Patents by Inventor Herbert Karl Horbruegger

Herbert Karl Horbruegger 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 performing an elevator rescue run
    Patent number: 7681693
    Abstract: Method for performing an elevator rescue run in an emergency situation, the elevator comprising and elevator car, a counter weight, a rope suspending the car and the counterweight, a drive motor, an emergency brake for stopping the car in an emergency situation, and a motor drive unit for supplying drive power to and for controlling the drive motor, having the following rescue run sequence steps: (a) operating the motor drive unit in a zero speed demand mode for holding the car at its present position; (b) lifting the brake, while holding the car in the zero speed demand mode; (c) determining the preferred movement direction of the car based on the power data as obtained by the motor drive unit; and (d) performing the rescue run in the direction of the determined preferred movement direction.
    Type: Grant
    Filed: January 11, 2005
    Date of Patent: March 23, 2010
    Assignee: Otis Elevator Company
    Inventors: Dirk Heinrich Tegtmeier, Herbert Karl Horbruegger, Michael Mann, Kristian Bernhard Wittjen
  • Method For Performing an Elevator Rescue Run
    Publication number: 20080202859
    Abstract: Method for performing an elevator rescue run in an emergency situation, the elevator comprising and elevator car, a counter weight, a rope suspending the car and the counterweight, a drive motor, an emergency brake for stopping the car in an emergency situation, and a motor drive unit for supplying drive power to and for controlling the drive motor, having the following rescue run sequence steps: (a) operating the motor drive unit in a zero speed demand mode for holding the car at its present position; (b) lifting the brake, while holding the car in the zero speed demand mode; (c) determining the preferred movement direction of the car based on the power data as obtained by the motor drive unit; and (d) performing the rescue run in the direction of the determined preferred movement direction.
    Type: Application
    Filed: January 11, 2005
    Publication date: August 28, 2008
    Inventors: Dirk Heinrich Tegtmeier, Herbert Karl Horbruegger, Michael Mann, Kristian Bernhard Wittjen