Patents by Inventor Bernd Holtmann

Bernd Holtmann 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).

  • Publication number: 20240081182
    Abstract: A threshing drum and a combine using a threshing drum are disclosed. The threshing drum comprising a drum body and beater bars. The beater bars each have a beating edge which describes a circumferential circle about a center axis of the drum body, on which the particular beating edge rotates about the center axis in a beating radius during operation of the threshing drum. To improve a flow of harvested material while the flow is being transferred from a threshing device to a downstream separating device, a cutting ring is positioned centrally on the drum body, viewed in the longitudinal direction of the drum body, which rotates in the circumferential direction of the drum body. The cutting ring has at least one circumferential cutting edge which describes a circumferential circle whose cutting radius, measured with respect to the center axis, is greater than the beating radii of the beating edges.
    Type: Application
    Filed: September 13, 2023
    Publication date: March 14, 2024
    Applicant: CLAAS Selbstfahrende Erntemaschinen GmbH
    Inventors: Jens Bußmann, Bernd Holtmann
  • Patent number: 11647694
    Abstract: A method for the operation of a combine harvester includes processing a harvested material flow by at least one axial separator and ejecting a residual material flow formed in this way from the combine harvester by at least two ejection devices. The axial separator is formed by a movable vane element by means of which the residual material flow exiting from the axial separator is distributed on a work member downstream of the axial separator. In order to further improve the distribution of the residual material flow on the field, an actual distribution of the residual material flow on the two ejection devices is detected, wherein, when a deviation of the actual distribution from a predetermined reference distribution is detected, the vane element is readjusted so that the actual distribution is at least approximated to the reference distribution.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: May 16, 2023
    Assignee: CLAAS Selbstfahrende Erntemaschinen GmbH
    Inventors: Jens Bussmann, Bernd Holtmann, Andreas Diekamp, Benedikt Poelling
  • Patent number: 11382274
    Abstract: A separator arrangement has an inlet head housing, a feed drum and two axial separating rotors projecting by one end portionwise into the inlet head housing. The inlet head housing has planar inlet portions which extend over the width of the respective axial separating rotor and between which is arranged a ramp-shaped housing portion extending paraxial to the conveying direction of the axial separating rotors and which assists in dividing a harvested material flow into partial flows to be fed to the axial separating rotors. At least one separating element is associated with the ramp-shaped housing portion and has a base body which extends perpendicular to the surface of the housing portion and which has an end face formed as a cutting edge. A coating comprising a wear-resistant second material is arranged on the end face and extends substantially medially in the longitudinal direction of the end face.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: July 12, 2022
    Assignee: CLAAS Selbstfahrende Erntemaschinen GmbH
    Inventors: Markus Pellmann, Jens Bussmann, Bernd Holtmann
  • Publication number: 20200337245
    Abstract: A separator arrangement has an inlet head housing, a feed drum and two axial separating rotors projecting by one end portionwise into the inlet head housing. The inlet head housing has planar inlet portions which extend over the width of the respective axial separating rotor and between which is arranged a ramp-shaped housing portion extending paraxial to the conveying direction of the axial separating rotors and which assists in dividing a harvested material flow into partial flows to be fed to the axial separating rotors. At least one separating element is associated with the ramp-shaped housing portion and has a base body which extends perpendicular to the surface of the housing portion and which has an end face formed as a cutting edge. A coating comprising a wear-resistant second material is arranged on the end face and extends substantially medially in the longitudinal direction of the end face.
