Patents Assigned to Bomag GmbH
  • Patent number: 10018041
    Abstract: The invention relates to a tool device for a ground milling machine, particularly a road milling machine, a recycler, a stabilizer or a surface miner. The tool device comprises a milling chisel with a highly wear-resistant chisel tip, particularly comprising PCD material, and a chisel shaft extending along a longitudinal axis, and a chisel holder with a shaft receptacle, the chisel shaft of the milling chisel having at least one tapering section narrowing in a direction away from the chisel tip. Furthermore, a fastening device is provided, which is designed in such a way that it pulls the milling chisel along its longitudinal axis and in the direction away from the chisel tip into the shaft receptacle, the shaft receptacle of the chisel holder being designed complementary to the chisel shaft of the milling chisel in such a way that the tapering section, when braced by the fastening device, bears against the chisel holder in the shaft receptacle in a frictionally locking manner shaft receptacle.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: July 10, 2018
    Assignee: BOMAG GMBH
    Inventors: Steffen Wachsmann, Markus Schaefer
  • Patent number: 10000898
    Abstract: The present invention relates to a ground milling machine, particularly a road milling machine, comprising a machine frame supported by travelling devices, a drive engine and a milling device arranged in a milling drum box, the milling drum box comprising a stripping plate which is height-adjustable by means of at least a first and a second actuator. Further, the present invention relates to a method for adjusting a stripping plate of a milling drum box of a ground milling machine, particularly a road milling machine. For the purpose of a reliable adjustment of the stripping plate, the present invention proposes using a monitoring device for detecting the adjustment of a first actuator and a control device for controlling the adjustment of a second actuator depending on the adjustment of the first actuator.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: June 19, 2018
    Assignee: BOMAG GmbH
    Inventor: Steffen Wachsmann
  • Patent number: 10001783
    Abstract: The present invention relates to a method for controlling a work train including a self-propelled road paver and a self-propelled feeder travelling ahead of the road paver, to a work train comprising a self-propelled road paver and a self-propelled feeder, as well as to a feeder and to a road paver for such a work train. According to one aspect of the present invention, the control of the road paver is effected automatically, to which end particularly the position of the feeder is determined and travel commands for the road paver are generated based on this information.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: June 19, 2018
    Assignee: BOMAG GmbH
    Inventor: Thomas Zahr
  • Patent number: 10000897
    Abstract: The present invention relates to a device in a self-propelled construction machine with a first driving unit, which provides for a first speed of rotation (n1). By means of a planetary gear the first speed of rotation (n1) is translated into a different speed of rotation (n3) at which a working device of the construction machine, in particular a milling rotor for processing ground surfaces, can be operated.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: June 19, 2018
    Assignee: BOMAG GmbH
    Inventors: Marco Reuter, Rafael Schomaker, Manfred Hammes
  • Patent number: 9988771
    Abstract: A road finisher includes a screed plate extending at right angles to the working direction of the road finisher, a tamper bar disposed rearwardly and/or forwardly of the screed plate in the working direction, wherein at least one electrically operated heating element is configured to heat up a heating surface facing a road subsurface, the heating element comprising a heating layer at least partially obtained through thermal spraying onto a substrate surface, and a piston rod with connecting means to a tamper bar drive. The tamper bar is connected to the piston rod with an upper surface of the tamper bar contacting a lower surface of the piston rod, wherein the piston rod is single-pieced with regard to its connecting means and its lower surface, and the heating layer is located between the piston rod and the tamper bar, especially applied to the lower surface of the piston rod.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: June 5, 2018
    Assignee: BOMAG GMBH
    Inventor: Gianluca Caputo
  • Patent number: 9964130
    Abstract: The present invention relates to a method for operating a hydraulic system of a self-propelled road paver, in particular, for the supply of hydraulic oil as needed to a closed hydraulic circuit of the road paver, a hydraulic system of a road paver for performing the method and a road paver having such a hydraulic system. The extraction and/or return of the quantity of hydraulic oil occur depending on at least one operating parameter of the road paver.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: May 8, 2018
    Assignee: BOMAG GmbH
    Inventors: Moritz Nick, Hermann Christ
  • Patent number: 9963841
    Abstract: The present invention relates to a construction machine, in particular a ground milling machine, comprising transportation means connected to the machine frame via lifting columns. The lift adjustment of the lifting columns occurs as a function of the determined weight force values respectively applied to at least one actuator of a pair of front and/or rear and/or right and/or left transportation means. The present invention further relates to a method of optimum and practical weight distribution of the machine weight to the transportation devices for such a construction machine.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: May 8, 2018
    Assignee: BOMAG GmbH
    Inventors: Andreas Nacke, Marco Reuter, Andre Hoffmann
  • Patent number: 9951483
    Abstract: The present invention relates to a ground milling machine, in particular, a road cold milling machine, having a replaceable milling drum unit. To make this replacement procedure easier, the present invention proposes a fastening device between the milling part and the machine part of the ground milling machine. The present invention furthermore relates to a method for replacing a milling part on the ground milling machine, a fastening device being used for this purpose.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: April 24, 2018
    Assignee: BOMAG GmbH
    Inventors: Helmut Roetsch, Maximilian Philippsen, Steffen Wachsmann, Frank Rheinbay
  • Patent number: 9926674
