Patents by Inventor Per-Erik Ostersund

Per-Erik Ostersund 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).

  • Switch-disconnector control unit
    Patent number: 6603087
    Abstract: A switch-disconnector control unit comprising an electromagnet as an actuator including a moving control arm, and a spring actuator including a control shaft. The control arm is controlled by an armature of the actuator and connected to the control shaft. Said control shaft is arranged to control the contacts of the switch-disconnector using the spring actuator. The control arm comprises a connection element, which is jointedly connected through a control element to the control shaft and the actuator. An articulated joint at the end of said connection element is formed of an oval opening and a pin. Said opening is shaped as an ellipse in the longitudinal direction of the connection element, and is dimensioned to form a clearance in the joint between the connection element and the control arm of the actuator.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: August 5, 2003
    Assignee: ABB Technology Ltd.
    Inventors: Nils Österholm, Per-Erik Östersund
  • Switch-disconnector control unit
    Publication number: 20030034330
    Abstract: The present invention relates to a switch-disconnector control unit comprising an electromagnet as an actuator including a moving control arm, and a spring actuator including a control shaft. The control arm is controlled by an armature of the actuator and connected to the control shaft. Said control shaft is arranged to control the contacts of the switch-disconnector using the spring actuator. The control arm comprises a connection element, which is jointedly connected through a control element to the control shaft and the actuator. An articulated joint at the end of said connection element is formed of an oval opening and a pin. Said opening is shaped as an ellipse in the longitudinal direction of the connection element, and is dimensioned to form a clearance in the joint between the connection element and the control arm of the actuator.
    Type: Application
    Filed: November 5, 2001
    Publication date: February 20, 2003
    Inventors: Nils Osterholm, Per-Erik Ostersund