    Type: Application
    Filed: February 7, 2020
    Publication date: October 29, 2020
    Applicant: CLAAS Selbstfahrende Erntemaschinen GmbH
    Inventors: Markus PELLMANN, Jens BUSSMANN, Bernd HOLTMANN
  • Publication number: 20200305352
    Abstract: A method for the operation of a combine harvester includes processing a harvested material flow by at least one axial separator and ejecting a residual material flow formed in this way from the combine harvester by at least two ejection devices. The axial separator is formed by a movable vane element by means of which the residual material flow exiting from the axial separator is distributed on a work member downstream of the axial separator. In order to further improve the distribution of the residual material flow on the field, an actual distribution of the residual material flow on the two ejection devices is detected, wherein, when a deviation of the actual distribution from a predetermined reference distribution is detected, the vane element is readjusted so that the actual distribution is at least approximated to the reference distribution.
    Type: Application
    Filed: January 16, 2020
    Publication date: October 1, 2020
    Applicant: CLAAS Selbstfahrende Erntemaschinen GmbH
    Inventors: Jens BUSSMANN, Bernd HOLTMANN, Andreas DIEKAMP, Benedikt POELLING
  • Patent number: 9706714
    Abstract: An inlet head housing for an axial separating device includes a pair of separating rotors arranged parallel to one another having a first end protruding, in sections, into the inlet head housing. The inlet head housing also includes flat inlet sections extending along a width of each of the respective separating rotors and a ramp-shaped housing section having a substantially concave profile is arranged between the flat inlet sections. The housing section at least partially supports a separation of a crop flow into two partial flows to the separating rotors and a substantially blade-shaped separating element is arranged on the ramp-shaped housing section and extends substantially axially parallel thereto.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: July 18, 2017
    Assignee: CLAAS Selbstfahrende Erntemaschinen GmbH
    Inventors: Jens Bussmann, Bernd Holtmann
  • Patent number: 9603302
    Abstract: An agricultural working machine has at least one working unit and a display device for displaying or adjusting parameters of the working machine the at least one working unit of both. The display device has a display unit with jointly depictable display elements for visualization of parameter-based values, the display elements preferably arranged concentrically in a form of circular-ring sections. The display device also includes at least one bar display that at least partially encircles the display elements radially on the outer side. Indicator element for displaying a defined value are disposed on the at least one bar display.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: March 28, 2017
    Assignee: CLAAS Selbstfahrende Erntemaschinen GmbH
    Inventors: Sebastian Neu, Michael Losch, Stefan Teroerde, Klaus Schaefer, Bernd Holtmann, Joachim Baumgarten, Markus Brune, Waldemar Thiesmann
  • Patent number: 9380745
    Abstract: A separating device formed with rotationally driven components and stationary components has at least one crop-treatment element for processing crop. The crop-treatment element extends transversely to the rotational direction (R) of the components, at least in sections. The crop-treatment element has a substantially cuboid cross-section and a front edge with a curved course optimized in terms of flow, and which faces a rotational direction (R) and away from a conveyance direction (FR) of the crop.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: July 5, 2016
    Assignee: CLAAS Selbstfahrende Erntemaschinen GmbH
    Inventors: Bernd Holtmann, Markus Pellmann
  • Publication number: 20160007536
    Abstract: An inlet head housing for an axial separating device formed with a pair of separating rotors. The separating rotors are arranged parallel to one another having a first end protruding, in sections, into the inlet head housing. The inlet head housing has flat inlet sections extending along a width of each of the respective separating rotors. A ramp-shaped housing section having a substantially concave profile is arranged between the fiat inlet sections. The housing section at least partially supports a separation of a crop flow into two partial flows to the separating rotors. A substantially blade-shaped separating element is arranged on the ramp-shaped housing section and extends substantially axially parallel thereto.
