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).
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Publication number: 20240081182Abstract: 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: ApplicationFiled: September 13, 2023Publication date: March 14, 2024Applicant: CLAAS Selbstfahrende Erntemaschinen GmbHInventors: Jens Bußmann, Bernd Holtmann
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Patent number: 11647694Abstract: 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: GrantFiled: January 16, 2020Date of Patent: May 16, 2023Assignee: CLAAS Selbstfahrende Erntemaschinen GmbHInventors: Jens Bussmann, Bernd Holtmann, Andreas Diekamp, Benedikt Poelling
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Patent number: 11382274Abstract: 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: GrantFiled: February 7, 2020Date of Patent: July 12, 2022Assignee: CLAAS Selbstfahrende Erntemaschinen GmbHInventors: Markus Pellmann, Jens Bussmann, Bernd Holtmann
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Publication number: 20200337245Abstract: 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: ApplicationFiled: February 7, 2020Publication date: October 29, 2020Applicant: CLAAS Selbstfahrende Erntemaschinen GmbHInventors: Markus PELLMANN, Jens BUSSMANN, Bernd HOLTMANN
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Publication number: 20200305352Abstract: 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: ApplicationFiled: January 16, 2020Publication date: October 1, 2020Applicant: CLAAS Selbstfahrende Erntemaschinen GmbHInventors: Jens BUSSMANN, Bernd HOLTMANN, Andreas DIEKAMP, Benedikt POELLING
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Patent number: 9706714Abstract: 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: GrantFiled: July 8, 2015Date of Patent: July 18, 2017Assignee: CLAAS Selbstfahrende Erntemaschinen GmbHInventors: Jens Bussmann, Bernd Holtmann
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Patent number: 9603302Abstract: 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: GrantFiled: September 23, 2014Date of Patent: March 28, 2017Assignee: CLAAS Selbstfahrende Erntemaschinen GmbHInventors: Sebastian Neu, Michael Losch, Stefan Teroerde, Klaus Schaefer, Bernd Holtmann, Joachim Baumgarten, Markus Brune, Waldemar Thiesmann
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Patent number: 9380745Abstract: 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: GrantFiled: September 15, 2014Date of Patent: July 5, 2016Assignee: CLAAS Selbstfahrende Erntemaschinen GmbHInventors: Bernd Holtmann, Markus Pellmann
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Publication number: 20160007536Abstract: 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: ApplicationFiled: July 8, 2015Publication date: January 14, 2016Inventors: JENS BUSSMANN, BERND HOLTMANN
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Combine harvester comprising an axial separating device and method for operating a combine harvester
Patent number: 9155249Abstract: 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: GrantFiled: June 18, 2012Date of Patent: October 13, 2015Assignee: CLAAS Selbstfahrende Erntemaschinen GmbHInventors: Joachim Baumgarten, Andreas Diekamp, Bernd Holtmann, Rainer Bellmann, Christoph Heitmann, Axel Schroeder -
Patent number: 9149001Abstract: 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: GrantFiled: January 6, 2014Date of Patent: October 6, 2015Assignee: CLAAS Selbstfahrende Erntemaschinen GmbHInventors: Bernd Holtmann, Dirk Esken, Manfred Krieft, Franz Buddenkotte, Ralf Bussmann
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Patent number: 9043959Abstract: 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: GrantFiled: June 18, 2013Date of Patent: June 2, 2015Assignee: CLAAS Selbstfahrende Erntemaschinen GmbHInventors: Dirk Esken, Bernd Holtmann, Martin Niermann
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Publication number: 20150087363Abstract: 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: ApplicationFiled: September 15, 2014Publication date: March 26, 2015Inventors: BERND HOLTMANN, MARKUS PELLMANN
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Publication number: 20150088386Abstract: 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: ApplicationFiled: September 23, 2014Publication date: March 26, 2015Inventors: Sebastian Neu, Michael Losch, Stefan Teroerde, Klaus Schaefer, Bernd Holtmann, Joachim Baumgarten, Markus Brune, Waldemar Thiesmann
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Publication number: 20140194170Abstract: 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: ApplicationFiled: January 6, 2014Publication date: July 10, 2014Applicant: CLAAS SELBSTFAHRENDE ERNTEMASCHINEN GMBHInventors: Bernd Holtmann, Dirk Esken, Manfred Krieft, Franz Buddenkotte, Ralf Bussmann
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Publication number: 20140011554Abstract: 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: ApplicationFiled: June 18, 2013Publication date: January 9, 2014Inventors: Dirk Esken, Bernd Holtmann, Martin Niermann
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Combine harvester comprising an axial separating device and method for operating a combine harvester
Publication number: 20120322521Abstract: 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: ApplicationFiled: June 18, 2012Publication date: December 20, 2012Inventors: JOACHIM BAUMGARTEN, ANDREAS DIEKAMP, BERND HOLTMANN, RAINER BELLMANN, CHRISTOPH HEITMANN, AXEL SCHROEDER -
Patent number: 7833091Abstract: 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: GrantFiled: May 6, 2009Date of Patent: November 16, 2010Assignee: CLAAS Selbstfahrende Erntemaschinen GmbHInventors: Bernd Holtmann, Stefan Teroerde, Winfried Wesselmann, Ingo Boenig, Christopher Vieregge, Daniel Brueggemann, Hubert Korte, Ulrich Claes, Waldemar Schulz
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Publication number: 20090280877Abstract: 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: ApplicationFiled: May 6, 2009Publication date: November 12, 2009Inventors: Bernd Holtmann, Stefan Teroerde, Winfried Wesselmann, Ingo Boenig, Christopher Vieregge, Daniel Brueggemann, Hubert Korte, Ulrich Claes, Waldemar Schulz
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Patent number: 7200981Abstract: 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: GrantFiled: June 12, 2002Date of Patent: April 10, 2007Assignee: CLAAS Selbstfahrende Erntemaschinen GmbHInventors: Franz Heidjann, Bernd Holtmann