides a priority flow of hydraulic fluid to a variable rate drive system for powering the operation of the metering mechanisms before hydraulic fluid is supplied to a secondary drive mechanism for powering the operation of secondary devices, such as the fan mechanism or the loading auger. The hydraulic drive system includes a priority flow divider valve that diverts a predetermined flow rate to the variable rate drive system. The variable rate drive system includes a drive mechanism arranged in series for a plurality of metering mechanisms. The secondary drive system includes a selector valve that permits a selection between the alternative secondary devices. An alternative embodiment of the hydraulic drive system includes a counter balance valve that operates to provide a priority flow to the variable rate drive system.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: February 8, 2005
    Assignee: CNH Canada Ltd.
    Inventors: Dean Mayerle, Dustin G. Burns
  • Patent number: 6715433
    Abstract: A flexible rotatable drive shaft is used to drive a seed meter of a seeding machine. The seeding machine is provided with a seed meter gearbox. The seed meter gearbox has a flexible rotatable drive shaft receiving portion and a gear receiving portion. The gearbox output is drivingly coupled to the seed meter for driving the seed meter. The flexible rotatable drive shaft receiving portion extends outwardly from the gear receiving portion for receiving the drive ferrule of the flexible rotatable drive shaft. The gearbox restrain extends outwardly from the seeding machine and engages the flexible rotatable drive shaft receiving portion. The gearbox restrain comprises two legs that are parallel to the gearbox drive axis. The flexible rotatable drive shaft receiving portion is sandwiched between the two legs to prevent rotation of the gearbox.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: April 6, 2004
    Assignee: Deere & Company
    Inventor: Michael Eric Friestad
  • Patent number: 6182588
    Abstract: A hydraulic circuit having a boost pump in series with a primary (tractor) hydraulic source provides additional fluid power to operate an aircart fan in an air seeding system for which a tractor hydraulic system does not have enough fluid power capacity. The boost pump raises the pressure of the flow delivered to the fan motor up from that pressure delivered from the tractor to a higher pressure. Tractor pressure is supplied to the boost pump inlet, the boost pump is driven by ground engaging wheels of the aircart, and the resulting flow to the aircart fan motor is increased in pressure by the boost pump.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: February 6, 2001
    Assignee: Flexi-Coil Ltd.
    Inventors: Cameron D. Bodie, Danick J. Bardi, Blake R. Neudorf
  • Patent number: 6170412
    Abstract: A hydraulic system for an aircart having a fan cooperable with an air seeder system to distribute material to the ground utilizes two or more fluid power sources combined in parallel. Total fluid capacity is increased so that one source may have reserve capacity for serving other loads. Flow controls for the system are set so that one source maintains at least a minimum flow to a load when the flow provided by the other source diminishes. Specifically, an aircart fan is operated by fluid power combined from a tractor source and a ground driven pump source with controls being provided to control the fin speed and proportions of flow from each source. The ground driven source (boost pump) boosts available fluid power volume to meet demands of the aircart fan. The boost pump is located near the aircart fan and connected with short lines to minimize power loss in the lines.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: January 9, 2001
    Assignee: Flexi-Coil Ltd.
    Inventors: Russell J. Memory, Cameron D. Bodie
  • 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: 6003454
    Abstract: A first torque coupler adapted for use with a second torque coupler having first and second lugs spaced apart by a first distance includes a support, a first member rotatably coupled to the support and including a third lug, and a second member rotatably coupled to the support and including a fourth lug. The first and second members engage one another to prevent unrestricted rotation of the first and second members in the same direction. The first and second members are rotatable in opposite directions when in engagement with at least one of the first and second lugs to move at least one of the third and fourth lugs, a first torque transmitting position in which the third and fourth lugs are spaced from one another by a second distance substantially equal to the first distance to a second position in which the third and fourth lugs are spaced from one another by a third distance unequal to the first distance.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: December 21, 1999
    Assignee: Case Corporation
    Inventors: Guntis Ozers, Joseph A. Michalic
  • Patent number: 5402740
    Abstract: A vehicular machine available for transplanting vegetal seedlings onto seedbed lines comprising; a planting unit which is furnished with a plurality of vegetal seedling mounting tables and planting levers for transplanting vegetal seedlings onto seedbed lines supplied from these mounting tables disposed on the back side of a working truck hauled by a tractive vehicle; and a working step which facilitates an operator to mount himself on the working truck in order to replenish vegetal seedlings to respective mounting tables of the planting unit. The working truck itself is held by a plurality of supporting wheels which are respectively aligned with the level line identical to that of those wheels of the tractive vehicle.
    Type: Grant
    Filed: March 19, 1992
    Date of Patent: April 4, 1995
    Assignee: Iseki & Co., Ltd.
    Inventors: Eiichiro Kinoshita, Shin Watanabe, Yoshikatsu Aoki, Kazuyuki Suzuki, Masahiro Takemoto, Tamaki Kubo, Norihiro Yano
  • Patent number: 4875421
    Abstract: A seeding implement such as a minimum tillage drill including a pair of trailing transport wheels located inwardly of the outermost ends of the implement frame, one of the wheels being a combination transport-drive wheel mounted on a pivoting wheel frame with a portion of the implement frame extending rearwardly over the wheel frame to act as a stop member for maintaining the trailing wheels in a generally level condition during transport but permitting the combination transport-drive wheel to rock downwardly and stay in ground contact when the openers lift the machine on uneven terrain or in hard ground conditions.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: October 24, 1989
    Assignee: Deere & Company
    Inventor: Howard C. Hadley