Patents by Inventor Rasmus Koldborg Holm

Rasmus Koldborg Holm 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).

  • Actuator system with dual chambers
    Patent number: 9835222
    Abstract: The present invention relates to an actuator system with a magnetic lead screw, comprises a magnetic rotor and a translator cylinder, the translator cylinder comprises a magnetic stator, the translator cylinder has a closed first end and a second end confined by a lid, the lid having a shaft opening for a shaft coupled to the magnetic rotor, wherein the magnetic rotor, when inserted in the translator cylinder, is arranged to translate a linear movement of the translator cylinder into a rotational movement of the magnetic rotor by using magnetic flux interacting between the magnetic stator and the magnetic rotor, said rotational movements is being transferred through a shaft, the lid with a shaft opening arranged for receiving the shaft, wherein the shaft is arranged to make both the linear and the rotational movement in the shaft opening, the lid being arranged for confining the second end of the translator cylinder, the translator cylinder confined by the lid forms, when divided by the magnetic rotor, a firs
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: December 5, 2017
    Assignee: Aalborg Universitet
    Inventors: Nick Ilso Berg, Rasmus Koldborg Holm, Peter Omand Rasmussen
  • Method and apparatus for measurement and control of linear actuator
    Patent number: 9628001
    Abstract: An apparatus for controlling force of a magnetic lead screw actuator includes a magnetic lead screw actuator, an external control module and at least one sensor device integrated within the magnetic lead screw actuator. The magnetic lead screw actuator includes an electric machine, a rotor, and a translator. The rotor includes a rotor magnet assembly forming first helical magnetic threads along the rotor and the translator includes a translator magnet assembly forming second helical magnetic threads along the translator. Rotation of the rotor by the electric machine effects linear translation of the translator by interaction of the first and second helical magnetic threads. The external control module is electrically operatively coupled to an electric machine controller of the magnetic lead screw actuator.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: April 18, 2017
    Assignees: GM GLOBAL TECHNOLOGY OPERATIONS LLC, AALBORG UNIVERSITY
    Inventors: Klaus Trangbaek, Vladimir Suplin, Rasmus Koldborg Holm, Nick Ilso Berg, Peter Omand Rasmussen
  • METHOD AND APPARATUS FOR MEASUREMENT AND CONTROL OF LINEAR ACTUATOR
    Publication number: 20160344312
    Abstract: An apparatus for controlling force of a magnetic lead screw actuator includes a magnetic lead screw actuator, an external control module and at least one sensor device integrated within the magnetic lead screw actuator. The magnetic lead screw actuator includes an electric machine, a rotor, and a translator. The rotor includes a rotor magnet assembly forming first helical magnetic threads along the rotor and the translator includes a translator magnet assembly forming second helical magnetic threads along the translator. Rotation of the rotor by the electric machine effects linear translation of the translator by interaction of the first and second helical magnetic threads. The external control module is electrically operatively coupled to an electric machine controller of the magnetic lead screw actuator.
    Type: Application
    Filed: May 19, 2015
    Publication date: November 24, 2016
    Inventors: KLAUS TRANGBAEK, VLADIMIR SUPLIN, RASMUS KOLDBORG HOLM, NICK ILSO BERG, PETER OMAND RASMUSSEN
  • ACTUATOR SYSTEM WITH DUAL CHAMBERS
    Publication number: 20160265618
    Abstract: The present invention relates to an actuator system with a magnetic lead screw, comprises a magnetic rotor and a translator cylinder, the translator cylinder comprises a magnetic stator, the translator cylinder has a closed first end and a second end confined by a lid, the lid having a shaft opening for a shaft coupled to the magnetic rotor, wherein the magnetic rotor, when inserted in the translator cylinder, is arranged to translate a linear movement of the translator cylinder into a rotational movement of the magnetic rotor by using magnetic flux interacting between the magnetic stator and the magnetic rotor, said rotational movements is being transferred through a shaft, the lid with a shaft opening arranged for receiving the shaft, wherein the shaft is arranged to make both the linear and the rotational movement in the shaft opening, the lid being arranged for confining the second end of the translator cylinder, the translator cylinder confined by the lid forms, when divided by the magnetic rotor, a firs
    Type: Application
    Filed: November 10, 2014
    Publication date: September 15, 2016
    Inventors: Nick Ilso Berg, Rasmus Koldborg Holm, Peter Omand Rasmussen