    Abstract: The present invention relates to a method for controlling a construction machine which performs a working operation along a working trajectory on a ground depending on at least one operating parameter. A method according to the present invention comprises placing at least one mark, detectable by a sensor device, stationary on the ground in a region which, regarded from at least one position of the construction machine on the working trajectory, is located in the detection region of the sensor device. The mark is detected by the sensor device, resulting in the generation of sensor data which is processed by the data processing device of the construction machine. A control command is generated for the machine control of the construction machine for changing at least one operating parameter of the construction machine.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: March 27, 2018
    Assignee: BOMAG GmbH
    Inventor: Michele Orefice
  • Patent number: 9920492
    Abstract: The present invention relates to a ground milling machine, in particular, a road cold milling machine, having a replaceable milling drum unit. To make this replacement procedure easier, the present invention proposes a fastening device between the milling part and the machine part of the ground milling machine. The present invention furthermore relates to a method for replacing a milling part on the ground milling machine, a fastening device being used for this purpose.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: March 20, 2018
    Assignee: BOMAG GmbH
    Inventors: Helmut Roetsch, Maximilian Philippsen, Steffen Wachsmann, Frank Rheinbay
  • Patent number: 9863111
    Abstract: The present invention relates to a vibration tamper, comprising a superstructure having a driving engine mounted on a machine frame and further having a guide bar, and further comprising a substructure having a compactor base driven by the driving engine and having a compactor plate and having a drive line, by means of which a drive connection between the driving engine and the compactor base is established such that the compactor base can move relatively to the superstructure along a compactor axis while executing at least one compacting amplitude. The driving engine of the vibration tamper is a liquid gas powered driving engine, wherein the superstructure and, more particularly, the guide bar on the superstructure, comprises a storage container for liquid gas, and wherein a gas supply line is provided to supply evaporated liquid gas to the driving engine.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: January 9, 2018
    Assignee: BOMAG GmbH
    Inventors: Jost Becker, Albertus Krings
  • Patent number: 9863247
    Abstract: The present invention relates to a ground milling machine, in particular a road milling machine, a recycler, a stabilizer or a surface miner, comprising a milling drum with a milling drum width (a) extending along its rotational axis and with at least two chiseling devices, each of which comprises a chisel and a chisel holder, and a sensor device for determining wear on the at least two chiseling devices in a contactless manner, said sensor device comprising a sensor for measuring a wear parameter of the at least two chiseling devices, the sensor being movable at least over a part of the milling drum width (a) in order to set an identical measurement angle (?) and an identical position of the sensor relative to the at least two chiseling devices in order to measure the wear parameter of the at least two chiseling devices. The present invention further relates to a method for determining wear on the at least two chiseling devices of the ground milling machine in a contactless manner.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: January 9, 2018
    Assignee: BOMAG GmbH
    Inventors: Joern Von der Lippe, Matthias Schaaf
  • Patent number: 9864347
    Abstract: The present invention relates to a method for optimizing an operating function of a ground milling machine by way of the adaptation of operating parameters and to a ground milling machine which is implemented, in particular, for carrying out this method. In an essential aspect an operating parameter of a milling machine is provided starting from a starting value of the operating parameter to optimize an operating function of the ground milling machine in milling operation.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: January 9, 2018
    Assignee: BOMAG GmbH
    Inventors: Robert Laux, Marco Reuter
  • Patent number: 9863112
    Abstract: A method for operating an attachable compactor, an attachable compactor as well as an excavator with an attachable compactor. For a corresponding efficient operation in accordance with the present invention, a display indicates the end of a time interval (required compaction time) that depends on a measured contact force or a parameter corresponding to the contact force.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: January 9, 2018
    Assignee: BOMAG GmbH
    Inventor: Niels Laugwitz
  • Patent number: 9856611
    Abstract: The present invention relates to an apparatus for producing foamed bitumen for a road construction machine, comprising at least one mixing device having a reaction chamber, in which hot bitumen and at least one reaction fluid can be mixed together via an inlet device comprising at least one inlet nozzle and can be discharged from the mixing device via an outlet device, with at least one compressed-air device being provided, via which the inlet device and/or the outlet device can be subjected to a compressed-air stream for testing and/or cleaning purposes. The present invention further also relates to a method for maintaining such an apparatus.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: January 2, 2018
    Assignee: BOMAG GmbH
    Inventors: Juergen Heusinger, Andreas Nacke, Thorsten Jörig
  • Patent number: D806762
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: January 2, 2018
    Assignee: BOMAG GmbH
    Inventors: Roland Loew, Christian Berg, Thomas Klein, Tobias Schönberg
  • Patent number: D807406
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: January 9, 2018
    Assignee: BOMAG GmbH
    Inventors: Roland Loew, Christian Berg, Thomas Klein, Tobias Schönberg
  • Patent number: D810148
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: February 13, 2018
    Assignee: BOMAG GmbH
    Inventors: Roland Loew, Christian Berg, Thomas Klein, Tobias Schönberg
  • Patent number: D816574
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: May 1, 2018
    Assignee: BOMAG GmbH
    Inventors: Roland Loew, Christian Berg, Thomas Klein, Tobias Schönberg
  • Patent number: D819704
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: June 5, 2018
    Assignee: BOMAG GmbH
    Inventors: Roland Loew, Stephan Jakobs, Thomas Haubrich, Thomas Klein