Patents by Inventor Dirk Weichholdt

Dirk Weichholdt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11375665
    Abstract: A harvest header for a harvesting machine includes a carrying frame, a mechanism for receiving or cutting harvest material from a field, a control device, a power-operated actuator operably controlled by the control device, and a transverse conveyor screw movably controlled between two or more positions. The position of the transverse conveyor screw is adjustably controlled by the actuator in order to transport the harvest material to a discharge opening. The control device independently controls the actuator based on at least one harvest material property.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: July 5, 2022
    Assignee: DEERE & COMPANY
    Inventors: Christina Fries, Friedrich Lauer, Eric Loutz, Oliver Klein, Lutz Bischoff, Dirk Weichholdt
  • Patent number: 11109535
    Abstract: A combine harvester includes a load-bearing undercarriage movable via a drivable device engaged in the ground, a threshing and separating device attached to the load-bearing undercarriage, and a feeder house attached to the load-bearing undercarriage. The feeder house includes an endless traction mechanism which circulates about a vertically movable lower deflection roller and a drivable upper deflection roller. A harvesting attachment is coupled to the feeder house for receiving or cutting off harvested crops which are lying or standing upright on a field and which are able to be supplied via the feeder house to the threshing and separating device. An actuator is actuated by an external force arranged for adjusting the vertical position of the lower deflection roller and is connected to a control device which is coupled to a sensor for determining a throughput by a transmission of a signal.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: September 7, 2021
    Assignee: DEERE & COMPANY
    Inventors: Christina Fries, Friedrich Lauer, Eric Loutz, Lutz Bischoff, Oliver Klein, Dirk Weichholdt
  • Patent number: 11044847
    Abstract: A cutter head for a harvester, with a cutterbar for cutting crop from a field, a reel with reel fingers which is disposed above the cutterbar, and a cross conveyor for transporting the cut crop to a rear discharge opening. The reel includes reel arms that can be driven about a rotating axis, reel finger carriers supported on the reel arms so they can rotate about the lengthwise axes of the arms, with reel fingers mounted thereon, and an externally powered actuator connected to an electronic control unit for adjusting the rotary angle of the reel finger carrier relative to the reel arms.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: June 29, 2021
    Assignee: DEERE & COMPANY
    Inventors: Christina Fries, Friedrich Lauer, Eric Loutz, Lutz Bischoff, Oliver Klein, Dirk Weichholdt
  • Patent number: 10874050
    Abstract: A chopping blade for a straw chopper comprises a fastening opening, two side faces, and cutting edges arranged on one or both ends of the side faces. At least one of the side faces is equipped with means for reducing the frictional resistance of the chopping blade relative to the air and/or the chopping material.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: December 29, 2020
    Assignee: Deere & Company
    Inventors: Oliver Klein, Martin Bueermann, Dirk Weichholdt
  • Patent number: 10757859
    Abstract: A system for controlling an operative parameter of a harvesting platform of an agricultural harvesting machine comprises a sensor adapted to provide downed crop information indicative of a characteristic of downed crop in a field to be harvested and an electronic control unit adapted to control an operative parameter of at least one of a reel and a cutter bar table position of the harvesting platform based upon the downed crop information.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: September 1, 2020
    Assignee: Deere & Company
    Inventors: Cristian Dima, Dohn W. Pfeiffer, Dirk Weichholdt, Martin Bueermann
  • Publication number: 20200163279
    Abstract: A harvest header for a harvesting machine includes a carrying frame, a mechanism for receiving or cutting harvest material from a field, a control device, a power-operated actuator operably controlled by the control device, and a transverse conveyor screw movably controlled between two or more positions. The position of the transverse conveyor screw is adjustably controlled by the actuator in order to transport the harvest material to a discharge opening. The control device independently controls the actuator based on at least one harvest material property.
    Type: Application
    Filed: November 26, 2019
    Publication date: May 28, 2020
    Inventors: Christina Fries, Friedrich Lauer, Eric Loutz, Oliver Klein, Lutz Bischoff, Dirk Weichholdt
  • Publication number: 20200022309
    Abstract: A combine harvester includes a load-bearing undercarriage movable via a drivable device engaged in the ground, a threshing and separating device attached to the load-bearing undercarriage, and a feeder house attached to the load-bearing undercarriage. The feeder house includes an endless traction mechanism which circulates about a vertically movable lower deflection roller and a drivable upper deflection roller. A harvesting attachment is coupled to the feeder house for receiving or cutting off harvested crops which are lying or standing upright on a field and which are able to be supplied via the feeder house to the threshing and separating device. An actuator is actuated by an external force arranged for adjusting the vertical position of the lower deflection roller and is connected to a control device which is coupled to a sensor for determining a throughput by a transmission of a signal.
