Patents by Inventor Hardy Wilhelmi

Hardy Wilhelmi 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: 11859717
    Abstract: An earth working machine (10), encompassing a drive motor (42) and a working apparatus (22) drivable by the drive motor (42) so as to move rotationally, the drive motor (42) being connected to the working apparatus (22), for transfer of a torque, with interposition of a shiftable transmission (50; 150) comprising at least two gearing stages having different torque transfer ratios, is characterized in that by means of a first gearing stage of the shiftable transmission (50), an input shaft (48), coupled on the input side to the drive motor (42), of the shiftable transmission (50) is connectable in torque-transferring fashion directly to an output shaft (52), coupled on the output side to the working apparatus (22), of the shiftable transmission (50) so as to rotate together at the same rotation speed; and by means of a second gearing stage of the shiftable transmission (50), the input shaft (48) is connectable in torque-transferring fashion, with interposition of a transmission assemblage (64), to the output s
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: January 2, 2024
    Inventors: Christian Berning, Tobias Stinner, Cyrus Barimani, Hardy Wilhelmi
  • Publication number: 20230407580
    Abstract: An earth working machine encompasses a machine body having a machine frame and a drive configuration rotationally drivable relative to the machine frame around a drive axis (A). It further encompasses a working apparatus (32) for earth working to which the drive configuration is releasably connected in drive torque-transferring fashion for rotation together, the drive configuration projecting from an axial end axially into the working apparatus (32) and the working apparatus (32) being retained on the drive configuration, against axial displacement relative to the drive configuration, by an accessible central bolt arrangement having a bolt axis collinear with the drive axis (A).
    Type: Application
    Filed: June 26, 2023
    Publication date: December 21, 2023
    Inventors: Christian Berning, Karsten Buhr, Markus Frankemölle, Thomas Lehnert, Andreas Salz, Hardy Wilhelmi
  • Publication number: 20230323614
    Abstract: An earth working machine includes support structure and a working assembly mounted on the support structure so as to be rotatable about a drive axis. An assembly-side bearing configuration is connected to the working assembly and a structure-side bearing configuration is connected to the support structure. The assembly-side bearing configuration includes a driver configuration having a driver surface facing in a first circumferential direction and the structure-side bearing configuration includes a driver counterpart configuration having a driver counterpart surface facing in a second circumferential direction opposite to the first, the movement spaces of the driver surface and of the driver counterpart surface about the drive axis overlapping one another.
    Type: Application
    Filed: April 14, 2023
    Publication date: October 12, 2023
    Inventors: Hardy Wilhelmi, Karsten Buhr, Andreas Salz, Sascha Spöth
  • Patent number: 11725351
    Abstract: A bearing component for mounting a replaceable milling drum on an earth working machine includes an annular connecting flange having a central axis. A bearing stem protrudes from the connecting flange axially in a first direction to a first axial end, the bearing stem having an outer surface including at least first and second cylindrical bearing surfaces axially spaced from each other. The bearing stem further includes a centering recess open at a second axial end opposite the first axial end, the centering recess including an opening angle decreasing in steps so that the centering recess tapers in the first direction, the centering recess forming a portion of the central opening.
