Patents by Inventor Guenter Hahn

Guenter Hahn 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: 20130309009
    Abstract: In a ground working machine (1) for milling soils (2) or traffic areas, it is provided that a controller (18) for terminating the milling process controls the milling depth of the milling device (8) along a specified trajectory (24) in conjunction with simultaneous forward and reverse travel (5,7), thus enabling the milling device (8) to be raised into the upper position (9) disengaged from the ground without a depression (22) resulting from raising the milling device (8) remaining in the worked ground surface (3).
    Type: Application
    Filed: June 12, 2013
    Publication date: November 21, 2013
    Applicant: Wirtgen GmbH
    Inventors: Christoph Menzenbach, Harald Kroell, Cyrus Barimani, Günter Hähn
  • Publication number: 20130292991
    Abstract: The invention relates to an ejector unit, in particular for a road milling machine, having an ejector that is replaceably mounted on a carrier. In one aspect the ejector is curved in a scoop-like fashion. In another aspect the ejector is reversible upon the carrier to allow the ejector to be reversed after one wear surface is worn, thus presenting a new second wear surface.
    Type: Application
    Filed: June 19, 2013
    Publication date: November 7, 2013
    Inventors: Karsten Buhr, Stefan Abresch, Thomas Lehnert, Günter Hähn, Cyrus Barimani
  • Publication number: 20130294830
    Abstract: A control and switchover system is provided for controlling milling depth and/or slope of a milling drum of a road construction machine during a milling operation to create a milled surface. The system controls the milling depth and/or slope at least in part on a measurement made with a first sensor. Without interrupting the milling operation the system switches over the control of the milling depth and/or slope to control based at least in part on a measurement made with a second sensor.
    Type: Application
    Filed: July 3, 2013
    Publication date: November 7, 2013
    Inventors: Jaroslaw Jurasz, Günter Hähn, Günter Tewes
  • Publication number: 20130277076
    Abstract: The invention relates to an edge guard for a road milling machine and to a runner segment for such an edge guard. According to the present invention, the runner segment comprises an insertion projection that can be inserted into an insertion receptacle of the edge guard.
    Type: Application
    Filed: March 11, 2013
    Publication date: October 24, 2013
    Applicant: WIRTGEN GMBH
    Inventors: Herbert Ley, Philip Verhaelen, Cyrus Barimani, Günter Hähn
  • Publication number: 20130270891
    Abstract: The subject matter of the invention is a bit holder for an earth working machine, in particular a road milling machine, having a support member onto which an insertion projection is indirectly or directly attached on an insertion projection side, the insertion projection comprising at least one convex abutment surface and one pressure surface. In a bit holder of this kind, working forces can be dissipated in stress-optimized fashion into an attached base part when provision is made that the insertion projection comprises two convex abutment surfaces that are arranged at a distance from one another.
    Type: Application
    Filed: December 2, 2011
    Publication date: October 17, 2013
    Applicant: WIRTGEN GMBH
    Inventors: Thomas Lehnert, Karsten Buhr, Martin Lenz, Cyrus Barimani, Günter Hähn
  • Publication number: 20130241266
    Abstract: The invention relates to a bit holder for an earth working machine, in particular a road milling machine, having a support member onto which an insertion projection is indirectly or directly attached on an insertion projection side, the support member comprising two first and/or two second stripping surfaces that are at an angle to one another, and the support member having a working side that comprises a bit receptacle. In order to achieve a stable and long-lived configuration for such a bit holder, provision is made according to the present invention that the first and/or second stripping surfaces diverge from the insertion projection side toward the working side.