    Type: Application
    Filed: July 8, 2015
    Publication date: January 14, 2016
    Inventors: JENS BUSSMANN, BERND HOLTMANN
  • Patent number: 9155249
    Abstract: A combine harvester operates with an axial separating device for separating a crop flow picked up by the combine harvester into a plurality of partial flows. A partial flow composed of grain and non-grain components is fed by a separation surface of the axial separating device to a cleaning unit disposed downstream. The axial separating device is configured to manipulate a local concentration gradient of the partial flow that is output by the axial separating device caused by a tilt of the combine harvester. The extent of the manipulation is controlled individually depending on the tilt of the combine harvester.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: October 13, 2015
    Assignee: CLAAS Selbstfahrende Erntemaschinen GmbH
    Inventors: Joachim Baumgarten, Andreas Diekamp, Bernd Holtmann, Rainer Bellmann, Christoph Heitmann, Axel Schroeder
  • Patent number: 9149001
    Abstract: A threshing mechanism is formed with a first threshing drum and a second threshing drum disposed one behind the other in a direction of crop flow. A first concave encloses the first threshing drum and the second threshing drum in sections in a circumferential direction. A second concave encloses the second threshing drum in sections in the circumferential direction. The concaves are displaceable in a radial direction of the threshing drums and are formed with at least one crop-processing device disposed at the first concave. The first concave and the second concave are swivellable about a common axis connecting the concaves. The enclosure of the second threshing drum by the first concave and the second concave is approximately identical.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: October 6, 2015
    Assignee: CLAAS Selbstfahrende Erntemaschinen GmbH
    Inventors: Bernd Holtmann, Dirk Esken, Manfred Krieft, Franz Buddenkotte, Ralf Bussmann
  • Patent number: 9043959
    Abstract: A combine harvester includes a separating device that extends in a longitudinal direction of the combine harvester. In front of the separating device, a tangentially disposed feed drum is installed. The feed drum is configured with substantially axially parallel guide plates on a circumference thereof. The substantially axially parallel guide plates bear against the jacket surface of the feed drum via support elements. The support elements extend between adjacent guide plates in the circumferential direction and, extend between the adjacent guide plates in the radial direction across an entire free jacket surface of the feed drum.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: June 2, 2015
    Assignee: CLAAS Selbstfahrende Erntemaschinen GmbH
    Inventors: Dirk Esken, Bernd Holtmann, Martin Niermann
  • Publication number: 20150087363
    Abstract: A separating device formed with rotationally driven components and stationary components has at least one crop-treatment element for processing crop. The crop-treatment element extends transversely to the rotational direction (R) of the components, at least in sections. The crop-treatment element has a substantially cuboid cross-section and a front edge with a curved course optimized in terms of flow, and which faces a rotational direction (R) and away from a conveyance direction (FR) of the crop.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 26, 2015
    Inventors: BERND HOLTMANN, MARKUS PELLMANN
  • Publication number: 20150088386
    Abstract: An agricultural working machine has at least one working unit and a display device for displaying or adjusting parameters of the working machine the at least one working unit of both. The display device has a display unit with jointly depictable display elements for visualization of parameter-based values, the display elements preferably arranged concentrically in a form of circular-ring sections. The display device also includes at least one bar display that at least partially encircles the display elements radially on the outer side. Indicator element for displaying a defined value are disposed on the at least one bar display.
    Type: Application
    Filed: September 23, 2014
    Publication date: March 26, 2015
    Inventors: Sebastian Neu, Michael Losch, Stefan Teroerde, Klaus Schaefer, Bernd Holtmann, Joachim Baumgarten, Markus Brune, Waldemar Thiesmann
  • Publication number: 20140194170
    Abstract: A threshing mechanism is formed with a first threshing drum and a second threshing drum disposed one behind the other in a direction of crop flow. A first concave encloses the first threshing drum and the second threshing drum in sections in a circumferential direction. A second concave encloses the second threshing drum in sections in the circumferential direction. The concaves are displaceable in a radial direction of the threshing drums and are formed with at least one crop-processing device disposed at the first concave. The first concave and the second concave are swivellable about a common axis connecting the concaves. The enclosure of the second threshing drum by the first concave and the second concave is approximately identical.