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: August 15, 2023
    Inventors: Christian Berning, Karsten Buhr, Markus Frankemölle, Thomas Lehnert, Andreas Salz, Hardy Wilhelmi
  • Patent number: 11655598
    Abstract: An earth working machine includes a support structure and a working assembly mounted on the support structure so as to be rotatable about a drive axis. An assembly-side bearing configuration is connected to the working assembly and a structure-side bearing configuration is connected to the support structure. The assembly-side bearing configuration includes a driver configuration having a driver surface facing in a first circumferential direction and the structure-side bearing configuration includes a driver counterpart configuration having a driver counterpart surface facing in a second circumferential direction opposite to the first, the movement spaces of the driver surface and of the driver counterpart surface about the drive axis overlapping one another.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: May 23, 2023
    Inventors: Hardy Wilhelmi, Karsten Buhr, Andreas Salz, Sascha Spöth
  • Publication number: 20220403931
    Abstract: An earth working machine (10), encompassing a drive motor (42) and a working apparatus (22) drivable by the drive motor (42) so as to move rotationally, the drive motor (42) being connected to the working apparatus (22), for transfer of a torque, with interposition of a shiftable transmission (50; 150) comprising at least two gearing stages having different torque transfer ratios, is characterized in that by means of a first gearing stage of the shiftable transmission (50), an input shaft (48), coupled on the input side to the drive motor (42), of the shiftable transmission (50) is connectable in torque-transferring fashion directly to an output shaft (52), coupled on the output side to the working apparatus (22), of the shiftable transmission (50) so as to rotate together at the same rotation speed; and by means of a second gearing stage of the shiftable transmission (50), the input shaft (48) is connectable in torque-transferring fashion, with interposition of a transmission assemblage (64), to the output s
    Type: Application
    Filed: May 25, 2022
    Publication date: December 22, 2022
    Inventors: Christian Berning, Tobias Stinner, Cyrus Barimani, Hardy Wilhelmi
  • Publication number: 20220389670
    Abstract: An earth working machine encompasses a machine body having a machine frame and a drive configuration rotationally drivable relative to the machine frame around a drive axis (A). It further encompasses a working apparatus (32) for earth working to which the drive configuration is releasably connected in drive torque-transferring fashion for rotation together, the drive configuration projecting from an axial end axially into the working apparatus (32) and the working apparatus (32) being retained on the drive configuration, against axial displacement relative to the drive configuration, by an accessible central bolt arrangement having a bolt axis collinear with the drive axis (A).
    Type: Application
    Filed: April 19, 2022
    Publication date: December 8, 2022
    Inventors: Christian Berning, Karsten Buhr, Markus Frankemölle, Thomas Lehnert, Andreas Salz, Hardy Wilhelmi
  • Patent number: 11346443
    Abstract: An earth working machine (10), encompassing a drive motor (42) and a working apparatus (22) drivable by the drive motor (42) so as to move rotationally, the drive motor (42) being connected to the working apparatus (22), for transfer of a torque, with interposition of a shiftable transmission (50; 150) comprising at least two gearing stages having different torque transfer ratios, is characterized in that by means of a first gearing stage of the shiftable transmission (50), an input shaft (48), coupled on the input side to the drive motor (42), of the shiftable transmission (50) is connectable in torque-transferring fashion directly to an output shaft (52), coupled on the output side to the working apparatus (22), of the shiftable transmission (50) so as to rotate together at the same rotation speed; and by means of a second gearing stage of the shiftable transmission (50), the input shaft (48) is connectable in torque-transferring fashion, with interposition of a transmission assemblage (64), to the output s
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: May 31, 2022
    Inventors: Christian Berning, Tobias Stinner, Cyrus Barimani, Hardy Wilhelmi
  • Patent number: 11313087
    Abstract: A replaceable milling drum for an earth working machine includes a milling drum tube and a protrusion structure fixed to the milling drum tube. A bearing stem protrudes from the protrusion structure axially away from a drive axial end of the milling drum tube. The bearing stem has an outer surface including at least first and second cylindrical bearing surfaces axially spaced from each other, a furthest one of the cylindrical bearing surfaces from the drive axial end having a smaller diameter than a next furthest one of the cylindrical bearing surfaces from the drive axial end, the bearing stem having a central opening therethrough co-axial with the drive axis.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: April 26, 2022
    Inventors: Christian Berning, Karsten Buhr, Markus Frankemölle, Thomas Lehnert, Andreas Salz, Hardy Wilhelmi
  • Publication number: 20210269994
    Abstract: The present invention relates to an earth working machine (10), comprising a support structure (30) and a working assembly (28) mounted on the support structure (30) so as to be rotatable about a drive axis (A), the working assembly (28) being rotatably supported by a first rotary bearing (57) and by a rotary bearing arrangement (77), the rotary bearing arrangement (77) comprising a second rotary bearing (76), an assembly-side bearing configuration (74a) connected to the working assembly (28) and a structure-side bearing configuration (86) connected to the support structure (30), both the assembly-side bearing configuration (74a) as well as the structure-side bearing configuration (86) being situated so as to be rotatable about the drive axis (A) relative to the second support structure area (30a) in the reference state, and both the assembly-side as well as the structure-side bearing configuration (74a, 86) being designed to be axially removable from one another and thereby separable from one another for mai