    Type: Application
    Filed: July 10, 2019
    Publication date: January 23, 2020
    Inventors: Christina Fries, Friedrich Lauer, Eric Loutz, Lutz Bischoff, Oliver Klein, Dirk Weichholdt
  • Publication number: 20190327892
    Abstract: The present disclosure concerns a cutter head for a harvester, with a cutterbar for cutting crop from a field, a reel with reel fingers which is disposed above the cutterbar, and a cross conveyor for transporting the cut crop to a rear discharge opening. The reel includes reel arms that can be driven about a rotating axis, reel finger carriers supported on the reel arms so they can rotate about the lengthwise axes of the arms, with reel fingers mounted thereon, and an externally powered actuator connected to an electronic control unit for adjusting the rotary angle of the reel finger carrier relative to the reel arms.
    Type: Application
    Filed: April 25, 2019
    Publication date: October 31, 2019
    Inventors: CHRISTINA FRIES, FRIEDRICH LAUER, ERIC LOUTZ, LUTZ BISCHOFF, OLIVER KLEIN, DIRK WEICHHOLDT
  • Patent number: 10356976
    Abstract: A drive arrangement for the reciprocating drive of a cutter bar comprises an input element which can be set into a continuous pivoting movement by a drive device, and an output element which is coupled to the cutter bar and is coupled to the input element by a coupling rod. The output element is pivotably connected to a first end of a first lever and of a second lever, which levers, for their part, are pivotably mounted. The levers and the output element are dimensioned in such a manner that the output element essentially only carries out a lateral movement.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: July 23, 2019
    Assignee: DEERE & COMPANY
    Inventors: Martin Bueermann, Dirk Weichholdt, Eric Pellegrini, Saravanan Tamilarasan, Steve Guthoerl, Ferdinand Zumbach
  • Patent number: 10201128
    Abstract: A straw chopper (42) for a combine harvester (10) is provided with a housing (54-60) that has an inlet (72) and an outlet (74), a rotor (46) with suspended chopping blades (48) that is arranged in the housing (54-60), adjustably arranged counter-blades (62) and a straw dam (64). The adjustments of the straw dam (64) and of the counter-blades (62) are coupled to one another.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: February 12, 2019
    Assignee: Deere & Company
    Inventor: Dirk Weichholdt
  • Publication number: 20190021226
    Abstract: A system for controlling an operative parameter of a harvesting platform of an agricultural harvesting machine comprises a sensor adapted to provide downed crop information indicative of a characteristic of downed crop in a field to be harvested and an electronic control unit adapted to control an operative parameter of at least one of a reel and a cutter bar table position of the harvesting platform based upon the downed crop information.
    Type: Application
    Filed: November 2, 2017
    Publication date: January 24, 2019
    Inventors: Cristian Dima, Dohn W. Pfeiffer, Dirk Weichholdt, Martin Bueermann
  • Publication number: 20190000018
    Abstract: A chopping blade for a straw chopper comprises a fastening opening, two side faces, and cutting edges arranged on one or both ends of the side faces. At least one of the side faces is equipped with means for reducing the frictional resistance of the chopping blade relative to the air and/or the chopping material.
    Type: Application
    Filed: June 28, 2018
    Publication date: January 3, 2019
    Inventors: Oliver Klein, Martin Bueermann, Dirk Weichholdt
  • Publication number: 20180139897
    Abstract: A drive arrangement for the reciprocating drive of a cutter bar comprises an input element which can be set into a continuous pivoting movement by a drive device, and an output element which is coupled to the cutter bar and is coupled to the input element by a coupling rod. The output element is pivotably connected to a first end of a first lever and of a second lever, which levers, for their part, are pivotably mounted. The levers and the output element are dimensioned in such a manner that the output element essentially only carries out a lateral movement.
    Type: Application
    Filed: July 13, 2017
    Publication date: May 24, 2018
    Inventors: Martin Bueermann, Dirk Weichholdt, Eric Pellegrini, Saravanan Tamilarasan, Steve Guthoerl, Ferdinand Zumbach
  • Patent number: 9872439
    Abstract: A combine (10) includes a cleaning system (28) and an air conduit (80), which air conduit is arranged outside of a side wall (78) and through which the cleaning air is conducted downstream of the cleaning screens (48, 50, 66) to a suction blower (86) of the straw chopper (68), which suction blower is driven by a drive shaft (96).