    Type: Application
    Filed: January 6, 2014
    Publication date: July 10, 2014
    Applicant: CLAAS SELBSTFAHRENDE ERNTEMASCHINEN GMBH
    Inventors: Bernd Holtmann, Dirk Esken, Manfred Krieft, Franz Buddenkotte, Ralf Bussmann
  • Publication number: 20140011554
    Abstract: A combine harvester includes a separating device that extends in a longitudinal direction of the combine harvester. In front of the separating device, a tangentially disposed feed drum is installed. The feed drum is configured with substantially axially parallel guide plates on a circumference thereof. The substantially axially parallel guide plates bear against the jacket surface of the feed drum via support elements. The support elements extend between adjacent guide plates in the circumferential direction and, extend between the adjacent guide plates in the radial direction across an entire free jacket surface of the feed drum.
    Type: Application
    Filed: June 18, 2013
    Publication date: January 9, 2014
    Inventors: Dirk Esken, Bernd Holtmann, Martin Niermann
  • Publication number: 20120322521
    Abstract: A combine harvester operates with an axial separating device for separating a crop flow picked up by the combine harvester into a plurality of partial flows. A partial flow composed of grain and non-grain components is fed by a separation surface of the axial separating device to a cleaning unit disposed downstream. The axial separating device is configured to manipulate a local concentration gradient of the partial flow that is output by the axial separating device caused by a tilt of the combine harvester. The extent of the manipulation is controlled individually depending on the tilt of the combine harvester.
    Type: Application
    Filed: June 18, 2012
    Publication date: December 20, 2012
    Inventors: JOACHIM BAUMGARTEN, ANDREAS DIEKAMP, BERND HOLTMANN, RAINER BELLMANN, CHRISTOPH HEITMANN, AXEL SCHROEDER
  • Patent number: 7833091
    Abstract: A combine harvester has at least one cleaning device which includes at least one sieve and one cleaning fan, at least one conveyor device for conveying at least a portion of the crop material that exits the cleaning device into a higher region of the combine harvester and including at least one elevator having a lower intake region and an upper transfer region, the crop material being conveyed in the elevator via conveyor plates which are situated on a circulating chain, and the elevator includes, in its lower region, at least two interspaced deflection axles for the circulating chain, which are oriented transversely to the longitudinal extension of the combine harvester.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: November 16, 2010
    Assignee: CLAAS Selbstfahrende Erntemaschinen GmbH
    Inventors: Bernd Holtmann, Stefan Teroerde, Winfried Wesselmann, Ingo Boenig, Christopher Vieregge, Daniel Brueggemann, Hubert Korte, Ulrich Claes, Waldemar Schulz
  • Publication number: 20090280877
    Abstract: A combine harvester has at least one cleaning device which includes at least one sieve and one cleaning fan, at least one conveyor device for conveying at least a portion of the crop material that exits the cleaning device into a higher region of the combine harvester and including at least one elevator having a lower intake region and an upper transfer region, the crop material being conveyed in the elevator via conveyor plates which are situated on a circulating chain, and the elevator includes, in its lower region, at least two interspaced deflection axles for the circulating chain, which are oriented transversely to the longitudinal extension of the combine harvester.
    Type: Application
    Filed: May 6, 2009
    Publication date: November 12, 2009
    Inventors: Bernd Holtmann, Stefan Teroerde, Winfried Wesselmann, Ingo Boenig, Christopher Vieregge, Daniel Brueggemann, Hubert Korte, Ulrich Claes, Waldemar Schulz
  • Patent number: 7200981
    Abstract: A supporting arrangement for an agricultural working machine with at least one receiving device for receiving an agricultural working device has at least one support wheel arrangeable in a region facing the agricultural working device, the at least one support wheel being arranged forwardly of the at least one land wheel of an axle of the agricultural working machine as considered in a traveling direction, and a common envelope structure surrounding the at least one support wheel and the at least one land wheel located after the at least one support wheel as considered in the traveling direction.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: April 10, 2007
    Assignee: CLAAS Selbstfahrende Erntemaschinen GmbH
    Inventors: Franz Heidjann, Bernd Holtmann