Patents by Inventor Matthias Hübner

Matthias Hübner 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: 20230248217
    Abstract: An endoscope for laparoscopic surgery, including a shaft with a central axis, a proximal end, a distal end and a first optical beam path with a prism at the distal end of the shaft and having light entrance and exit surfaces, a lens with an optical axis, the lens behind the prism considered from the distal end of the shaft, and beam deflecting optics behind the lens considered from the distal end of the shaft. The light entrance surface is oriented perpendicular to the central axis, and the light exit surface forms a first angle of inclination with a first spatial axis oriented orthogonal to the central axis. To increase the numerical aperture of the lens, the optical axis is arranged perpendicular to the light exit surface of the prism. As a result, the lens has a cross-sectional area that is larger than the light entrance surface of the prism.
    Type: Application
    Filed: February 6, 2023
    Publication date: August 10, 2023
    Inventors: Stephan HUNZE, Eric MARKWEG, Matthias HÜBNER
  • Patent number: 11015538
    Abstract: A method for controlling a supercharging system for an internal combustion engine, the supercharging stage including a compressor and a turbine, and the turbine being settable with the aid of a VTG driving circuit. The method including: detecting an operating state setpoint variable, setting a maximum VTG control criterion for implementing the torque increase by an increase in a boost pressure. The setting of the maximum VTG control criterion comprising: ascertaining a setpoint boost pressure; ascertaining a VTG setpoint position as a function of the setpoint boost pressure; ascertaining an actual exhaust gas back pressure; ascertaining an actual exhaust gas pressure downstream from the turbine; ascertaining a maximum exhaust gas back pressure, taking into account the actual exhaust gas pressure downstream from the turbine; determining the VTG control criterion, based on the difference between the actual exhaust gas back pressure and the maximum exhaust gas back pressure.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: May 25, 2021
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Stefan Gebauer, Matthias Huebner
  • Patent number: 10876468
    Abstract: A method for controlling a turbocharging system with a turbocharging stage for an internal combustion engine, wherein the turbocharging stage comprises a compressor and a turbine and the turbine is adjustable via a VTG control. The method includes: acquiring an operating state target variable; adjusting a maximum VTG control criterion to implement the torque increase by increasing a boost pressure, wherein adjusting the maximum VTG control criterion includes: determining a target boost pressure; determining a VTG target position as a function of the target boost pressure; determining an actual exhaust back pressure; determining a maximum exhaust back pressure; determining the VTG control criterion taking into account the difference between the actual exhaust back pressure and the maximum exhaust back pressure. The VTG control criterion limits the VTG target position such that an accelerated adaptation of an actual boost pressure to the target boost pressure) takes place.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: December 29, 2020
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Matthias Huebner, Stefan Gebauer
  • Publication number: 20200165989
    Abstract: A method for controlling a supercharging system for an internal combustion engine, the supercharging stage including a compressor and a turbine, and the turbine being settable with the aid of a VTG driving circuit. The method including: detecting an operating state setpoint variable, setting a maximum VTG control criterion for implementing the torque increase by an increase in a boost pressure. The setting of the maximum VTG control criterion comprising: ascertaining a setpoint boost pressure; ascertaining a VTG setpoint position as a function of the setpoint boost pressure; ascertaining an actual exhaust gas back pressure; ascertaining an actual exhaust gas pressure downstream from the turbine; ascertaining a maximum exhaust gas back pressure, taking into account the actual exhaust gas pressure downstream from the turbine; determining the VTG control criterion, based on the difference between the actual exhaust gas back pressure and the maximum exhaust gas back pressure.
    Type: Application
    Filed: November 21, 2019
    Publication date: May 28, 2020
    Applicant: Volkswagen Aktiengesellschaft
    Inventors: Stefan GEBAUER, Matthias HUEBNER
  • Patent number: 10611887
    Abstract: The present disclosure relates to methods for producing a masterbatch, comprising the following steps a1) providing one or more siloxane compounds, terminated with at least one or with two or more amino-, hydroxy-, carboxy-, carboxylate-, carboxylic acid ester or carboxylic acid anhydride groups with the general formula (component A1): a2) providing one or more at least bifunctional compounds (component A2), which comprises two or more, groups that can be linked to X and Y; a3) providing one or more dyes (component A3) and/or a4) providing one or more functional additives (component A4); b) mixing the components according to a1), a2) and a3) or according to a1), a2) and a4), or according to a1), a2), a3) and a4); c) polymer formation of the mixture according to b), and d) melting and/or retaining the molten liquid state of the polymerisate formed in step c) in the extruder or in the discontinuous internal mixer, and e) transferring the polymerisate in according to step d) into a solid aggregate s
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: April 7, 2020
    Assignee: DAW SE
    Inventors: Friedhelm Röber, Matthias Hübner
  • Publication number: 20200018227
    Abstract: A method for controlling a turbocharging system with a turbocharging stage for an internal combustion engine, wherein the turbocharging stage comprises a compressor and a turbine and the turbine is adjustable via a VTG control. The method includes: acquiring an operating state target variable; adjusting a maximum VTG control criterion to implement the torque increase by increasing a boost pressure, wherein adjusting the maximum VTG control criterion includes: determining a target boost pressure; determining a VTG target position as a function of the target boost pressure; determining an actual exhaust back pressure; determining a maximum exhaust back pressure; determining the VTG control criterion taking into account the difference between the actual exhaust back pressure and the maximum exhaust back pressure. The VTG control criterion limits the VTG target position such that an accelerated adaptation of an actual boost pressure to the target boost pressure) takes place.
