Patents by Inventor Walter Mietschnig

Walter Mietschnig 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: 11970372
    Abstract: The present disclosure relates to a mobile crane, which comprises a superstructure, a main boom, which extends away from the superstructure and is arranged so as to be pivotable thereon, a derrick boom, which extends away from the superstructure and is arranged so as to be pivotable thereon, and a winch assembly, wherein the winch assembly comprises a main-boom winch for actuating the main boom and a derrick-boom winch for actuating the derrick boom. The mobile crane is characterised by an assistance apparatus for facilitating or fully automatically carrying out a raising and/or setting-down process of the derrick boom, which apparatus is designed to actuate the main boom and the derrick boom, such as the main-boom winch and the derrick-boom winch, at the same time.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: April 30, 2024
    Assignee: LIEBHERR-WERK NENZING GMBH
    Inventors: Walter Mietschnig, Manfred Schapler, Tizian Lamprecht
  • Patent number: 11912542
    Abstract: The present disclosure relates to a lifting device, in particular a mobile crane or a cable-operated excavator, that comprises a superstructure, a main boom that starts from the superstructure, a luffing boom that starts from the end of the main boom remote from the superstructure, a winch arrangement, and a tilting moment detection unit for determining the tilting moment acting on the lifting device by the position of the main boom and the luffing boom. The disclosure is characterized by an apparatus for assisting or for fully automatic carrying out an erecting and/or placing down procedure of a boom system comprising the main boom and the luffing boom that is configured to carry out the steps for erecting and/or placing down the boom system in dependence on the tilting moment detected by the tilting moment detection unit.
    Type: Grant
    Filed: March 17, 2022
    Date of Patent: February 27, 2024
    Assignee: LIEBHERR-WERK NENZING GMBH
    Inventors: Walter Mietschnig, Manfred Schapler, Tizian Lamprecht
  • Publication number: 20230135082
    Abstract: The invention relates to an undercarriage for a work machine, in particular a crawler crane, having a frame central part (for receiving a superstructure of the work machine), an elongate strut element which can be mounted on the frame central part, and a crawler support for supporting a crawler chain, wherein the crawler support has a recess for the passage of the strut element, and the strut element along its longitudinal direction has a plurality of spaced-apart locking elements for fixing the crawler support at different longitudinal positions of the strut element.
    Type: Application
    Filed: February 26, 2021
    Publication date: May 4, 2023
    Inventors: Walter MIETSCHNIG, Richard TORGHELE, Robert BARGEHR
  • Publication number: 20220297983
    Abstract: The present disclosure relates to a mobile crane, which comprises a superstructure, a main boom, which extends away from the superstructure and is arranged so as to be pivotable thereon, a derrick boom, which extends away from the superstructure and is arranged so as to be pivotable thereon, and a winch assembly, wherein the winch assembly comprises a main-boom winch for actuating the main boom and a derrick-boom winch for actuating the derrick boom. The mobile crane is characterised by an assistance apparatus for facilitating or fully automatically carrying out a raising and/or setting-down process of the derrick boom, which apparatus is designed to actuate the main boom and the derrick boom, such as the main-boom winch and the derrick-boom winch, at the same time.
    Type: Application
    Filed: March 18, 2022
    Publication date: September 22, 2022
    Inventors: Walter MIETSCHNIG, Manfred SCHAPLER, Tizian LAMPRECHT
  • Publication number: 20220297989
    Abstract: The present disclosure relates to a lifting device, in particular a mobile crane or a cable-operated excavator, that comprises a superstructure, a main boom that starts from the superstructure, a luffing boom that starts from the end of the main boom remote from the superstructure, a winch arrangement, and a tilting moment detection unit for determining the tilting moment acting on the lifting device by the position of the main boom and the luffing boom. The disclosure is characterized by an apparatus for assisting or for fully automatic carrying out an erecting and/or placing down procedure of a boom system comprising the main boom and the luffing boom that is configured to carry out the steps for erecting and/or placing down the boom system in dependence on the tilting moment detected by the tilting moment detection unit.
    Type: Application
    Filed: March 17, 2022
    Publication date: September 22, 2022
    Inventors: Walter MIETSCHNIG, Manfred SCHAPLER, Tizian LAMPRECHT
  • Publication number: 20220034757
    Abstract: The invention relates to a system for monitoring wind influences on a working machine, in particular a mobile crane or crawler crane, comprising at least one detection unit that is arranged on the working machine and by means of which a current wind speed can be detected, a recording unit that is configured to receive, to store, and to transmit data of the detection unit during and outside the operation of the working machine, a controller of the working machine that is configured to determine a current working machine state, an external processing unit that is configured to directly or indirectly receive and process data from the detection unit relating to an current wind speed and data from the controller, and an output device that is configured to receive data from the external processing unit. The controller and/or the external processing unit is/are configured here to determine a limit value for a wind speed in dependence on the current working machine state.