    Type: Application
    Filed: February 9, 2021
    Publication date: September 2, 2021
    Inventors: Hardy Wilhelmi, Karsten Buhr, Andreas Salz, Sascha Spöth
  • Publication number: 20200408300
    Abstract: An earth working machine (10), encompassing a drive motor (42) and a working apparatus (22) drivable by the drive motor (42) so as to move rotationally, the drive motor (42) being connected to the working apparatus (22), for transfer of a torque, with interposition of a shiftable transmission (50; 150) comprising at least two gearing stages having different torque transfer ratios, is characterized in that by means of a first gearing stage of the shiftable transmission (50), an input shaft (48), coupled on the input side to the drive motor (42), of the shiftable transmission (50) is connectable in torque-transferring fashion directly to an output shaft (52), coupled on the output side to the working apparatus (22), of the shiftable transmission (50) so as to rotate together at the same rotation speed; and by means of a second gearing stage of the shiftable transmission (50), the input shaft (48) is connectable in torque-transferring fashion, with interposition of a transmission assemblage (64), to the output s
    Type: Application
    Filed: July 14, 2020
    Publication date: December 31, 2020
    Inventors: Christian Berning, Tobias Stinner, Cyrus Barimani, Hardy Wilhelmi
  • Publication number: 20200407927
    Abstract: An earth working machine encompasses a machine body having a machine frame and a drive configuration rotationally drivable relative to the machine frame around a drive axis (A). It further encompasses a working apparatus (32) for earth working to which the drive configuration is releasably connected in drive torque-transferring fashion for rotation together, the drive configuration projecting from an axial end axially into the working apparatus (32) and the working apparatus (32) being retained on the drive configuration, against axial displacement relative to the drive configuration, by an accessible central bolt arrangement having a bolt axis collinear with the drive axis (A).
    Type: Application
    Filed: July 20, 2020
    Publication date: December 31, 2020
    Inventors: Christian Berning, Karsten Buhr, Markus Frankemölle, Thomas Lehnert, Andreas Salz, Hardy Wilhelmi
  • Patent number: 10815626
    Abstract: An earth working machine (10), for example a road milling machine (10), recycler, stabilizer, or surface miner, having a propelling unit (22) and a machine frame (12) carried by the propelling unit (22), comprises a working apparatus (32) for earth working. Provision is made that the earth working machine (10) comprises, on an underside (12a) of the machine frame (12) facing toward the supporting substrate of the machine (10), a maintenance door (52) that is movable between a raised operational readiness position and a lowered maintenance position and that comprises, on its inner side (52a) that faces away from the supporting substrate (U) in the operational readiness position, at least one functional configuration (56, 58) that assists a maintenance operation.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: October 27, 2020
    Assignee: Wirtgen GmbH
    Inventors: Christian Berning, Tobias Stinner, Hardy Wilhelmi, Cyrus Barimani
  • Patent number: 10724188
    Abstract: An earth working machine includes a drive configuration and a working apparatus releasably connected together by a bolt component. A bolting moment bracing arrangement is connected or connectable in bolting moment-transferring fashion to the bolt component, and includes a bracing region that is embodied for bolting moment-bracing abutment in a bracing bolting direction against a counterpart bracing region, the drive configuration being embodied to be driven to rotate, in a rotation direction codirectional with the bracing bolting direction, while the bracing region is in abutment against the counterpart bracing region.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: July 28, 2020
    Assignee: Wirtgen GmbH
    Inventors: Christian Berning, Karsten Buhr, Markus Frankemölle, Thomas Lehnert, Andreas Salz, Hardy Wilhelmi
  • Patent number: 10724187
    Abstract: An earth working machine (10) includes a machine body (13) having a machine frame (12) and a drive configuration (46), rotationally drivable relative to the machine frame (12), and to which configuration a working apparatus (32) embodied for earth working is releasably connected in torque-transferring fashion, in an operating position, for rotation together around a drive axis (A), such that when the connection is released, the working apparatus (32) is removable from the operating position in an axial direction relative to the drive configuration (46) for deinstallation from the drive configuration (46) and, for installation on the drive configuration (46), is conveyable into the operating position in an axial direction relative to the drive configuration (46), an actuator (65) being provided which is embodied to move the working apparatus (32) out of the operating position when the connection is released.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: July 28, 2020
    Assignee: Wirtgen GmbH
    Inventors: Christian Berning, Karsten Buhr, Markus Frankemölle, Thomas Lehnert, Andreas Salz, Hardy Wilhelmi
  • Patent number: 10724186
    Abstract: An earth working machine (10) includes a machine body (13) having a machine frame (12) and a drive configuration (46), rotationally drivable relative to the machine frame (12) around a drive axis (A), to which configuration a working apparatus (32) embodied for earth working is releasably connected in torque-transferring fashion, in an operating position operational for earth working, for rotation together around the drive axis (A), such that when the connection is released, the working apparatus (32) is removable from the operating position in an axial direction relative to the drive configuration (46) for deinstallation from the drive configuration (46) and, for installation on the drive configuration, is conveyable into the operating position in an axial direction relative to the drive configuration (46).