    Type: Application
    Filed: July 11, 2019
    Publication date: January 16, 2020
    Applicant: Volkswagen Aktiengesellschaft
    Inventors: Matthias HUEBNER, Stefan GEBAUER
  • Publication number: 20170015795
    Abstract: The present disclosure relates to methods for producing a masterbatch, comprising the following steps a1) providing one or more siloxane compounds, terminated with at least one or with two or more amino-, hydroxy-, carboxy-, carboxylate-, carboxylic acid ester or carboxylic acid anhydride groups with the general formula (component A1): a2) providing one or more at least bifunctional compounds (component A2), which comprises two or more, groups that can be linked to X and Y; a3) providing one or more dyes (component A3) and/or a4) providing one or more functional additives (component A4); b) mixing the components according to a1), a2) and a3) or according to a1), a2) and a4), or according to a1), a2), a3) and a4); c) polymer formation of the mixture according to b), and d) melting and/or retaining the molten liquid state of the polymerisate formed in step c) in the extruder or in the discontinuous internal mixer, and e) transferring the polymerisate in according to step d) into a solid aggregate s
    Type: Application
    Filed: July 15, 2016
    Publication date: January 19, 2017
    Inventors: Friedhelm RÖBER, Matthias HÜBNER
  • Patent number: 8985184
    Abstract: For regenerating the sand, which is obtained from sand molds and/or sand cores, which are produced from the sand and soluble glass as a binder and are used in metal casting, the sand obtained from the sand molds and/or sand cores is subjected to a mechanical regeneration stage and a thermal regeneration stage. During or after the mechanical regeneration stage, the obtained sand is mixed with a hardener for soluble glass.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: March 24, 2015
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Harald Schwickal, Matthias Huebner
  • Publication number: 20140166226
    Abstract: For regenerating the sand, which is obtained from sand molds and/or sand cores, which are produced from the sand and soluble glass as a binder and are used in metal casting, the sand obtained from the sand molds and/or sand cores is subjected to a mechanical regeneration stage and a thermal regeneration stage. During or after the mechanical regeneration stage, the obtained sand is mixed with a hardener for soluble glass.
    Type: Application
    Filed: February 24, 2014
    Publication date: June 19, 2014
    Applicant: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Harald SCHWICKAL, Matthias HUEBNER
  • Publication number: 20130153367
    Abstract: The invention relates to a device for pushing glass objects from a resting depositing plate to a conveyor belt moving at a uniform speed, characterized by a first electric motor (1) arranged in a stationary manner within a housing (49). The electric motor has a driving connection to a cantilever (4) that is rotatably supported about a vertical axis (8). An accommodating element (9) is located on the cantilever. The accommodating element carries a second electric motor (12), the output shaft of which extends vertically and is connected at the free end thereof to a crank arm (17) in a rotationally fixed manner.
    Type: Application
    Filed: April 23, 2011
    Publication date: June 20, 2013
    Applicant: HEYE INTERNATIONAL GMBH
    Inventors: Benedikt Felgenhauer, Matthias Hübner
  • Patent number: 8381898
    Abstract: An apparatus for pushing hollow glass articles from a depositing plate of an IS glass molding machine onto a belt conveyor comprises a transfer pusher (11), one end of which is rigidly connected to a vertical shaft (10) and the other end of which carries an arrangement of pushing fingers for the glass articles. The shaft (10) is supported in a rotary table (6) and functionally connected to a first rotary drive (13) carried by the rotary table while the rotary plate (6) is mounted on a bell-shaped bearing (24) supported on a console (1) by means of a hollow shaft (22), namely such that it is functionally connected to a second rotary drive (15?). An approximately exponential transfer curve of the pushing fingers that begins at the depositing plate and ends on the belt conveyor and subjects the hollow glass articles to the least possible stress can be realized.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: February 26, 2013
    Assignee: Heye International GmbH
    Inventors: Dirk Winkelhake, Matthias Hübner, Benedikt Felgenhauer
  • Publication number: 20120009048
    Abstract: An apparatus intended for pushing hollow glass articles from a depositing plate of an IS glass moulding machine onto a belt conveyor that moves rectilinearly at a uniform speed comprises a transfer pusher (11), one end of which is rigidly connected to a vertical shaft (10) and the other end of which carries an arrangement of pushing fingers (12) intended for contacting the hollow glass articles to be pushed. The shaft (10) is supported in a rotary table (6) and functionally connected to a first rotary drive (13) carried by the rotary table while the rotary plate (6) is mounted on a bell-shaped bearing (24) supported on a console (1) by means of a hollow shaft (22) extending parallel to the axis of the shaft (10), namely such that it is functionally connected to a second rotary drive (15?).
    Type: Application
    Filed: June 4, 2009
    Publication date: January 12, 2012
    Applicant: HEYE INTERNATIONAL GMBH
    Inventors: Dirk Winkelhake, Matthias Hübner, Benedikt Felgenhauer