Patents Assigned to Hamm AG
  • Patent number: 10508391
    Abstract: A construction machine includes a system area rotatable about an axis of rotation with respect to a machine frame. On the rotatable system area is at least one sensor, a data transmission unit with at least one transmission antenna, and a first data transmission arrangement for transmitting data from the at least one sensor to the data transmission unit. On the machine frame is a data receiving unit with at least one receiving antenna, a data evaluation system, and a second data transmission arrangement for transmitting data from the data receiving unit to the data evaluation system. The data transmission unit has at least two transmission antennas and/or the data receiving unit has at least two receiving antennas.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: December 17, 2019
    Assignee: Hamm AG
    Inventors: Werner Völkel, Christian Eichhorn
  • Patent number: 10501903
    Abstract: A compactor roller includes a roller jacket, at least one roller disk connected to the roller jacket, and a reinforcing arrangement with a reinforcing ring connected to the roller jacket and a reinforcing structural group connected to the roller disk and the reinforcing ring, the reinforcing structural group including: (i) at least one first reinforcing plate arranged eccentrically and connected to the roller disk and to the reinforcing ring, and a second reinforcing plate connected to the roller disk and arranged substantially parallel to the at least one first reinforcing plate, the second reinforcing plate intersecting a rotary roller axis, or (ii) reinforcing struts connected to the roller disk and to the reinforcing ring and arranged around the rotary roller axis, at least one of the reinforcing struts arranged with a longitudinal strut axis which is not parallel to the rotary roller axis.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: December 10, 2019
    Assignee: Hamm AG
    Inventors: Peter Janner, Axel Römer
  • Patent number: 10501904
    Abstract: A compacting roll for a soil compactor includes a roll shell concentrically surrounding a roll rotational axis, a roll inner space and two oscillatory arrangements, at least partially arranged within the roll inner space, for generating the oscillating torque impinging on the roll shell with respect to the roll rotational axis, whereat each oscillatory arrangement includes at least two oscillation mass units that are rotatable around the respective oscillation rotational axis and at least one oscillation drive motor to serve exclusively for driving the oscillation mass units of this oscillatory arrangement. The oscillation mass units of different oscillatory arrangements can be offset from each other in the direction of the roll rotation axis.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: December 10, 2019
    Assignee: Hamm AG
    Inventor: Franz Meixner
  • Patent number: 10443201
    Abstract: A soil compactor is described. The soil compactor includes at least two vibrating compacting rollers rotatable about a respective roller axis of rotation. The soil compactor further includes a vibration excitation arrangement assigned to each vibrating compacting roller of the at least two vibrating compacting rollers for generating a vibrating movement of the at least two vibrating compacting rollers. The soil compactor also includes a sensor arrangement assigned to the soil compactor for providing a feedback signal indicative of sound or a structural vibration of the soil compactor. The soil compactor yet further includes a control unit receiving the feedback signal for controlling at least one vibration excitation arrangement, based on the feedback signal, such as to act on a phase offset of the vibrating movements of the at least two vibrating compacting rollers with respect to one another.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: October 15, 2019
    Assignee: Hamm AG
    Inventors: Klaus Meindl, Hans-Peter Patzner, Axel Römer
  • Patent number: 10435852
    Abstract: A method for determining the compaction state of a subgrade to be compacted using a roller compactor comprising at least one compactor drum having an oscillation-inducing arrangement and rotatable about a drum axis of rotation comprising the following steps: during at least one period of oscillating movement of the compactor drum, repeatedly determining the acceleration of the compactor drum in an first direction, representing a first acceleration value; in association with each first acceleration value, determining an acceleration of the compactor drum in a second direction representing a second acceleration value in order to provide acceleration value pairs, each consisting of a first acceleration value and a second associated acceleration value; and for at least one oscillation period, defining a compaction state value representing the compaction state of the subgrade based upon the period of oscillation determined for said acceleration value pairs.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: October 8, 2019
    Assignee: Hamm AG
    Inventors: Johannes Pistrol, Fritz Kopf, Werner Völkel, Sebastian Villwock
  • Patent number: 10338095