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: July 28, 2020
    Assignee: Wirtgen GmbH
    Inventors: Christian Berning, Karsten Buhr, Markus Frankemölle, Thomas Lehnert, Andreas Salz, Hardy Wilhelmi
  • Patent number: 10718431
    Abstract: An earth working machine (10), encompassing a drive motor (42) and a working apparatus (22) drivable by the drive motor (42) so as to move rotationally, the drive motor (42) being connected to the working apparatus (22), for transfer of a torque, with interposition of a shiftable transmission (50; 150) comprising at least two gearing stages having different torque transfer ratios, is characterized in that by means of a first gearing stage of the shiftable transmission (50), an input shaft (48), coupled on the input side to the drive motor (42), of the shiftable transmission (50) is connectable in torque-transferring fashion directly to an output shaft (52), coupled on the output side to the working apparatus (22), of the shiftable transmission (50) so as to rotate together at the same rotation speed; and by means of a second gearing stage of the shiftable transmission (50), the input shaft (48) is connectable in torque-transferring fashion, with interposition of a transmission assemblage (64), to the output s
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: July 21, 2020
    Assignee: Wirtgen GmbH
    Inventors: Christian Berning, Tobias Stinner, Cyrus Barimani, Hardy Wilhelmi
  • Patent number: 10562433
    Abstract: In a method for transporting a large milling machine self-propelled by ground-engaging units and comprising a machine frame adjustable in height by means of lifting devices using a tractor unit with a fifth-wheel coupling for a semi-trailer couplable behind the tractor unit as seen in the direction of travel, the following steps are specified: a.) positioning the machine frame of the large milling machine for coupling the large milling machine to the fifth-wheel coupling of the tractor unit or to a trailer using the ground-engaging units and/or the lifting devices of the large milling machine, b.) coupling and supporting the machine frame on the fifth-wheel coupling of the tractor unit or on the trailer, c.) repeating steps a) and b) to establish a mechanical connection between the tractor unit and the trailer by means of coupling the tractor unit and the trailer via the machine frame of the large milling machine, d.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: February 18, 2020
    Assignee: Wirtgen GmbH
    Inventors: Christian Berning, Christopher Mittelstaedt, Hardy Wilhelmi, Cyrus Barimani
  • Publication number: 20190248422
    Abstract: An earth working machine (10), for example a road milling machine (10), recycler, stabilizer, or surface miner, having a propelling unit (22) and a machine frame (12) carried by the propelling unit (22), comprises a working apparatus (32) for earth working. Provision is made that the earth working machine (10) comprises, on an underside (12a) of the machine frame (12) facing toward the supporting substrate of the machine (10), a maintenance door (52) that is movable between a raised operational readiness position and a lowered maintenance position and that comprises, on its inner side (52a) that faces away from the supporting substrate (U) in the operational readiness position, at least one functional configuration (56, 58) that assists a maintenance operation.
    Type: Application
    Filed: January 9, 2019
    Publication date: August 15, 2019
    Inventors: Christian Berning, Tobias Stinner, Hardy Wilhelmi, Cyrus Barimani
  • Patent number: D866618
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: November 12, 2019
    Assignee: Wirtgen GmbH
    Inventor: Hardy Wilhelmi