Patents by Inventor Viggo Norum

Viggo Norum 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).

  • Method for controlling a gear-shifting process in a manual transmission with active interlock
    Publication number: 20080105075
    Abstract: A method for controlling a gear-shifting process from an initial gear to a target gear in a manual transmission with active interlock. According to the method, the active interlock gear-shifting mechanism includes at least one shifting finger which co-operates with a selector fork, and has a layout geometry including a finger and a cam. The method contains the following steps: the selector fork of the initial gear is brought into a reliable shifting position by a method for compensating errors on the gear shifting mechanism, and/or the selector fork of the target gear is brought into a reliable shifting position a method for compensating errors on the gear shifting mechanism, before the target gear is engaged, when ever a temporarily non-critical gear-shift is to be carried out.
    Type: Application
    Filed: September 17, 2007
    Publication date: May 8, 2008
    Applicant: Luk Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Ole Waerp, Viggo Norum, Jan Royland, Lars Lein, Christer Svenkerud
  • Transmission actuator driven by an electric motor
    Patent number: 6893371
    Abstract: An actuator for a motor vehicle transmission has a shift cylinder performing rotary actuating movements. An electric motor is arranged inside the shift cylinder and drives the latter either through a harmonic drive mechanism or a planetary drive mechanism. The arrangement provides a high reduction ratio and an efficient use of limited space.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: May 17, 2005
    Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: John Mills, Bernhard Boll, Geir Huseby, Gunter Hirt, Viggo Norum, Jan Oyen, Lars Lein, Nigel Barnes, Simen Ronne
  • Transmission actuator driven by an electric motor
    Publication number: 20040055404
    Abstract: An actuator for a motor vehicle transmission has a shift cylinder performing rotary actuating movements. An electric motor is arranged inside the shift cylinder and drives the latter either through a harmonic drive mechanism or a planetary drive mechanism. The arrangement provides a high reduction ratio and an efficient use of limited space.
    Type: Application
    Filed: May 7, 2003
    Publication date: March 25, 2004
    Applicant: Luk Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: John Mills, Bernhard Boll, Geir Huseby, Gunter Hirt, Viggo Norum, Jan Oyen, Lars Lein, Nigel Barnes, Simen Ronne