    Type: Application
    Filed: December 2, 2011
    Publication date: September 19, 2013
    Applicant: WIRTGEN GmbH
    Inventors: Thomas Lehnert, Karsten Buhr, Cyrus Barimani, Günter Hähn
  • Patent number: 8511932
    Abstract: A control and switchover system is provided for controlling milling depth and/or slope of a milling drum of a road construction machine during a milling operation to create a milled surface. The system controls the milling depth and/or slope at least in part on a measurement made with a first sensor. Without interrupting the milling operation the system switches over the control of the milling depth and/or slope to control based at least in part on a measurement made with a second sensor.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: August 20, 2013
    Assignee: Wirtgen GmbH
    Inventors: Jaroslaw Jurasz, Günter Hähn, Günter Tewes
  • Patent number: 8388070
    Abstract: In a mining machine (1) for the processing of a ground (3), in particular surface miner, with a machine frame (2), a cutting drum (4) mounted in the machine frame (2), a first transport device (6), which accepts mining material from the cutting drum (4), a second transport device (12), which accepts the mining material from the first transport device (6) at a point of acceptance (18) that is arranged at the lower end (14) of the second transport device (12) and is located below the upper end (22) of the first transport device (6), a conveyor suspension device (10) for the second transport device (12), which is mounted at the machine frame (2) to slew about a vertical slewing axis (8), where the second transport device (12) is pivotable about a first horizontal pivoting axis (24) that runs transverse to the longitudinal direction of the second transport device (12) and is mounted in the conveyor suspension device (10), and where the vertical slewing axis (8) of the conveyor suspension device (10) runs essentia
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: March 5, 2013
    Assignee: Wirtgen GmbH
    Inventors: Winfried von Schönebeck, Thomas Mannebach, Cyrus Barimani, Günter Hähn
  • Patent number: 8386196
    Abstract: This invention relates to a method for determining a wear state of a chisel, a chisel holder, and/or a chisel holder replacement system equipped with a chisel and chisel holder. For this method to give the user qualitative and quantitative information about the wear, according to one embodiment of this invention, a position of at least one point of the chisel and/or the chisel holder is determined by a contactless measurement method and a corresponding measurement result is compared in a switching unit to a reference value stored in a memory device.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: February 26, 2013
    Assignee: Wirtgen GmbH
    Inventors: Stefan Wagner, Cyrus Barimani, Günter Hähn
  • Patent number: 8376469
    Abstract: A scraper device for a milling drum mounted in a construction machine at a machine frame between lateral walls with a milling drum axis, with a two-part scraper blade arranged in a height-adjustable fashion behind the milling drum when seen in the direction of travel, the lower part of which can glide over the ground surface milled off by the milling drum, where the lower part of the scraper blade is adjustable in height when in operating position, it is provided that the upper part of the scraper blade is attached, at the upper end, to swivel about a swivelling axis parallel to the axis of the milling drum.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: February 19, 2013
    Assignee: Wirtgen GmbH
    Inventors: Heinz Kötting, Herbert Ley, Günter Hähn
  • Patent number: 8376653
    Abstract: In an automotive road construction machine (1), with a working drum (6) for working a ground surface or traffic surface (3) mounted at a machine frame (4), a combustion engine (10) for driving the working drum (6), and a drive train (8) between the combustion engine (10) and the working drum (6), it is provided that at least one vibration damper (5) and/or vibration absorber is arranged at the working drum (6) or in the drive train (8) downstream of the combustion engine (10), with the said vibration damper (5) and/or vibration absorber eliminating or reducing rotary vibrations generated by the combustion engine (10).
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: February 19, 2013
    Assignee: Wirtgen GmbH
    Inventors: Axel Mahlberg, Lothar Schwalbach, Günter Hähn
  • Patent number: 8350222
    Abstract: An imaging system includes interleaved emission detectors and transmission detectors. Emission detectors and transmission detectors can be interleaved along the axis of relative patient motion. Emission detectors and transmission detectors can be interleaved orthogonal to the axis of relative patient motion. Emission detectors can be single photon emission computed tomography detectors and the transmission detectors can be x-ray computed tomography detectors.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: January 8, 2013
    Assignees: Siemens Medical Solutions USA, Inc., Siemens Aktiengesellschaft
    Inventors: Alexander Hans Vija, Steffen Kappler, Guenter Hahn
  • Publication number: 20130000090
    Abstract: A tool for removing a chisel, in particular from a chisel holder, having a base element which receives an actuating member, wherein the actuating member has an expeller mandrel. The actuating member is adjustable along a displacement direction. In order to be able to perform the removal simply and rapidly, the actuating member of this invention is indirectly or directly coupled to a piston of a fluid-charged cylinder, or to an electric motor unit.