    Abstract: A method is provided for the correction of a measured value curve by eliminating periodically occurring measurement artifacts. The method includes steps of provision of a measured value curve representing a periodically repeating event, division of the measured value curve into period-measured value curves allocated to a plurality of successive periods of the periodically repeating event, based on the period-measured value curves allocated to the plurality of periods, determination of a mean period-measured value curve, formation of a difference between the period-measured value curves allocated to the plurality of periods, and the mean period-measured value curve for the provision of the difference-period-measured value curves allocated in each case to the periods, and based on the difference-period-measured value curves, determination of a corrected measured value curve for the plurality of successive periods of the periodically repeating event.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: July 2, 2019
    Assignee: Hamm AG
    Inventors: Johannes Pistrol, Fritz Kopf, Werner Völkel, Sebastian Villwock
  • Patent number: 10214087
    Abstract: A ground processing machine includes a rear carriage with an internal combustion engine, respectively at least one drive wheel to both sides of the internal combustion engine, a driver cabin arranged offset relative to the internal combustion engine in the longitudinal direction of the machine, a fuel tank for fuel to be supplied to the internal combustion engine, an additive substance tank, and a hydraulic fluid tank. The additive substance tank is arranged following a drive wheel in the longitudinal machine direction, and next to the drive wheel in a transversal machine direction.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: February 26, 2019
    Assignee: Hamm AG
    Inventors: Thomas Bletscher, Gerd Koestler, Martin Fischer, Michael Zimmerer, Thomas Bauer
  • Patent number: 10214865
    Abstract: An earth working roller for use in an earth working machine includes a roller drum, which extends in a direction along a roller axis of rotation, surrounds a roller interior, and has a circular outer circumferential contour, wherein a substrate breaking configuration is provided on the outer circumferential surface of the roller drum. The substrate breaking configuration includes a plurality of impact bars along the roller drum in the direction of the roller drum axis of rotation, as well as a plurality of breaker bars along the roller drum in a circumferential direction.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: February 26, 2019
    Assignee: Hamm AG
    Inventors: Matthias Meier, Reiner Bartsch
  • Publication number: 20180320800
    Abstract: A fastening device for hoses including two fastening parts two fastening parts adapted to be joined with each other and each having at least one recess which, in the joined state of the fastening parts, form at least one passage for at least one hose. The fastening parts are each formed by a fastening body with an elastic fastening component, wherein the fastening body has a lower elasticity than the elastic fastening component. The elastic fastening component respectively forms a recess surface in the recess. The elastic fastening component is molded to the fastening body to form a chemical bond with the same.
    Type: Application
    Filed: May 3, 2018
    Publication date: November 8, 2018
    Applicant: Hamm AG
    Inventors: Ronny PIESKE, Holger WOLFRUM
  • Patent number: 10059184
    Abstract: A drive system, in particular for a self-propelled construction machine, in particular a soil compactor, comprising an internal combustion engine comprising a drive unit, at least one hydraulic circuit with a hydraulic pump that can be driven by the drive unit, as well as a hydraulic-drive support unit with a hydraulic pump/motor assembly and at least one pressure fluid reservoir, wherein the hydraulic pump/motor assembly is or can be drivingly coupled with the drive unit or/and at least one hydraulic circuit, wherein the hydraulic pump/motor assembly can be operated in a charging operating mode by the drive unit or/and at least one hydraulic circuit as a pump to charge at least one pressure fluid reservoir and be operated in an drive support operating mode as a motor to provide a drive support torque for the hydraulic pump of at least one hydraulic circuit, characterized in that the hydraulic pump/motor assembly can be operated in a recirculation operating mode as a motor to start the drive unit.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: August 28, 2018
    Assignee: HAMM AG
    Inventors: Andreas Röhr, Thomas Henker, Ronny Pieske
  • Patent number: 10024003
    Abstract: A soil compactor, including at least one compactor roller, which is free to rotate about an axis of rotation of the roller, with a plurality of roller segments, which follow one another along the direction of the axis of rotation of the roller, wherein, in each case, at least one electromotive drive for producing an oscillating torque is assigned to each roller segment.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: July 17, 2018
    Assignee: Hamm AG
    Inventors: Sebastian Villwock, Werner Völkel
  • Patent number: 10011191