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: January 23, 2018
    Assignee: DEERE & COMPANY
    Inventors: Norbert Pohlmann, Dirk Weichholdt, Eric Loutz, Rico Guido Priesnitz, Benjamin Peschel, Christina Fries, Gregor Diessner, Peter Mischler, Oliver Klein, Friedrich Lauer
  • Publication number: 20170112066
    Abstract: A combine (10) includes a cleaning system (28) and an air conduit (80), which air conduit is arranged outside of a side wall (78) and through which the cleaning air is conducted downstream of the cleaning screens(48, 50, 66) to a suction blower (86) of the straw chopper (68), which suction blower is driven by a drive shaft (96).
    Type: Application
    Filed: October 3, 2016
    Publication date: April 27, 2017
    Inventors: Norbert Pohlmann, Dirk Weichholdt, Eric Loutz, Rico Guido Priesnitz, Benjamin Peschel, Christina Fries, Gregor Diessner, Peter Mischler, Oliver Klein, Friedrich Lauer
  • Publication number: 20170086379
    Abstract: A straw chopper (42) for a combine harvester (10) is provided with a housing (54-60) that has an inlet (72) and an outlet (74), a rotor (46) with suspended chopping blades (48) that is arranged in the housing (54-60), adjustably arranged counter-blades (62) and a straw dam (64). The adjustments of the straw dam (64) and of the counter-blades (62) are coupled to one another.
    Type: Application
    Filed: July 18, 2016
    Publication date: March 30, 2017
    Inventor: Dirk Weichholdt
  • Patent number: 8973345
    Abstract: A drive arrangement for driving a first sickle bar section (42) and a second sickle bar section (36) of a harvesting platform (20) comprises a first gearbox (54) and the second gearbox (74) having an output drivingly connected to a respective first end of a respective sickle bar section (36, 42). Drive trains connect the first gearbox (54) and the second gearbox (74) to an input drive shaft (24). At least one of the drive trains comprises a belt drive. A synchronization transmission (82) is coupled to the second ends of the sickle bar sections (36, 42) and couples them in opposite movement directions.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: March 10, 2015
    Assignee: Deere & Company
    Inventors: Alex Brimeyer, Dirk Weichholdt, Luis L Losa, Friedrich Meyer-Hamme
  • Patent number: 8864561
    Abstract: The invention concerns a harvested crop residue chopper and distribution arrangement for a combine (10) with a straw chopper (60) with a rotor (74) that can be brought into rotation about a horizontal axis (98) with chopper blades (76) fastened thereto that define an outer envelope (96), and with at least one impeller blower (82) arranged downstream of the straw chopper (60) with impeller blades (84) that can rotate about an axis of rotation (88) that extends vertically, in which the impeller blades (84) are provided with outer edges (94) that conform to the envelope (96) of the chopper knives (76) and follow it very closely and are not in contact with it.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: October 21, 2014
    Assignee: Deere & Company
    Inventors: Dirk Weichholdt, Rico Priesnitz, Friedrich K Lauer, Oliver Klein, Chad Allen Dow, Joel David Ferris
  • Patent number: 8167691
    Abstract: In a crop residue chopping and distributing arrangement for a combine harvester (10) with a straw chopper (60) and two discharge blowers (100), a guide element (150) distributes the crop residue stream over the two discharge blowers (100) is arranged between said blowers. Passages (162) remain between the guide element (150) and the discharge blowers (100) such that the crop residues can be rearwardly discharged onto the field by the straw chopper (60) through said passages. Outer guide elements (141) are provided between the straw chopper (60) and the discharge blowers (100) in order to deflect the outer regions of the crop residue stream inward. The straw chopper housing (19) may feature a curved bottom (112) that axially conveys the crop residues to the discharge blowers (100) at an angle, wherein a flat crop residue guide element (112) is arranged between the straw chopper housing (90) and the discharge blowers (100).
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: May 1, 2012
    Assignee: Deere & Company
    Inventors: Norbert Pohlmann, Friedrich K Lauer, Dirk Weichholdt, Rico Priesnitz, Oliver Klein
  • Patent number: 8146336
    Abstract: A harvested crop residue chopper-and distribution arrangement for a combine (10) has a straw chopper (60) with an outlet (80) arranged in the plane of the outlet (96), with at least one impeller blower (82) arranged downstream of the outlet (80) of the straw chopper (60) with impeller blades (84) that can be rotated in the plane of the impeller blower (98) about an axis of rotation (88), where the plane of the impeller blower (98) may be inclined relative to the plane of the outlet (96). The impeller blades (84) may be connected with a central body (92) that is connected to a cone (94) facing the outlet (80) of the straw chopper (60).
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: April 3, 2012
    Assignee: Deere & Company
    Inventors: Dirk Weichholdt, Rico Priesnitz, Friedrich K Lauer, Oliver Klein, Chad Allen Dow, Joel David Ferris