    Type: Application
    Filed: September 12, 2012
    Publication date: January 3, 2013
    Applicant: Wirtgen GmbH
    Inventors: Thomas Lehnert, Martin Lenz, Bernd Holl, Günter HÄHN
  • Publication number: 20120284989
    Abstract: The invention relates to a positioning arrangement for fitting an interchangeable milling assembly of a preset working width below the vertically adjustable chassis of a road milling machine, which chassis is carried on track-laying units. A vehicle carried on a plurality of wheels has a unit for receiving the milling assembly. The positioning arrangement has a handling chassis which can be lengthened in the longitudinal direction and to which the wheels are fixed. In a lowered position, the positioning arrangement, with the milling assembly resting on it, can be driven below the chassis of the road milling machine. In a raised position, the milling assembly can be fitted to the road milling machine.
    Type: Application
    Filed: April 16, 2012
    Publication date: November 15, 2012
    Applicant: WIRTGEN GMBH
    Inventors: Peter Busley, Cyrus Barimani, Andreas Salz, Günter Hähn
  • Patent number: 8308395
    Abstract: In a road construction machine (1) for the treatment of road surfaces with a milling drum (3) height-adjustable with regard to the milling depth, with a leveling device (4) with at least one controller (6a, 6c) which receives set values for the milling depth and/or the slope of the milling drum (3), and with at least one exchangeable sensor (A, B, C) or with several switchable sensors for registering the current actual value of the milling depth and/or the slope of the milling drum (3) relative to a reference surface, where the controller (6a, 6c) effects a milling depth control and/or a slope control for the milling drum (3) conditional on pre-determined set values and the currently measured actual values of the at least one sensor (A, B, C) by returning an adjustment value for achieving or maintaining the set value during the milling operation, where the leveling device (4) is provided with an indication and setting device (2) for indicating and setting operating parameters for the at least one sensor (A, B
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: November 13, 2012
    Assignee: Wirtgen GmbH
    Inventors: Jaroslaw Jurasz, Günter Hähn, Günter Tewes
  • Patent number: 8286316
    Abstract: A tool for removing a chisel, in particular from a chisel holder, having a base element which receives an actuating member, wherein the actuating member has an expeller mandrel. The actuating member is adjustable along a displacement direction. In order to be able to perform the removal simply and rapidly, the actuating member of this invention is indirectly or directly coupled to a piston of a fluid-charged cylinder, or to an electric motor unit.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: October 16, 2012
    Assignee: Wirtgen GmbH
    Inventors: Thomas Lehnert, Martin Lenz, Bernd Holl, Günter Hähn
  • Patent number: D692037
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: October 22, 2013
    Assignee: Wirtgen GmbH
    Inventors: Karsten Buhr, Thomas Lehnert, Cyrus Barimani, Günter Hähn
  • Patent number: D692038
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: October 22, 2013
    Assignee: Wirtgen GmbH
    Inventors: Karsten Buhr, Thomas Lehnert, Cyrus Barimani, Günter Hähn
  • Patent number: D692039
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: October 22, 2013
    Assignee: Wirtgen GmbH
    Inventors: Karsten Buhr, Thomas Lehnert, Cyrus Barimani, Günter Hähn
  • Patent number: D692040
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: October 22, 2013
    Assignee: Wirtgen GmbH
    Inventors: Karsten Buhr, Thomas Lehnert, Cyrus Barimani, Günter Hähn