    Abstract: In a seat for a construction machine, comprising a seat console, a device for lateral displacement of the seat in a transverse direction relative to the direction of travel of the construction machine, and a seat rotating device, it is provided that a stop limiter device is operative to limit the maximum allowable rotational angle of the seat in a variable manner, each time in dependence on the set position of the lateral displacement of the seat.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: July 3, 2018
    Assignee: Hamm AG
    Inventors: Gernot Reif, Jürgen Hopf, Thomas Göhl
  • Patent number: 10006175
    Abstract: A soil compactor comprises at least one compacting roller (18, 22) rotatable about an axis of rotation, a temperature detecting device (42) for providing temperature information representing a temperature of a substrate (U1, U2, U3) in the area of the soil compactor (10), a sprinkling device (24, 28) assigned to at least one compacting roller (18, 22) for sprinkling this compacting roller (18, 22) with fluid, and a control device (40) for controlling at least one sprinkling device (24, 28) and/or for generating a sprinkling indicator on the basis of the temperature information.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: June 26, 2018
    Assignee: Hamm AG
    Inventors: Detlef Bornemann, Klaus Meindl
  • Patent number: 9995007
    Abstract: A drive system, in particular for a self-propelled construction machine, in particular a soil compactor, comprises a drive unit, at least one hydraulic circuit with a hydraulic pump driven by the drive unit, a hydraulic drive support unit with a hydraulic pump/motor assembly, and at least one pressure fluid reservoir, wherein the hydraulic pump/motor assembly is, or can be, drivingly coupled with the drive unit and/or at least one hydraulic circuit, wherein the hydraulic pump/motor assembly can be operated in a charging operating mode by the drive unit and/or at least one hydraulic circuit as a pump to charge at least one pressure fluid reservoir, and be driven in a drive support operating mode as a motor to provide a drive support torque for the hydraulic pump of at least one hydraulic circuit, characterized in that the hydraulic pump/motor assembly is operated in a recirculation operating mode as a pump to convey fluid out of a fluid reservoir and into a fluid reservoir.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: June 12, 2018
    Assignee: Hamm AG
    Inventors: Andreas Röhr, Thomas Henker, Ronny Pieske
  • Patent number: 9982397
    Abstract: A method for planning and implementation of soil compacting processes using at least one soil compactor resulting in an efficient use of compactors and an improved compacting result. Under the method, a base region (B) to be compacted is defined, the relevant aspects of a soil compacting process are planned, and only then is the process implemented by moving at least compactor in the base region (B), according to the plan. The plan for the soil compacting process may include the quantity and course of compactor passes in the base region.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: May 29, 2018
    Assignee: HAMM AG
    Inventors: Christoph Korb, Matthias Meier
  • Patent number: 9915040
    Abstract: Soil compactor including a compaction drum rotatably supported by a compaction roller frame, wherein the compaction drum frame comprises two longitudinal members arranged in a direction longitudinal to the compactor on both sides of the compaction roller and supporting said compaction roller, and, connecting the two longitudinal members together, two cross members arranged in a direction perpendicular to the compactor and along both sides of the compaction roller, wherein the compaction roller frame is connected to a compactor main frame via one of the two cross members, and wherein at least one sight opening is provided within the other of the two cross members.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: March 13, 2018
    Assignee: Hamm AG
    Inventors: Thomas Bletscher, Gerd Köstler, Axel Römer
  • Patent number: 9869601
    Abstract: A device for detecting the motion of a rotatable compactor roller about a compactor roller axis of rotation includes at least one motion sensor and an energy supply for the at least one motion sensor. The energy supply includes a generator having a stator and a rotor rotatable about a rotor axis of rotation with respect to the stator.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: January 16, 2018
    Assignee: Hamm AG
    Inventor: Werner Völkel
  • Patent number: 9822736
    Abstract: A self-propelled construction device, in particular a soil compactor, includes a turbocharged diesel engine with a first radiator arrangement for cooling charge air and a second radiator arrangement for cooling a cooling liquid and/or hydraulic oil, with a first radiator fan being allocated to the first radiator arrangement and a second radiator fan being allocated to the second radiator arrangement and the first radiator fan and the second radiator fan being able to be operated essentially independently from each other.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: November 21, 2017
    Assignee: HAMM AG
    Inventors: Andreas Roehr, Thomas Bletscher, Michael Zimmerer
  • Patent number: D799559
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: October 10, 2017
    Assignee: HAMM AG
    Inventor: Julius Renz
  • Patent number: D819088
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: May 29, 2018
    Assignee: HAMM AG
    Inventor: Julius Renz