    Type: Application
    Filed: July 28, 2021
    Publication date: February 3, 2022
    Inventors: Walter MIETSCHNIG, Patrick JUSSEL
  • Patent number: 10850953
    Abstract: The invention relates to a lifting device, in particular a mobile crane or a cable-operated excavator, having an apparatus for monitoring the raising and lowering procedures of a boom system of the lifting device.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: December 1, 2020
    Assignee: Liebherr-Werk Nenzing GmbH
    Inventors: Walter Mietschnig, Manfred Schapler, Thomas Klimmer, Mathias Eder, Martin Stenech
  • Patent number: 10435278
    Abstract: The present invention relates to a mobile machine, in particular a crawler crane, comprising: an undercarriage with a tracklaying gear, and an uppercarriage which is rotatably mounted with respect to the undercarriage, wherein the tracklaying gear includes two crawler supports aligned parallel to each other, along whose longitudinal direction a crawler chain each is movably arranged, wherein one cantilever arm each is provided on the inner sides of the crawler supports facing each other, and at the distal end of the respective cantilever arm a support cylinder is arranged.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: October 8, 2019
    Assignee: Liebherr-Werk Nenzing GmbH
    Inventor: Walter Mietschnig
  • Publication number: 20190185298
    Abstract: The invention relates to a lifting device, in particular a mobile crane or a cable-operated excavator, having an apparatus for monitoring the raising and lowering procedures of a boom system of the lifting device.
    Type: Application
    Filed: June 19, 2018
    Publication date: June 20, 2019
    Inventors: Walter MIETSCHNIG, Manfred Schapler, Thomas Klimmer, Mathias Eder, Martin Stenech
  • Publication number: 20180029852
    Abstract: The present invention relates to a mobile machine, in particular a crawler crane, comprising: an undercarriage with a tracklaying gear, and an uppercarriage which is rotatably mounted with respect to the undercarriage, wherein the tracklaying gear includes two crawler supports aligned parallel to each other, along whose longitudinal direction a crawler chain each is movably arranged, wherein one cantilever arm each is provided on the inner sides of the crawler supports facing each other, and at the distal end of the respective cantilever arm a support cylinder is arranged.
    Type: Application
    Filed: July 27, 2017
    Publication date: February 1, 2018
    Inventor: Walter Mietschnig
  • Patent number: 7320377
    Abstract: The present application relates to a mobile conveying vehicle comprising axles rigidly arranged on a support frame, an operator's cabin and a series of units and additional unit parts such as an engine, pumps, a radiator, hydraulic tank and/or fuel tank. In accordance with the application, the operator's cabin and the units with additional unit parts are mounted on a common frame construction. The frame construction is uncoupled from the support frame.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: January 22, 2008
    Assignee: Liebherr-Werk Nenzing GmbH
    Inventor: Walter Mietschnig
  • Publication number: 20050236195
    Abstract: The application relates to a telescopic loader, in particular a reach stacker, consisting of a vehicle frame, wheels arranged thereon and a telescopic boom pivotably arranged thereon with a load receiving means for the transferring of heavy loads such as containers, trailers, sheet metal coils, part loads and the like. In one example, respective individual wheel hubs with an integrated planetary gear and a hydrostatic drive are provided for the driven wheels.
    Type: Application
    Filed: April 14, 2005
    Publication date: October 27, 2005
    Inventor: Walter Mietschnig
  • Publication number: 20050230190
    Abstract: The present application relates to a mobile conveying vehicle comprising axles rigidly arranged on a support frame, an operator's cabin and a series of units and additional unit parts such as an engine, pumps, a radiator, hydraulic tank and/or fuel tank. In accordance with the application, the operator's cabin and the units with additional unit parts are mounted on a common frame construction. The frame construction is uncoupled from the support frame.
    Type: Application
    Filed: April 15, 2005
    Publication date: October 20, 2005
    Inventor: Walter Mietschnig
  • Patent number: D756057
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: May 10, 2016
    Assignee: Liebherr-Werk Nenzing GmbH
    Inventors: Wolfgang Nessler, Jens Woide, Walter Mietschnig
  • Patent number: D758039
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: May 31, 2016
    Assignee: Liebherr-Werk Nenzing GmbH
    Inventors: Wolfgang Nessler, Jens Woide, Walter Mietschnig